EM12D-TIO-000-DC24V-40A

**REX12D Electronic Circuit Protector** 

## **Description** 

The compact and flexible all-in-one solution REX consists of several perfectly matched components. It comprises the EM12D-T / EM12-T supply module for the plus and minus potential via a single or double channel REX12D-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. 

The requirements regarding modern machinery and equipment are constantly growing. System transparency, remote maintenance and remote access are getting more and more important in international competition. Early notification in the event of any disturbances and a fast response to current problems will increase system availability, save costs and improve the overall stability of the production process. 

E-T-A provides the ideal solution for machine and panel builders with the intelligent protection system comprising the REX12D circuit protector and the EM12D interface module. The system combines the well-proven quality of DC24V overcurrent protection with the communication options of the IO link system. It allows complete transparency of the DC24V power supply and provides all necessary information for a reliable production process in this plant sector. 

The new generation of REX12D electronic overcurrent protection consists of the intelligent EM12-TIO supply module and the single or double channel REX12D-Telectronic circuit protector which allows modular side-by-side mounting. The modules with a width of only 12.5 mm feature push-in technology including press release buttons and allow time-saving and maintenance-free wiring without tools. 

## **Benefits** Lo 

l Increases machine availability through high transparency and remote diagnosis 

- 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 

And what is more: no additional accessories are required when connecting the individual components electrically and mechanically. This helps save time and money! 

## **Features** Lo 

- l Control, diagnosis and monitoring via IO link l Combination of supply modules, overcurrent protection and power distribution 

- l Double channel selective load protection by means of electronic trip curve 

- l No accessories required for connecting the components 

- l Width per channel only 6.25 mm (2-channel) 

- l Fixed current ratings: 1 A, 2 A, 3 A, 4 A, 6 A, 8 A and 10 A 

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

- l Switching capacitive loads up to 20,000 µF 

- l Manual ON/OFF/reset momentary switch 

l Connection via push-in terminals including press release buttons 

## **Approval logos and markings** ee, NEC Class2 "AY .@). ROHS/REACA 

## **Data sheet** 

The current data sheet is available on our website: www.e-t-a.de/d751 

**www.e-t-a.de** 

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

**REX12D-TAx-xxx circuit protectors** REX12D-TA1-100-DC24V-xA 1-channel **REX12D-TA2-100-DC24V-xA/xA** 2-channel Operating voltage UB DC 24 V (18...30 V) Closed current I0 REX12D-TA1 1-channel in ON condition: typically   7 mA REX12D-TA2 2-channal in ON condition: typically 10 mA Reverse polarity protection yes Power failure buffering time up to 10 ms Current ratings IN fixed ratings: REX12D-TA1 8 A, 10 A REX12D-TA2 1 A/1 A, 2 A/2 A, 3 A/3 A, 4 A/4 A, 6 A/6 A Visual status indication green: - load circuit connected of operating condition by multicoloured green/orange LED: blinking: -  load current warning limit reached 50 % – 100 % 

orange: -  overload or short circuit until disconnection 

|ofoperating condition<br>by multicoloured<br>LED:|<br>green/orange<br>blinking: -  load current warning limit<br>reached 50 % – 100 %<br>orange: -  overload or short circuit until<br>disconnection|
|---|---|
||-  circuit protector was switched<br>off by the superordinate control|
||unit LED is permanently orange|
||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|
||OFF:<br>Device was switched off via ON/|
||OFF momentary switch, or due<br>to lacking operating voltage or<br>faulty initialisation of the circuit|
||protector|
|**Load circuit**<br>Load output<br>Load current –<br>warning limit (IWLimit)<br>hysteresis|power MOSFET switching output<br>(plus switching)<br>typically 0.5 – 1.0 x IN(parameterisable)<br>typically5%|
|Overload current|typically IOL: INx 1.05 tOL: 3s|
|disconnection (IOL)|typically IOL: INx 1.35 tOL: 0.5,5s|
|with trip times (tOL)<br>short circuit<br>trip time (tSC)|typically IOL: INx 2.00 tOL: 0.1s<br>typically IOL: INx 2.50 tOL: 0.012 s<br>typically at short circuit (ISC) tSC: 0.002 s1)<br>see time/current characteristic<br>1) depending on the power source|
||**Note:**Selection of current rating of the circuit protector|
||≤ ratingofpower supply|
|Influence of ambient|see temperature factor table|
|temperature on||
|overload disconnection||
|and load current – warninglimit||
|Continuous Current IC|typically 0.8 x IN|
||(Fail Safe Element isprotected byREX12)|
|Fail-safe element|IN: 1 A/1 A<br>fail-safe IN: 1 A / 1 A|
|(integral|IN: 2 A/2 A<br>fail-safe IN: 2 A / 2 A|
|blade fuse|IN: 3 A/3 A<br>fail-safe IN: 3.15 A / 3.15 A|
|adjusted to<br>related current rating IN)|IN: 3A/3A-CL2<br>fail-safe IN: 4 A / 4 A<br>IN: 4 A/4 A<br>fail-safe IN: 4 A / 4 A|
||IN: 4A/4A-CL2<br>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: 8 A<br>fail-safe IN: 8 A<br>IN: 10 A<br>fail-safe IN: 10 A|



