EM12-T00-000-GND-40A

**REX12 Electronic Circuit Protector** 

## **Description** 

The compact and flexible all-in-one solution REX consists of several perfectly matched components. It comprises the EM12-T supply module for the plus and minus potential via a single or double channel REX12-T electronic circuit protector which can be mounted side by side in any number and the PM12-T potential extension module for plus and minus multiplication. Connection of the only 12.5 mm wide modules is exclusively with push-in terminals which allow no-tool time-saving wiring. 

The circuit protectors are placed on the symmetrical rail one after another in combination with EM12-T and PM12-T and are electrically connected by means of built-in connector arm - no further accessories are required. The circuit protector REX12-T offers selective overcurrent protection by responding to short circuit or overload faster than the switch mode power supply. Capacitive loads of up to 20,000µF can be switched on without problems. The circuit protector is available in all standard fixed and adjustable current ratings from 1 A to 10 A. Besides the UL508listed approval and NEC Class2, the REX12-T also meets the requirements of cable protection to EN60204-1. 

## **US patent number:** US 9,899,807 B2 

## **Features** pe 

- l Combination of supply modules, overcurrent protection and power distribution 

- l Selective load protection by means of electronic trip curve 

- l No accessories required for connecting the components 

- l Width per channel only 12.5 mm (1-channel) or 6.25 mm (2-channel) 

- l Fixed and adjustable current ratings 1 A - 10 A 

- l Integral fail-safe element, adjusted to max. current rating 

## **Benefits** 

   - l Saves cost – no further accessories required 

   - l Saves 50 % time through innovative and flexible mounting and connection technology 

   - l Saves space – with a width of only 12.5 mm per channel 

   - l Provides flexibility through ease of mounting, disassembly and modular design 

   - l Reduces storage costs because only one product is required 

      - for all current ratings 

- l Switching capacitive loads up to 20,000 µF 

- l Manual ON/OFF/reset momentary switch 

- l Clear status indication by means of LED and signal contact Si l Connection via push-in terminals including orange press release buttons 

## ~~LC~~ **Preferred types – for more details on all configurations please see page 4** 

Preferred types are E-T-A products most frequently used by E-T-A volumes. Our preferred types are supplied at shorter lead times than customers. We manufacture E-T-A preferred types in particularly high non-standard versions. ~~LC~~ **Preferred types** ~~en~~ **Preferred types Short description Preferred ratings (A) REX12-TA1 1-channel 2 4 6 10 2/2 4/4 6/6** ~~rs en DQ GO~~ REX12-TA1-107-DC24Vx x x x ~~ee~~ **REX12-TA2 2-channel 2 4 6 10 2/2 4/4 6/6** ~~es rs Gr~~ ~~**s** QOSD rs Us I~~ REX12-TA2-107-DC24Vx x x ~~nD~~ **2-channel, REX12D-TE2 1 A…10 A adjustable** ~~ee es eeQOesesGQ~~ REX12D-TE2-100-DC24Vx ~~PDPsGO~~ **Approvals Data sheet** ~~si~~ The current data sheet is available on our website: www.e-t-a.de/d359 NEC Class2 

**Compliances** [Lo 

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**REX12 Electronic Circuit Protector** 