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

||Voltage drop in load circuit at INand at IN70 % LINE+ and LOAD+|Voltage drop in load circuit at INand at IN70 % LINE+ and LOAD+|
|---|---|---|
||IN: 1 A<br>typically 180 mV<br>IN: 70 %<br>typically 125 mV<br>IN: 2 A<br>typically 110 mV<br>IN: 70 %<br>typically 80 mV||
||IN: 3 A<br>typically 120 mV<br>IN: 70 %<br>typically 85 mV||
||IN: 3A-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: 4A-CL2<br>typically 180 mV<br>IN: 70 %<br>typically 120 mV||
||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<br>Operating voltage<br>OFF at typically UB< 16.0 V<br>monitoring<br>ON at typically UB> 19 V<br>hysteresis typically 2 V<br>with regard to low voltage with automatic||
||Switch-on delay<br>- with power ON|ON and OFF switching<br>channel 1:<br>typically 100 ms<br>channel 2:<br>typically 200 ms|
||- when switching on via<br>ON/OFF momentary|channel 1:<br>typically 5 ms|
||switch or|channel 2:<br>typically 100 ms|
||- after|channel 1:<br>typically 5 ms|
||undervoltage|channel 2:<br>typically5 ms|
||Disconnection of load circuit -  manually on the device with the||
|||ON/OFF momentary switch|
|||- remote control via the superordinate|
|||control unit|
|||-  after an overload / short circuit discon-|
|||nection with storage (no automatic reset)|
|||- temporarily at undervoltage|
|||- at no operatingvoltage|
||Switch on of load circuit||
||- momentary switch ON/OFF  The circuit protector can be switched||
|||on by the superordinate control unit or|
|||otherwise directly on the device. These|
|||two options are linked with AND. Switch-|
|||on is only possible if switched on from|
|||both positions. If the circuit protector was|
|||switched off either by the control unit or|
|||by the momentary switch directly on the|
|||device, switch-on has to be effected also|
|||from the corresponding position.|
||-  Apply|For switch-on the device has to be supplied|
||operating voltage|with operating voltage. The device re-|
|||startswith thelaststored condition.|
||Reset function|A blocked load output (blocked by|
|||overload / short circuit) can be reset by|
|||the ON/OFF momentary switch or by the|
|||superordinate controlunit.|
||Leakage current in load|typically <1 mA|
||circuit inOFFcondition||
||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<br>several load outputs|not allowed|
||**Terminals**|**LOAD+**|
||Push-in terminal PT 2.5|0.14 mm2... 2.5 mm2, flexible|
|||AWG24 – AWG14 rigid|
||Strippinglength|8 mm ... 10 mm|
||Dimensions(w x h d)|12.5 x 98.5 x 80 mm|
||Mass||
||REX12D-TA1-xxx 1-channel approx. 58 g||
||REX12D-TA2-xxx 2-channel approx. 62g||



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

|**General data**<br>Housingmaterial|**REX / EM / PM**<br>moulded|
|---|---|
|Mounting<br>Ambient temperature|symmetrical rail to EN 60715-35x7.5<br>-25 °C...+60 °C (without condensation,<br>cf. EN 60204-1)|
|Storage temperature|-40 °C ... +70 °C|
|Mountingtemperature|+5° ... +60 °C|
|Humidity|96 hrs / 95 % RH/40 °C to IEC 60068-2-|
||78-Cab climate class 3K3 to EN 60721|
|Corrosion only PM<br>and EM accessories<br>Vibration|96hrs. in 5% salt mist to<br>IEC 60068-2-11 test Ka<br>3gtest to IEC 60068-2-6,test Fc|
|Degree of protection<br>operating area REX12|IEC 60529, DIN VDE 0470<br>IP30|
|terminal area<br>EM,PM:|IP20|
|EMC requirements|noise emission<br>EN 61000-6-3|
|(EMC directive,CE logo)|susceptibility:<br>EN 61000-6-2|
|Insulation co-ordination<br>(IEC 60934)|0.5 kV /pollution degree 2|
|Dielectric strength|max. DC 30 V(load circuit)|
|Insulation resistance|n/a, only electronic disconnection|
|(OFF condition)<br>Modules to be mounted side-by-side<br>REX12D-TA1-xxx 1-channel||
|REX12D-TA2-xxx 2-channel|max.16 channels|
|Conformity|CE marking|