## **Technical data  (Tamb = +23 °C, UB = DC 24 V)** 

## **Technical data  (Tamb = +23 °C, UB = DC 24 V)** 

|**REX12-Txx-xxx circuit protectors**<br>**REX12-TA1-107-DC24V-xA**<br>1-channel<br>**REX12-TB1-107-DC24V-xA**<br>1-channel<br>**REX12-TA2-107-DC24V-xA/xA**<br>2-channel<br>**REX12D-TE2-100-DC24V-xA-xA**<br>2-channel<br>The REX12-TAx is operated in the standard mode with EM12-T. The<br>REX12D-TE2 can be operated both with EM12D-T or EM12-T. The<br>operating mode EM12D-T (COM mode) or EM12-T (standard) is<br>recognised automatically. The following data exclusively refer to the<br>standard mode:<br>Operatingvoltage UB<br>DC 24 V(18...30 V)<br>Closed-circuit current I0<br>REX12-Tx1 1-channel in ON condition: Typically 5 mA<br>REX12-TA2 2-channel in ON condition: Typically 8 mA<br>REX12D-TE2 1 A-4 A 2-channel in ON condition:Typically 9 mA<br>REX12D-TE2 1 A-10 A 2-channel in ON condition: Typically12 mA<br>Reverse polarity<br>protection<br>Yes<br>Power failure<br>bufferingtime<br>upto 10 ms<br>Rated current IN<br>ratings:<br>REX12-Tx1<br>1 A, 2 A, 3 A, 4 A, 6 A, 8 A, 10 A<br>REX12-TA2<br>1 A/1 A, 2 A/2 A, 3 A/3 A, 4 A/4 A, 6 A/6 A<br>REX12D-TE2<br>1 A-4 A, 1 A – 10 A condition upon delivery<br>max. current rating<br>Visual status indication<br>green:<br>Load circuit connected<br>by means of LED<br>green/orange<br>blinking: load current warning limit<br>reached 90 %<br>orange: overload or short circuit until<br>disconnection<br>red:<br>-  after disconnection due to<br>overload or short circuit<br>-  after undervoltage release of<br>operating voltage in ON<br>condition with autoreset<br>OFF:<br>Device switched off by means of<br>ON/OFF momentary switch or<br>no operatingvoltage<br>**Load circuit**<br>Load output<br>power MOSFET switching output<br>(plus switching)<br>Load current warning limit (IWLimit)  typically 0.9 x IN<br>hysteresis<br>typically5%<br>Overload current<br>disconnection (IÜL)<br>typically IOL: INx 1.05 tOL: 3s<br>typically IOL: INx 1.35 tOL: 0,5s<br>with trip times (tÜL)<br>typically IOL: INx 2.00 tOL: 0.1s<br>typically IOL: INx 2.50 tOL: 0.012 s<br>short circuit<br>typically at short circuit (ISC) tSC: 0.002 s2)<br>triptime(tSC)<br>see time/current characteristic<br>Influence of ambient<br>see temperature factor table<br>temperature on<br>overload disconnection<br>and load current warninglimit<br>Voltage drop in load circuit at INand at IN70 % for REX12-Txx<br>between LINE+ and LOAD+<br>IN: 1 A (CL2)<br>typically 180 mV<br>IN: 70 %<br>typically 125 mV<br>IN: 2 A (CL2)<br>typically 110 mV<br>IN: 70 %<br>typically 80 mV<br>IN: 3 A<br>typically 120 mV<br>IN: 70 %<br>typically 85 mV<br>IN: 3 A-CL2<br>typically 130 mV<br>IN: 70 %<br>typically 90 mV<br>IN: 4 A<br>typically 115 mV<br>IN: 70 %<br>typically 80 mV<br>IN: 4 A-CL2<br>typically 180 mV<br>IN: 70 %<br>typically 120 mV<br>IN: 6 A<br>typically 170 mV<br>IN: 70 %<br>typically 110 mV<br>IN: 8 A<br>typically 160 mV<br>IN: 70 %<br>typically 105 mV<br>IN: 10 A<br>typically180 mV<br>IN: 70%<br>typically120 mV|REX12D-TE2-100-DC24V-1A-4A-CL2<br>IN:1 A-CL2<br>typically 50 mV<br>IN: 70 %<br>typically 42 mV<br>IN:2 A-CL2<br>typically 90 mV<br>IN: 70 %<br>typically 70 mV<br>IN:3 A-CL2<br>typically 135 mV<br>IN: 70 %<br>typically 95 mV<br>IN:4 A-CL2<br>typically 180 mV<br>IN: 70 %<br>typically 120 mV<br>REX12D-TE2-100-DC24V-1A-10A<br>IN: 1 A<br>typically 30 mV<br>IN: 70 %<br>typically 28 mV<br>IN: 2 A<br>typically 39 mV<br>IN: 70 %<br>typically 34 mV<br>IN: 3 A<br>typically 48 mV<br>IN: 70 %<br>typically 40 mV<br>IN: 4 A<br>typically 57 mV<br>IN: 70 %<br>typically 46 mV<br>IN: 5 A<br>typically 66 mV<br>IN: 70 %<br>typically 52 mV<br>IN: 6 A<br>typically 74 mV<br>IN: 70 %<br>typically 59 mV<br>IN: 7 A<br>typically 83 mV<br>IN: 70 %<br>typically 65 mV<br>IN: 8 A<br>typically 92 mV<br>IN: 70 %<br>typically 71 mV<br>IN: 9 A<br>typically 101 mV<br>IN: 70 %<br>typically 77 mV<br>IN: 10 A<br>typically110 mV<br>IN: 70%<br>typically83 mV|
|---|---|
||2)  depending on power source|
||Fail-safe element<br>IN: 1 A (CL2)<br>fail-safe IN: 1 A<br>integral<br>IN: 2 A (CL2)<br>fail-safe IN: 2 A<br>blade fuse<br>IN: 3 A<br>fail-safe IN: 3.15 A<br>adjusted to<br>IN: 3A-CL2<br>fail-safe IN: 4 A<br>related current rating IN<br>IN: 4 A<br>fail-safe IN: 4 A<br>IN: 4 A-CL2<br>fail-safe IN: 4 A<br>IN: 6 A<br>fail-safe IN: 6.3 A<br>IN: 8 A<br>fail-safe IN: 8 A<br>IN: 10 A<br>fail-safe IN: 10 A<br>IN: 1 A/1 A (CL2) fail-safe IN: 1 A/1 A<br>IN: 2 A/2 A (CL2) fail-safe IN: 2 A/2 A<br>IN: 3 A/3 A<br>fail-safe IN: 3.15A/3.15A<br>IN: 3 A/3 A-CL2 fail-safe IN: 4 A/4 A<br>IN: 4 A/4 A<br>fail-safe IN: 4 A/4 A<br>IN: 4 A/4 A-CL2 fail-safe IN: 4 A/4 A<br>IN: 6 A/6 A<br>fail-safe IN: 6.3 A/6.3 A<br>IN: 1 A-4 A-CL2   fail-safe IN: 4 A<br>IN: 1 A-10 A<br>failsafe IN: 16 A|
||operating voltage<br>OFF at typically  UB< 16.0 V<br>monitoring re.<br>ON at typically  UB> 19.0 V<br>undervoltage<br>hysteresis typically 2 V<br>with automatic OFF and ON switching|
||ON delay<br>- with power ON<br>channel 1: typically 100 ms (REX12-TAx)<br>channel 2: typically 200 ms (REX12-TAx)<br>channel 1: typically 1,500 ms (REX12D-TE2)<br>channel 2: typically 1,600 ms (REX12D-TE2)<br>- when switching on with  channel 1: typically  5 ms<br>ON /OFF switch or<br>channel 2: typically  100 ms<br>- after undervoltage<br>channel 1: typically  5 ms<br>channel 2: typically5 ms|
||disconnection of<br>-  manually on the device with the<br>ON/OFF momentary switch<br>-  after an overload / short circuit<br>disconnection with storage<br>(no automatic reset)<br>- temporarily at undervoltage<br>- at no operatingvoltage|
||Switch-on of load circuit<br>- momentary switch ON/OFF<br>device can only be switched on when<br>operating voltage is applied<br>-  applying<br>The device starts up with the condition<br>operatingvoltage<br>last stored.|
|||



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**REX12 Electronic Circuit Protector** 

## **Technical data  (Tamb = +23 °C, UB = DC 24 V)** 

|Enquire|Enquiry of currently adjusted|
|---|---|
|adjusted current rating|current rating, independent of the|
|with REX12D-TE2|operating mode (COM or standard),|
||possible for each channel directly on the<br>REX12D-TE2<br>Enquiry mode is started by pushing the<br>button between >= 2 seconds and < 5|
||seconds After releasing the button, the|
||LED is RED for 333 ms to indicate start of|
||enquiry. Afterwards, the LED flashes OR-<br>ANGE in a puls/break ratio of 1/2 with a<br>frequency of 1 Hz to indicate the adjusted<br>current value. When the adjusted current<br>rating is reached, signalling re-starts after|
||the RED LED re-lights for 333 ms. The|
||enquiry mode is left after the adjusted|
||current rating was signalled 5 times or|
|Adjustment of<br>current rating with|by pressing the button. Visual indication<br>will now show again the current operating<br>condition.<br>The enquiry mode is possible in all operat-<br>ing conditions (ON, OFF, UNDERVOLTAGE<br>and TRIPPED).<br>The adjustment mode directly on the<br>REX12D-TE2 can only be activated in the|
|REX12D-TE2|standard mode|
||The adjustment mode is started per<br>channel by pushing the button for >=<br>5 seconds. After releasing the button,<br>the LED is RED for 333 ms to indicate|
||start of adjustment. The LED is blinking|
||GREEN with a pulse/break ratio of 1/4 at|
||a frequency of 0.6 Hz for visual indication.<br>GREEN After reaching the max. adjust-<br>ment value, signalling re-starts. Overrun of<br>the max. adjustment value after 1 Ampere<br>is indicated by the RED LED (333 ms). The<br>current rating to be adjusted is adopted<br>by pushing the button during the blinking|
||period of 1 A up to the max. adjustment<br>value. If for instance the button is pushed<br>after the 7th illumination of the GREEN<br>LED, 7A is adopted as current rating and<br>visual indication again shows the current|
||operating condition. If the button is not|
||pressed, the adjustment mode is left|
||after 5 times signalling the current rating|
||range without a new current rating being|
||adopted and the visual indication returns|
||to current status indication.<br>The adjustment mode is possible in all<br>operating conditions (ON, OFF, UNDER-<br>VOLTAGE and TRIPPED).|



Go to video **Mounting and operation:** ene Pees oye oa 

|**Technical data  (Tamb = +23 °C, UB = DC 24 V)**|**Technical data  (Tamb = +23 °C, UB = DC 24 V)**|
|---|---|
|Capacitive loads|up to 20,000 µF:|
||depending on: cable attenuation, power supply used,|
||load current and current rating|
|Free-wheeling diode|external free-wheeling circuit at inductive|
||load(ratingaccordingto load)|
|Parallel connection of|not allowed|
|several load outputs||
|**Status output SM**|status indicator in REX system|
|Electrical data|minus switching signal output|
||Group signalling is implemented in con-|
||nection with EM12-T supplymodule|
|**Terminals**<br>**LOAD+**||
|Push-in terminal PT 2.5|0.14 mm2...2.5 mm2flexible|
||AWG24 – AWG14 rigid|
|strippinglength|8 mm...10 mm|
|Dimensions(w x h x d)|12.5 x 80 x 98.5 mm|
|Mass||
|REX12-TA1-xxx 1-channel approx. 57 g||
|REX12-TB1-xxx 2-channel approx. 60 g||
|REX12-TA2-xxx 2-channel approx. 58 g||
|REX12D-TE2-xxx 2-channel approx. 62g||
|**General data REX / EM / PM**|**General data REX / EM / PM**|
|Housingmaterial|moulded|
|Mounting|symmetrical rail to EN 60715-35x7.5|
|Ambient temperature TU|-25 °C...+60 °C|
||(without condensation,cf. EN 60204-1)|
|Storage temperature|-40 °C ... +70 °C|
|Mountingtemperature|+5°...+60 °C|
|Humidity<br>96 hrs / 95% RH/40 °C to IEC 60068-2-78-Cab||
|climate class 3K3 to EN 60721||
|Altitude|2,000 m above sea level|
||3,000m above sea level up to  +55 °C|
||4,000m above sea level upto +50 °C|
|Operationpressure|4 bar above atmosphericpressure|
|Corrosion|96hrs. in 5 % salt mist to|
|only PM and|IEC 60068-2-11 test Ka|
|EM accessories||
|Vibration|5gtest to IEC 60068-2-6,test Fc|
|Degree of protection (IEC 60529, DIN VDE 0470)||
|operating area REX12:|IP30|
|terminal area||
|EM,PM:|IP20|
|EMC requirements|noise emission<br>EN 61000-6-3|
|(EMC directive,CE logo)susce|susceptibility:<br>EN 61000-6-2|
|Insulation co-ordination||
|(IEC 60934)|0.5 kV /pollution degree 2|
|Dielectric strength|max. DC 30 V(load circuit)|
|Insulation resistance<br>(OFF condition)<br>Conformity|n/a, only electronic disconnection<br>CE marking|



Reset function a blocked load output (blocked by overload / short circuit) can externally be reset by the ON/OFF momentary switch Leakage current in typically <1 mA load circuit in OFF condition 

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**REX12 Electronic Circuit Protector** 

## **Approvals and standards** 

|**Approval**<br>**authority**|**Standard**|**UL file no.**|**Voltage ratings**|**Current rating range**|
|---|---|---|---|---|
|UL|UL 2367,<br>UL 1310<br>NEC Class2|E306740|DC 24 V|1...10 A<br>1 A, 2 A, 3 A, 4 A, 1 A...4 A|
|UL|UL 508 listed,<br>CSA C22.2<br>No. 14|E492388|DC 24 V|1 A…10 A|



PM and EM – accessories approvals see technical data of accessories 

## **Preferred types - a short explanation** 

Preferred types are E-T-A products most frequently used by E-T-A customers. We manufacture E-T-A preferred types in particularly high 

volumes. Our preferred types are supplied at shorter lead times than non-standard versions. 