## **Approvals and standards** 

|**Approval**<br>**authority**|**Standard**|**UL file**<br>**no.**|**Voltage**<br>**rating**|**Current**<br>**rating range**|
|---|---|---|---|---|
|UL|UL 2367|E306740|DC 24 V|1 A…10 A|
|UL|UL 1310<br>NEC Class2|E306740|DC 24 V|1 A, 2 A,<br>3 A, 4 A|
|UL|cULus508listed|E492388|DC 24 V|1 A…10 A|



PM and EM – accessories approvals see technical data of accessories 

## **Notes** 

- l The intelligent EM12D-TIO supply module is only meant for use with extra-low voltage (DC 24 V). 

- l Connection to a higher or not reliably disconnected voltage can cause hazardous conditions or damages. 

- l Only the intended circuit protectors must be used. 

- l The technical data of the circuit protectors used have to be observed. 

## **Ordering number code** 

## **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**||||||||||||||||
|||||**A**||1 load output terminal per channel, fixed current ratings xA<br>or xA/xA||||||||||||||
|||||||**Number of channels**||||||||||||||
|||||||**1**||1 channel||||||||||||
|||||||**2**||2 channels||||||||||||
|||||||||**Version**||||||||||||
|||||||||**1**||withoutphysical isolation||||||||||
||||||||||<br>|**Signal input**||||||||||
|||||||||||**0**||without signal input||||||||
|||||||||||||**Signal output**||||||||
|||||||||||||**0**||without signal output||||||
|||||||||||||||**Operating voltage**||||||
|||||||||||||||**DC 24 V**||voltage ratingDC 24 V||||
|||||||||||||||||**Current rating range**||||
|||||||||||||||||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>(onlyfor 3A and 4A versions)||
|||||||||||||||||||||
|**REX12D**||**-T**||**A**||**1 -**||**1**||**0**||**0**||**- DC24V**||**- 10A**||<br>example 1 channel||
|**REX12D**||**-T**||**A**||**2 -**||**1**||**0**||**0**||**- DC24V**||**- 4A/4A-CL2**example 2 channels||||



## **Overview of ordering number codes** 

|Supply<br>module|EM12D-TIO-000-DC24V-40A|
|---|---|
|Circuit<br>protectors:<br>1-channel|REX12D-TA1-100-DC24V-8A<br>REX12D-TA1-100-DC24V-10A|
|Protection<br>modules:<br>2-channel|REX12D-TA2-100-DC24V-1A/1A (Class2)<br>REX12D-TA2-100-DC24V-2A/2A (Class2)<br>REX12D-TA2-100-DC24V-3A/3A<br>REX12D-TA2-100-DC24V-3A/3A-CL2 (Class2)<br>REX12D-TA2-100-DC24V-4A/4A<br>REX12D-TA2-100-DC24V-4A/4A-CL2 (Class2)<br>REX12D-TA2-100-DC24V-6A/6A|
|Accessories||
|Supply<br>modules|EM12-T00-100-LINE-40A<br>EM12-T00-200-LINE-40A<br>EM12-T00-000-GND-40A<br>EM12-T00-300-GND-40A|
|Potential<br>modules|PM12-T01-00-LOAD-20A<br>PM12-T02-00-LOAD-20A<br>PM12-T03-00-GND-20A|



- l The entire power distribution system must only be installed by qualified personnel. 

- l Only after expert installation must the device be supplied with power. 

- l After tripping of the circuit protector and before reset, the cause of the failure (short circuit or overload) must be remedied. 

- l The national standards (e.g. for Germany DIN VDE 0100) have to be observed for installation and selection of feed and return cables. 

- l For convenient adjustment and configuration by means of projecting software a master data file (GSDML file) will be made available for downloading on the E-T-A homepage. 