## **Preferred types** 

|**Preferred types**|||||||||
|---|---|---|---|---|---|---|---|---|
|**Preferred types**|**Short description**|**Preferred ratings (A)**|||||||
|**REX12-TA1**|**1-channel**|**2**|**4**|**6**|**10**|**2/2**|**4/4**|**6/6**|
|REX12-TA1-107-DC24V-||x|x|x|x||||
|**REX12-TA2**|**2-channel**|**2**|**4**|**6**|**10**|**2/2**|**4/4**|**6/6**|
|REX12-TA2-107-DC24V-||||||x|x|x|
|**REX12D-TE2**|**2-channel,**<br>**adjustable**|**1 A...10 A**|||||||
|REX12D-TE2-100-DC24V-||x|||||||



## **Ordering number code – REX12-T** 

## **Ordering number code – REX12D-TE2** 

|**Type**|**Type**|||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**REX12**||Electronic circuitprotector with PT connection technology||||||||||||||||||
|||**Mounting method**||||||||||||||||||
|||**T**||rail mounting||||||||||||||||
|||||**Design**||||||||||||||||
|||||**A**||1 load output terminal per channel, fixed current ratings xA<br>or xA/xA||||||||||||||
|||||**B**||2 load output terminals per channel, fixed current ratings xA<br>(only1 channel)||||||||||||||
|||||||**Number of  channels**||||||||||||||
|||||||**1**||1 channel(only1-channel)||||||||||||
|||||||**2**||2 channels||||||||||||
|||||||||**Version**||||||||||||
|||||||||**1**withoutphysical isolation||||||||||||
||||||||||<br>|**Signal input**||||||||||
|||||||||||**0**||without signal input||||||||
|||||||||||||**Signal output**||||||||
|||||||||||||**7**||status output||||||
|||||||||||||||**Operating voltage**||||||
|||||||||||||||**DC 24**||**V**<br>voltage ratingDC 24 V||||
|||||||||||||||||**Rated current**||||
|||||||||||||||||1 A(only1 channel,Class2)||||
|||||||||||||||||2 A(only1 channel,Class2)||||
|||||||||||||||||3 A(only1 channel)||||
|||||||||||||||||4 A(only1 channel)||||
|||||||||||||||||6 A(only1 channel)||||
|||||||||||||||||8 A(only1 channel)||||
|||||||||||||||||10 A(only1 channel)||||
|||||||||||||||||1 A / 1||A(only2 channels,Class2)||
|||||||||||||||||2 A / 2||A(only2 channels,Class2)||
|||||||||||||||||3 A/3 A||(only2 channels)||
|||||||||||||||||4 A/4 A||(only2 channels)||
|||||||||||||||||6 A/6 A||(only2 channels)||
|||||||||||||||||||**Approval**||
|||||||||||||||||||CL2 Class2<br>(only3A and 4A versions)||
|||||||||||||||||||||
|**REX12 -**<br>**REX12 -**||**T**<br>**T**||**A**<br>**A**||**1 -**<br>**2 -**||**1**<br>**1**||**0**<br>**0**||**7**<br>**7**||**- DC24V**<br>**- DC24V**||**- 10 A**example (1-channel)<br>**- 4A/4A - CL2**example(2-channel)||||



## **Type** 

**REX12D** intelligent electronic circuit protector with PT connection technology 

|||**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|**Mounting method**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||**T**||rail mounting||||||||||||||||
|||||**Design**||||||||||||||||
|||||**E**||1 load output terminal per channel, variable current ratings<br>xA/xA,adjustable standard and COM mode||||||||||||||
|||||||**Number of  channels**||||||||||||||
|||||||**2**||2 channels||||||||||||
|||||||||**Version**||||||||||||
|||||||||**1**withoutphysical isolation||||||||||||
||||||||||<br>|**Signal input**||||||||||
|||||||||||**0**||without signal input||||||||
|||||||||||||**Signal output**||||||||
|||||||||||||**0**||without signal output||||||
|||||||||||||||**Operating voltage**<br>**DC 24 V**voltage ratingDC 24 V<br>**Rated current**<br>1 A – 10 A(only2 channels)<br>1 A – 4 A(only2 channels)<br>**Approvals**<br>**CL2**Class2 (only for<br>1 A - 4 A version)||||||
|||||||||||||||||voltage ratingDC 24 V||||
|||||||||||||||||**Rated current**||||
|||||||||||||||||1 A – 10 A(only2 channels)||||
|||||||||||||||||1 A – 4||A(only2 channels)||
|||||||||||||||||||**Approvals**||
|||||||||||||||||||**CL2**Class2 (only for<br>1 A - 4 A version)||
|||||||||||||||||||||
|**REX12D**||**-T**||**E**||**2 -**||**1**||**0**||**0**||**- DC24V**||**-1 A-10**||**A CL2**orderingexample||



## **Custom designed versions** 

Looking for a version you cannot find in our ordering number code? Please get in touch. We will be pleased to find a solution for you. 

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2245 

**REX12 Electronic Circuit Protector** 

## **Overview of ordering number codes** 

|Supply module|EM12-T00-000-DC24V-40A<br>EM12-T01-001-DC24V-40A|
|---|---|
|Circuit protectors:<br>1-channel|REX12-TA1-107-DC24V-1A (Class2)<br>REX12-TA1-107-DC24V-2A (Class2)<br>REX12-TA1-107-DC24V-3A<br>REX12-TA1-107-DC24V-3A-CL2 (Class2)<br>REX12-TA1-107-DC24V-4A<br>REX12-TA1-107-DC24V-4A-CL2 (Class2)<br>REX12-TA1-107-DC24V-6A<br>REX12-TA1-107-DC24V-8A<br>REX12-TA1-107-DC24V-10A|
|Circuit protectors:<br>1-channel<br>2 load output termi-<br>nals|REX12-TB1-107-DC24V-1A (Class2)<br>REX12-TB1-107-DC24V-2A (Class2)<br>REX12-TB1-107-DC24V-3A<br>REX12-TB1-107-DC24V-3A-CL2 (Class2)<br>REX12-TB1-107-DC24V-4A<br>REX12-TB1-107-DC24V-4A- CL2 (Class2)<br>REX12-TB1-107-DC24V-6A<br>REX12-TB1-107-DC24V-8A<br>REX12-TB1-107-DC24V-10A|
|Circuit protectors:<br>2-channel<br>REX12-TA2-107-DC24V-1A/1A (Class2)<br>REX12-TA2-107-DC24V-2A/2A (Class2)<br>REX12-TA2-107-DC24V-3A/3A<br>REX12-TA2-107-DC24V-3A/3A-CL2<br>(Class2)<br>REX12-TA2-107-DC24V-4A/4A<br>REX12-TA2-107-DC24V-4A/4A-CL2<br>(Class2)<br>REX12-TA2-107-DC24V-6A/6A<br>Circuit protectors<br>2-channel, adjustable<br>REX12D-TE2-100-DC24V-1A-4A-CL2<br>(Class 2)<br>REX12D-TE2-100-DC24V-1A-10A<br>Accessories||
|Supply modules<br>Potential modules|EM12-T00-100-LINE-40A<br>EM12-T00-200-LINE-40A<br>EM12-T00-000-GND-40A<br>EM12-T00-300-GND-40A<br>PM12-T01-00-LOAD-20A<br>PM12-T02-00-LOAD-20A<br>PM12-T03-00-GND-20A|



## **REX12-Quat-Pack-1A-10A electronic circuit protector** 

REX12-Quat-Pack-1A-10A 

- 4-channel pack, selective load protection, voltage rating DC24V variable current ratings 1A-10A in 1A steps, rail mounting, installation width 37.5 mm, push-in connection technology, signalling with auxiliary contact N/O 

current ratings 4 x 1A-10A adjustable 

A pack consists of 

- 1 supply module, EM12-T01-001-DC24V-40A 

- 2 circuit protectors, 2-channel, adjustable 1-10A, REX12D-TE2-100-DC24V-1A-10A 

## **part number: X22378501** 

## **REX12-Quat-Pack-1A-10A** 

**==> picture [249 x 182] intentionally omitted <==**

**----- Start of picture text -----**<br>
EM12- REX12D- REX12D-<br>T01-001 TE2-1xx TE2-1xx<br>DC24V40 A DC24V10A9A8A7A6A5A4A3A2A1A DC24V10A9A8A7A6A5A4A3A2A1A<br>13 14<br>1-10A 1-10A<br>0V 1-10A 1-10A<br>2.1 2.2 2.1 2.2<br>LINE +1 LOAD + LOAD +<br>G<br>E<br>R<br>M<br>A<br>N<br>Y<br>**----- End of picture text -----**<br>


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**REX12 Electronic Circuit Protector** 

## **Dimensions with connection diagram: REX12-TA1-xxx / REX12-TB1-xxx/ REX12-TA2-xxx / REX12D-TE2-xxx** 

**==> picture [512 x 284] intentionally omitted <==**

**----- Start of picture text -----**<br>
98.5<br>38.8<br>92<br>36.2<br>contact arm<br>12.5<br>4.92<br>REX12- REX12- REX12- REX12-<br>TA2-1xx TA2-1xx TB1-1xx TA1-1xx<br>Label e.g. from<br>PhoenixContact ZBF-12 DC24V10A9A8A7A6A5A4A3A2A1A DC24V DC24V DC24V<br>7.5<br>xA xA 2.95<br>Button for ON/OFF<br>or reset with<br>integral status  xA xA xA xA<br>indication<br>2.1 2.2 2.1 2.2 2.1 2.2 2.1<br>LOAD + LOAD + LOAD + LOAD +<br>2-channel 2-channel 1-channel 1-channel installation  operating<br>area area<br>snap-on socket for<br>rail EN 60715-35x7.5<br>G<br>E<br>R<br>M<br>80 31.5 AN<br>Y<br>**----- End of picture text -----**<br>


## **Typical time/current characteristic (Tamb = +23 °C, UB = DC – 24 V)** 

**==> picture [249 x 145] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000<br>100<br>10<br>1<br>0.1<br>0.01<br>0.001<br>0.8 1  1.2 1.4 1.6 1.8  2  2.2 2.4 2.6 2.8  3  ISC<br>...times rated current<br>trip time in seconds<br>**----- End of picture text -----**<br>


## **Temperature factor / continuous duty** 

The time/current characteristic depends on the ambient temperature. In order to determine the max. load current, please multiply the current rating with the temperature factor and consider the factor for side-by-side mounting. 

## **Temperature factor table:** 

|ambient temperature [°C]|0|10|23|40|50|60|
|---|---|---|---|---|---|---|
|temperature factor|1|1|1|0.95|0.90|0.85|



## **Note:** 

When mounted side-by-side, the devices can carry max. 80 % of their rated load or a different rating has to be selected (see Technical Information on www.e-t-a.de/ti_d) 

With high temperatures, the load current warning threshold “warn limit typically 0.9 x IN” will be reduced in accordance with the temperature factor. 

Selection of current rating of the circuit protector ≤ rating of power supply. 

## **Basic trip curve and schematic diagram REX12** 

**==> picture [249 x 145] intentionally omitted <==**

**----- Start of picture text -----**<br>
Schematic diagram REX12<br>1,000<br>100 LINE blade fuse<br>4 A<br>10<br>1<br>semi-<br>0.1 4 A conductor<br>0.01<br>LOAD<br>0.001<br>0.8    1.0     1.2     1.4     1.6     1.8     2.0     2.2     2.4     2.6     2.8     3.0     3.2     3.4   ISC<br>... times rated current trip curve REX12<br>trip time in seconds<br>**----- End of picture text -----**<br>


## **Mounting position REX… preferred mounting position horizontal** 

**==> picture [249 x 186] intentionally omitted <==**

**----- Start of picture text -----**<br>
G<br>E<br>R<br>M<br>A<br>N<br>Y<br>**----- End of picture text -----**<br>


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**REX12 Electronic Circuit Protector** 

## **Description - EM12-T supply module** 

The EM12-T supply module receives the DC 24 V supply voltage, e.g. from a switch mode power supply, and distributes it to the mounted circuit protectors via the integral connector arm of the REX12-T. 

The potential-free auxiliary contact in the EM12-T indicates any detected failures through the circuit protector,e.g. to the superordinate control unit (CPU). 