- Please observe separate user manual of the EM12D-TIO. 

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**Dimensions with connection diagram: REX12D-TAx-xxx circuit protectors** 

**==> picture [249 x 265] intentionally omitted <==**

**----- Start of picture text -----**<br>
98.5<br>92<br>label e.g. from<br>Phoenix<br>Contact ZBF-12<br>12.5 contact<br>arm<br>REX12D- REX12D-<br>TA1-1xx TA2-1xx<br>DC24V DC24V<br>COM COM<br>7.5<br>xA<br>xA xA<br>2.1 2.1 | 2.2<br>LOAD + LOAD +<br>1-channel 2-channel<br>snap-on socket for<br>momentary switch rail EN 60715-35x7,5<br>for ON/OFF and<br>reset with integral<br>status indication<br>G<br>E<br>R<br>M<br>80 A<br>N<br>Y<br>installation  area operating  area<br>**----- End of picture text -----**<br>


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

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**----- 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>


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

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


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

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**----- 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   IKS<br>... times rated current trip curve REX12<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:** 

|**Temperature factor table:**|||||
|---|---|---|---|---|
|ambient temperature [°C]|0|10|23<br>40|50<br>60|
|temperature factor|1|1|1<br>0.95|0.90<br>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: www.e-t-a.de/ti_e). 

Note: 

With high temperatures, the load current warning threshold “warn limit typically 0.5 ... 1 x IN” will be  reduced in accordance with the temperature factor. 

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**REX12D Electronic Circuit Protector** 

## **Description – EM12D-T supply module** 

The EM12D-T supply module receives the DC 24 V supply voltage, e.g. from a switched mode power supply, and distributes it to the installed intelligent circuit protectors via the integral connector arm of the REX12D-T. The communication interface of the EM12D-T, which is designed as an IO link device, allows a great number of diagnosis and control commands to a superordinate IO link master of the control level. 

## **Communication interface** 

## Overview of commands: 

Writing/reading of configuration (parameters) l Current limit value (50 %...100 %) 

Reading of static product information 

- l Current ratings 

- l Product type 

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

|Operatingvoltage UB|DC 24 V(18...30 V)|
|---|---|
|Operatingcurrent IB|max. 40 A|
|Reversepolarity protectionyes||
|Quiescent current I0|typically20 mA|
|Insulation co-ordination<br>Power failure<br>bufferingtime<br>**Terminals**|0.5 kV /pollution degree 2<br>up10ms<br>**LINE+**|
|Push-in terminal PT 10|0.5 mm2... 10 mm2, flexible|
||AWG24 – AWG8 rigid|
|strippinglength|18 mm|
|**Terminals**|**0 V**|
|Push-in terminal PT 2.5|0.14 mm2... 2.5 mm2, flexible|
||AWG24 – AWG14 rigid|
|strippinglength|8 mm ... 10 mm|
|Dimensions(w x h x d)|12.5 x 98 x 80 mm|
|Mass|approx. 56g|
|Modules to be mounted side-by-side||
|REX12D-TA1 1-channel<br>REX12D-TA2 2-channel|max.16 channels|
|Visual status indication|green:<br>Faultless operation|
|ofoperating condition<br>via multicoloured|communication to IO link<br>master available|
|LED:||



green blinking: independent operation no communication to IO link master red: critical fault detected communication to IO link master not available 

orange:  non-critical fault detected communication to IO link master available 

orange blinking: uncritical fault detected communication to IO link master not available 

- l Serial number 

- l Hardware version 

- l Software version 

Reading of dynamic product information / measuring values 

- l Error memory 

- l Trip counter 

- l Reason of last trip 

- l Status / event of device 

- l Supply voltage: ACTUAL / MIN / MAX / MEDIUM VALUE 

- l Load voltage ACTUAL / MIN / MAX / MEDIUM VALUE l Load current 

Control commands 

- l switch on/off or reset load output 

- l reset error memory 

- l reset trip counter 

- l set parameters to factory setting 

## **Overview of ordering number codes** 

Supply module EM12D-TIO-000-DC24V-40A 

## **Ordering number code – EM12D** 

|**Type**|**Type**|||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|**EM12D**||supplymodule for REX12D,with PT connection technology||||||||||||||
|||**Mounting method**||||||||||||||
|||**T**||rail mounting||||||||||||
|||||**Version: Communication, interface**||||||||||||
|||||**IO**||IO link||||||||||
||||||**Additional functionality**<br>**0**without<br> **Signal input**<br>**0**<br>without signal input<br>**Signal output**<br>without signal output<br>**Operating voltage**<br>**DC 24 V**voltage ratingDC 24 V<br>**Current rating range**<br>**40 A**|**Additional functionality**||||||||||
|||||||||without||||||||
||||||||**Signal input**<br>**0**<br>without signal input<br>**Signal output**<br>without signal output<br>**Operating voltage**<br>**DC 24 V**voltage ratingDC 24 V<br>**Current rating range**<br>**40 A**|**Signal input**||||||||
|||||||||||without signal input||||||
|||||||||||**Signal output**||||||
|||||||||||without signal output||||||
|||||||||||||**Operating voltage**||||
|||||||||||||**DC 24 V**voltage ratingDC 24 V||||
|||||||||||||||**Current rating range**||
|||||||||||||||**40 A**||
|||||||||||||||||
|**EM12D -**||**T**||**01  -**||**0**||**0**||**0  -**||**DC 24 V   -**||**40 A**<br>orderingexample||



red blinking: bootloader mode active no communication to IO link master IO link connection X81 COM interface to IO link master terminal 1 IO link L+DC +24V connector 2: IO link C/Q connector 3: IO link L- When wiring and connecting to the point-to-point communication IO link, the installation and wiring regulations of the PROFIBUS-DP User Organisation (PNO) have to be observed. 

Push-in terminals PT xx connector, 3-pole (plugged on) 0.25 – 0.5 mm² stripping length 6 mm 

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## **Dimensions EM12D-TIO-xxx supply module** 

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**----- Start of picture text -----**<br>
connector<br>label e.g. from Phoenix Contact  EM12D-TIO-xxx 3-pole<br>ZBF-12 G E R M A N Y<br>LED CE/CM<br>L+C/QL-<br>X81<br>DC24V<br>40 A<br>OV<br>LINE +1<br>7,5<br>snap-on socket for<br>rail EN 60715-35x7.5 80<br>98 91,5<br>**----- End of picture text -----**<br>


**Schematic diagram EM12D-TIO-xxx with REX12D-xxx** 

**==> picture [249 x 128] intentionally omitted <==**

**----- Start of picture text -----**<br>
   max. 16 channels<br>EM12D-T REX12D-T<br>ADDR<br>IO-Link<br>COM<br>0 V<br>LINE+1<br>LOAD+  2.1    (2.2)<br>**----- End of picture text -----**<br>


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

**==> picture [249 x 208] intentionally omitted <==**

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


**Application example: EM12D-TIO-xxx with REX12D-xxx** 

**==> picture [248 x 229] intentionally omitted <==**

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

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


## **CAUTION** 

Electrostatically sensitive sub-assemblies can be destroyed by voltages far below the human perception threshold. These voltages already occur if you touch a component or electrical terminals of a sub-assembly without being electrostatically discharged. The damage of a sub-assembly caused by an overvoltage is often not immediately recognised, but will be noticed only after a longer operating time. 

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**----- 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<br>can be closed<br>Remove REX... from rail<br>Push REX<br>towards rail<br>Mount REX...<br>side-by-side with EM...<br>Unlatch with srewdriver,<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** 

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Open connector  Open connector<br>arm arm<br>Unlatch with screwdriver<br>**----- End of picture text -----**<br>


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Pull out at right<br>angles to the rail<br>Caution:<br>Assembly/disassembly only in<br>dead-voltage condition!<br>**----- End of picture text -----**<br>


## **Instructions for installation** 

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. 

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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## **Accessories** 

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EM12-T00-000-GND-40A supply module left – 0V – GND<br>**----- End of picture text -----**<br>


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view: X<br>12.4 98<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>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<br>**----- End of picture text -----**<br>


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Technical data<br>Please observe general data of REX / EM / PM<br>Operating voltage UB 0 V – DC 24 V (0 ... 30 V)<br>Operating current IB max. load 40 A<br>Line terminal  0 V – GND<br>Push-in terminal PT 10  0.5 mm [2]  ... 10 mm [2] , flexible<br>AWG24 – AWG8 rigid<br>Stripping length  18 mm<br>Dimensions (w x h x d) 12.5 x 98 x 80 mm<br>Mass  approx. 40 g<br>Approvals  UL 1059, File # E335289<br>**----- End of picture text -----**<br>