## **Technical data  (Tamb = +23 °C, UB = DC 24 V)** 

|Operatingvoltage UB|DC 24 V(18...30 V)|
|---|---|
|Operatingcurrent IB|max. 40 A|
|Reverse polarity||
|protection|Yes|
|**Signalling**|**only EM12-T01-001-DC24V-40A**|
|Quiescent current I0|typically10 mA|
|potential-free auxiliary change-over contact||
||max. DC 30 V / 0.5 A min. 10 V / 1 mA|
|Group signalling Si<br>contact: Si (13) / Si (14)|auxiliary contact, make contact|
|normal condition:|Auxiliary contact closed|
||based on all protection modules|
||- when ON, load output connected|
||- when OFF, load output disconnected|
|Fault condition:|Auxiliary contact open|
||based on one or more protection modules|
||-  after overload or short circuit trip|
||-  after undervoltage release of operating|
||voltage in ON condition with autoreset|
||-  at no operating voltage UBin supply<br>module|
|Insulation co-ordination|0.5 kV /pollution degree 2|
|Power failure<br>bufferingtime|Si upto 10 ms|
|**Screw terminals**|**LINE+**|
|Push-in terminal PT 10|0.5 mm2...10 mm2flexible|
|strippinglength|AWG24 – AWG8 rigid<br>18 mm|
|**Screw terminals**|**0 V / Si 13 / Si 14**|
|Push-in terminal PT 2.5|0.14 mm2... 2.5 mm2flexible|
||AWG24 – AWG14 rigid|
|strippinglength|8 mm...10 mm|
|Dimensions(w x h x d)|12.5 x 80 x 98 mm|
|Mass|approx. 52g|
|Circuit protectors can be|mounted side-by-side|
|REX12-Tx1-x or||
|REX12-TA2-x or||
|REX12D-TE2 2-channel|max. 16pcs|



## **Ordering number code - EM12** 

**Type** 

**EM12** supply module for REX12, with PT connection technology **Mounting method T** rail mounting **Version: Communication, interface 00** without signal 

## **Dimensions EM12-T01-xxx  supply module** 

**==> picture [249 x 238] intentionally omitted <==**

**----- Start of picture text -----**<br>
98<br>38.6<br>12.4 91.5<br>4.89 36.0<br>EM12-<br>T01-001<br>DC24V<br>40 A<br>13 14<br>OV<br>LINE +1<br>snap-on socket for<br>rail EN 60715-35x7.5<br>Label e.g. from<br>Phoenix Contact ZBF-12<br>G<br>E<br>R<br>M<br>A<br>N<br>Y<br>80<br>**----- End of picture text -----**<br>


## **Schematic diagram EM12-Txx-xxx with REX12-xx** 

## **EM12-T01-001-DC24V-40A** 

**==> picture [172 x 102] intentionally omitted <==**

**----- Start of picture text -----**<br>
EM12-T REX12-T<br>14<br>13<br>0 V<br>LINE+1<br>LOAD+  2.1    |  (2.2)<br>**----- End of picture text -----**<br>


**==> picture [102 x 7] intentionally omitted <==**

**----- Start of picture text -----**<br>
EM12-T00-000-DC24V-40A<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
EM12-T REX12-T<br>0 V<br>LINE+1<br>LOAD+  2.1    |  (2.2)<br>**----- End of picture text -----**<br>


**01** analog signal **Additional functionality** 

**0** without **Signal input** 

**0** without signal input 

**Signal output** 

**0** without auxiliary contact signal make contact **Operating voltage DC 24 V voltage rating DC 24 V Rated current 40 A** 

**EM12 - T    01  - 0 0 1  -  DC 24 V   -   40 A** ordering example 

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**==> picture [512 x 18] intentionally omitted <==**

**----- Start of picture text -----**<br>
Application example: REX… mounting on or removing from symmetrical rail<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Connector arm REX... mount on symmetrical<br>can be closed rail, close connector arm<br>Remove REX... from rail<br>Push REX<br>towards rail<br>Mount REX...<br>side-by-side with EM...<br>Unlatch with screwdriver,<br>tilt upwards and remove<br>(connector arm can be closed)<br>Latch on enclosure<br>downwards<br>**----- End of picture text -----**<br>


## **Application example: REX... Replacement or disassembly** 

**==> picture [512 x 243] intentionally omitted <==**

**----- Start of picture text -----**<br>
Open connector  Open connector<br>arm arm<br>Pull out at right<br>angles to the rail<br>Unlatch with screwdriver<br>**----- End of picture text -----**<br>


**==> picture [249 x 18] intentionally omitted <==**

**----- Start of picture text -----**<br>
Instructions for installation<br>**----- End of picture text -----**<br>


Mounting or actuation of the REX connector arm must only be effected at dead-voltage. For start-up the REX connector arm must be closed. 

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**REX12 Electronic Circuit Protector** 

## **Application example: EM12-T with REX12-TA1… and REX12-TA2…** 

**==> picture [511 x 259] intentionally omitted <==**

## **Application example: REX... Locked connector arms** 

**==> picture [249 x 193] intentionally omitted <==**

**----- Start of picture text -----**<br>
Connector arms can<br>be locked with<br>enclosure<br>**----- End of picture text -----**<br>


## **Application example: REX12(D)-T… distance between cable duct and connector arm** 

**==> picture [249 x 180] intentionally omitted <==**

**----- Start of picture text -----**<br>
60<br>23.6<br>15 5.91<br>G E R M A N Y<br>80 31.5<br>**----- End of picture text -----**<br>


All information and data given on our products are accurate and reliable to the best of our knowledge, but E-T-A does not accept any responsibility for the use in applications which are not in accordance with the present specification. E-T-A reserves the right to change specifications at any time in the interest of improved design, performance and cost effectiveness, Dimensions are subject to change  without notice. Please enquire for the latest dimensional drawing with tolerances if required. All dimensions, data, pictures and descriptions are for information only and are not binding. Amendments, errors and omissions excepted. Ordering codes of the products may differ from their marking. 

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**REX12 Electronic Circuit Protector** 

## **Accessories** 

## **EM12-T00-000-GND-40A supply module left – 0V – GND** 

**==> picture [275 x 579] intentionally omitted <==**

**----- Start of picture text -----**<br>
view: X<br>98<br>12.4<br>4.88 38.6<br>EM12-T00<br>-000-GND<br>DC 0-24 V<br>40 A<br>view: X<br>0 V<br>0 V<br>GND – coding notch contact via connector arm<br>PM12-T03-00-GND-20A potential module – GND (10-way)<br>view: X<br>12.5<br>4.92<br>PM12-T03 3.5  3.10<br>-00-GND<br>DC 0-24 V 3.4  3.9<br>20 A<br>3.5  3.10<br>3.3  3.8<br>3.4  3.9<br>3.2  3.7<br>3.3  3.8<br>3.2  3.7 view: X 3.1  3.6<br>3.1  3.6<br>0 V<br>0 V<br>View without connector arm<br>GND – coding notch contact via connector arm<br>GND – coding notch contact via connector arm<br>G<br>E<br>R<br>M<br>DC 0-24 V AN<br>Y<br>EM12-T00-000-GND-40A Entrance Module<br>80 31.5<br>G<br>E<br>R<br>M<br>DC 0-24 V AN<br>Y<br>80 31.5 PM12-T03-00-GND-20A Potential Module<br>**----- End of picture text -----**<br>


**==> picture [218 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
PM12-T03-00-GND-20A potential module – GND (10-way)<br>**----- End of picture text -----**<br>


## **Technical data** 

||**Technical data**|
|---|---|
||Please observegeneral data of REX / EM / PM|
||Operatingvoltage UB0 V – DC 24 V(0...30 V)<br>Operatingcurrent IB<br>max. load 40 A<br>line terminal<br>0 V – GND<br>Push-in terminal PT 10<br>0.5 mm2...10 mm2flexible<br>AWG24 – AWG8 rigid<br>strippinglength<br>18 mm<br>Dimensions(w x h x d)<br>12.5 x 80 x 98 mm<br>Mass<br>approx. 40g<br>Approvals<br>UL 1059,File # E335289|



## **Schematic diagram** 

**==> picture [69 x 5] intentionally omitted <==**

**----- Start of picture text -----**<br>
EM12-T00-000-GND-40A<br>**----- End of picture text -----**<br>


**==> picture [140 x 69] intentionally omitted <==**

**----- Start of picture text -----**<br>
EM12-T PM12-T<br>-GND- EM12-T<br>-GND-<br>0 V<br>**----- End of picture text -----**<br>


## **Technical data** 

||**Technical data**|
|---|---|
||Please observegeneral data of REX / EM / PM|
||Operatingvoltage UB0 V – DC 24 V(0 ... 30 V)|
||Operatingcurrent IB<br>max. load 20 A|
||line terminal<br>0 V – GND<br>Push-in terminal PT 2.5<br>0.14 mm2...2.5 mm2flexible<br>AWG24 – AWG14 rigid<br>strippinglength<br>8 mm...10 mm<br>Dimensions(w x h x d)<br>12.5 x 80 x 98 mm<br>Mass<br>approx. 52g<br>Approvals<br>UL 1059,File # E335289|



## **Schematic diagram** 

**==> picture [91 x 80] intentionally omitted <==**

**----- Start of picture text -----**<br>
PM12-T03-00-GND-20A<br>3.5 3.10<br>3.4 3.9<br>3.3 3.8<br>3.2 3.7<br>3.1 3.6<br>0 V<br>max. 10 A / terminal<br>**----- End of picture text -----**<br>


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## **Accessories** 

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**----- Start of picture text -----**<br>
EM12-T00-300-GND-40A  supply module centre/right – 0V – GND<br>view: X<br>Technical data<br>12.5 Please observe general data of REX / EM / PM<br>4.92<br>Operating voltage UB0 V – DC 24 V (0 ... 30 V)<br>Operating current IB max. load 40 A<br>EM12-T00 line terminal  0 V – GND<br>-300-GND Push-in terminal PT 10  0.5 mm [2] ...10 mm [2]  flexible<br>AWG24 – AWG8 rigid<br>stripping length  18 mm<br>DC 0-24 V<br>20 A Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>Mass  approx. 45 g<br>Approvals  UL 1059, File # E335289<br>Schematic diagram<br>EM12-T00-300-GND-40A<br>view: X<br>0 V 0 V<br>View without connector arm<br>0 V<br>GND – coding notch contact via connector arm<br>0 V<br>GND – coding notch contact via connector arm<br>G<br>E<br>R<br>M<br>DC 0-24 V AN<br>Y<br>Entrance Module<br>80 31.5 EM12-T00-300-GND-40A<br>**----- End of picture text -----**<br>


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## **Accessories** 

**==> picture [466 x 613] intentionally omitted <==**

**----- Start of picture text -----**<br>
PM12-T01-00-LOAD-20A potential module – LOAD<br>(10-way, 1 x supply, 9 x LOAD)<br>view: X<br>12.5  Technical data<br>4.92 Please observe general data of REX / EM / PM<br>Operating voltage UB DC 24 V (18...30 V)<br>PM12-T01-00-LOAD Operating current IB max. load 20 A<br>2.5  2.10 Insulation co-ordination  0.8 kV / pollution degree 2<br>DC 24 V Screw terminals  LOAD+<br>20 A 2.4  2.9 Push-in terminal PT 2.5  0.14 mm [2] ...2.5 mm [2]  flexible<br>2.5  2.10 stripping length  AWG24 – AWG14 rigid 8 mm...10 mm<br>2.3  2.8 Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>2.4  2.9 Mass  approx. 52 g<br>2.3  2.8 Approvals  UL 1059, File # E335289<br>2.2  2.7<br>2.2  2.7<br>2.1  2.6 view: X 2.1  2.6 Schematic diagram<br>LOAD+ PM12-T01-00-LOAD-20A<br>LOAD+<br>2.5 2.10<br>View without connector arm ADDR<br>2.4 2.9<br>contact via connector arm COM 2.3 2.8<br>2.2 2.7<br>0 V<br>2.1 2.6<br>LINE+1<br>max. 10 A / terminal<br>contact via connector arm<br>PM12-T02-00-LOAD-20A potential module – LOAD<br>(2 x 5-way, 1 x supply and 4 x LOAD each)<br>view: X<br>Technical data<br>12.5 Please observe general data of REX / EM / PM<br>4.92 Operating voltage UB DC 24 V (18...30 V)<br>Operating current IB max. load 20 A<br>PM12-T02 2.5  2.10 Insulation co-ordination  0.8 kV / pollution degree 2<br>-00-LOAD Screw terminals  LOAD+<br>Push-in terminal PT 2.5  0.14 mm [2] ...2.5 mm [2]  flexible<br>DC 24 V20 A 2.4  2.9 stripping length  AWG24 – AWG14 rigid 8 mm...10 mm<br>Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>2.5  2.10 2.3  2.8 Mass  approx. 52 g<br>Approvals  UL 1059, File # E335289<br>2.4  2.9<br>2.2  2.7<br>2.3  2.8<br>2.2  2.7 view: X 2.1  2.6 PM12-T02-00-LOAD-20A Schematic diagram<br>2.1  2.6<br>2.5 2.10<br>LOAD+ LOAD+ ADDR 2.4 2.9<br>COM 2.3 2.8<br>View without connector arm 2.2 2.7<br>0 V<br>contact via connector arm 2.1 2.6<br>LINE+1 max.10 A max.10 A<br>max. 10 A / terminal<br>contact via connector arm<br>G<br>E<br>R<br>DC 24 V MA<br>N<br>Y<br>Potential Module<br>80 31.5<br>PM12-T01-00-LOAD-20A<br>G<br>E<br>R<br>DC24 V M<br>A<br>N<br>Y<br>Potential Module<br>80 31.5 PM12-T02-00-LOAD-20A<br>**----- End of picture text -----**<br>


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## **Accessories** 

**==> picture [466 x 611] intentionally omitted <==**

**----- Start of picture text -----**<br>
EM12-T00-100-LINE-40A supply module centre/right – LINE, LINE connected<br>view: X<br>12.5  Technical data<br>Please observe general data of REX / EM / PM<br>Operating voltage UB DC 24 V (18...30 V)<br>EM12-T00 Operating current IB max. load 40 A<br>-100-LINE Insulation co-ordination  0.8 kV / pollution degree 2<br>Screw terminals  LINE+1<br>DC 24 V40 A Push-in terminal PT 10  0.5 mm [2] ...10 mm [2]  flexible<br>AWG24 – AWG8 rigid<br>stripping length  18 mm<br>Screw terminals  0 V<br>push-in terminal PT 2.5     0.14mm [2] ...2.5mm [2] , flexible<br>AWG26 – AWG14 rigid<br>Stripping length   8 mm ... 10 mm<br>0V Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>Mass  approx. 52 g<br>0V Approvals  UL 1059, File # E335289<br>view: X<br>LINE+1 Schematic diagram<br>LINE+1 EM12-T00-100-LINE-40A<br>View without connector arm<br>contact via connector arm ADDR<br>COM<br>0 V<br>LINE+1<br>contact via connector arm LINE+1 0V<br>EM12-T00-200-LINE-40A supply module centre/LINE, LINE separated<br>view: X<br>Technical data<br>12.5 Please observe general data of REX / EM / PM<br>Operating voltage UB DC 24 V (18...30 V)<br>Operating current IB max. load 40 A<br>EM12-T00 Insulation co-ordination  0.8 kV / pollution degree 2<br>-200-LINE Screw terminals  LINE+1<br>Push-in terminal PT 10  0.5 mm [2] ...10 mm [2]  flexible<br>DC 24 V40 A stripping length  AWG24 – AWG8 rigid 18 mm<br>Screw terminals  0 V<br>Push-in terminal PT 2.5  0.14mm [2] ...2.5mm [2]  flexible<br>AWG24 – AWG14 rigid<br>0V stripping length  8 mm...10 mm<br>Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>Mass  approx. 52 g<br>0V view: X Approvals   UL 2367, File # E306740;<br>cULus508listed, File #<br>E492388<br>LINE+1 LINE+1 Schematic diagram<br>EM12-T00-200-LINE-40A<br>View without connector arm<br>contact via connector arm ADDR<br>COM<br>0 V<br>contact via connector arm LINE+1 0V<br>G<br>E<br>R<br>DC 24 V MA<br>N<br>Y<br>Entrance Module<br>80<br>EM12-T00-100-LINE-40A<br>G<br>E<br>R<br>DC 24 V MA<br>N<br>Y<br>Entrance Module<br>80<br>EM12-T00-200-LINE-40A<br>**----- End of picture text -----**<br>


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## **Accessories** es 

**Label** Marking area 6 x 10 mm **Part number Y 307 942 61** 

Note: Please use 2 strips per EM12, PM12 or REX12 module 

## **Application example: EM12-T … with REX12-TAx… and PM12-…** ~~Se~~ 

**==> picture [22 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
CPU<br>**----- End of picture text -----**<br>


**==> picture [434 x 264] intentionally omitted <==**

**----- Start of picture text -----**<br>
I1<br>AC<br>4230-T110 EM12-T01-001 REX12-TA1-107 REX12-TA2-107 REX12-TA2-107 PM12-T01-00-LOAD EM12-T00-100-LINE EM12-T00-000-GND PM12-T01-00-GND EM12-T00-300-GND<br>Schaltnetzteil DC24V DC24V DC24V DC24V DC24V DC24V DC24V DC24V DC24V<br>Power supply 40A 20A 40A 40A 20A 40A<br>le] 1 S 2A 6A<br>T 10A 2A 6A<br>|| Tey TL<br>4<br>to next control  to next control<br>— &) cabinet or  cabinet or<br>M M additional  additional<br>supply feed supply feed<br>7<br>**----- End of picture text -----**<br>


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