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


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


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


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view: X<br>Technical data<br>12.5 Please observe general data of REX / EM / PM<br>Operating voltage UB  0 V – DC 24 V (0 ... 30 V)<br>Operating current IB max. load 20 A<br>PM12-T03 3.5  3.10 Line terminal  0 V – GND<br>-00-GND Push-in terminal PT 2.5  0.14 mm [2]  ... 2.5 mm [2] , flexible<br>AWG24 – AWG14 rigid<br>DC 0-24 V 3.4  3.9 Stripping length  8 mm ... 10 mm<br>20 A Dimensions (w x h x d) 12.5 x 98 x 80 mm<br>Mass  approx. 52 g<br>3.5  3.10<br>3.3  3.8 Approvals  UL 1059, File # E335289<br>3.4  3.9<br>3.2  3.7 Schematic diagram<br>3.3  3.8<br>PM12-T03-00-GND-20A<br>3.2  3.7 view: X 3.1  3.6 3.5 3.10<br>3.1  3.6 3.4 3.9<br>0 V 3.3 3.8<br>0 V 3.2 3.7<br>View without connector arm 3.1 3.6<br>0 V<br>GND – coding notch contact via connector arm<br>max. 10 A / terminal<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>80 PM12-T03-00-GND-20A Potential Module<br>**----- End of picture text -----**<br>


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## **Accessories** 

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EM12-T00-300-GND-40A  supply module centre/right – 0V – GND<br>view: X<br>Technical data<br>12.5<br>Please observe general data of REX / EM / PM<br>Operating voltage UB 0 V – DC 24 V (0 ... 30 V)<br>Operating current IB max. load 40 A<br>EM12-T00-300-GND Line terminal  0 V – GND<br>Push-in terminal PT 10  0.5 mm [2]  ... 10 mm [2] , flexible<br>AWG24 – AWG8 rigid<br>DC 0-24 V20 A Stripping length  18 mm<br>Dimensions (w x h x d) 12.5 x 98 x 80 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<br>EM12-T00-300-GND-40A<br>**----- End of picture text -----**<br>


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## **Accessories** 

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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>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>Terminals  LOAD+<br>DC 24 V<br>20 A 2.4  2.9 Push-in terminal PT 2.5  AWG24 – AWG14 rigid 0.14 mm [2]  ... 2.5 mm [2] , flexible<br>2.5  2.10 Stripping length  8 mm ... 10 mm<br>Dimensions (w x h x d) 12.5 x 98 x 80 mm<br>2.3  2.8<br>2.4  2.9 Mass  approx. 52 g<br>Approvals  UL 1059, File # E335289<br>2.3  2.8<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<br>Please observe general data of REX / EM / PM<br>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<br>Terminals  LOAD+<br>2.4  2.9 Push-in terminal PT 2.5  0.14 mm [2]  ... 2.5 mm [2] , flexible<br>DC 24 V20 A Stripping length  AWG24 – AWG14 rigid 8 mm ... 10 mm<br>2.5  2.10 Dimensions (w x h x d) 12.5 x 98 x 80 mm<br>2.3  2.8 Mass  approx. 52 g<br>2.4  2.9 Approvals  UL 1059, File # E335289<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<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<br>PM12-T02-00-LOAD-20A<br>**----- End of picture text -----**<br>


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## **Accessories** 

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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>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>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 98 x 80 mm<br>0V Mass  approx. 52 g<br>view: X Approvals  UL 1059, File # E335289<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 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>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 98 x 80 mm<br>Mass  approx. 52 g<br>0V Approvals   UL 2367, File # E306740;<br>view: X cULus508listed, File #<br>E492388; pending<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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## **Application example: EM12-T … with REX12-TAx… and PM12-…** 

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CPU 4\|<br>I1<br>AC<br>T 4230-T110 Schaltnetzteil a EM12-T01-001DC24V REX12-TA1-107DC24V ee REX12-TA2-107DC24V REX12-TA2-107DC24V ee PM12-T01-00-LOADDC24V eee EM12-T00-100-LINEDC24V eee Ee EM12-T00-000-GNDDC24V PM12-T01-00-GNDDC24V EM12-T00-300-GNDDC24V eee<br>Power supply 40A 20A 40A 40A 20A 40A<br>2A 6A<br>10A 2A 6A<br>ct<br>fT TTUr T<br>|<br>4<br>&) to next control  to next control<br>cabinet or  cabinet or<br>C) M C) M HU Uo additional  additional<br>supply feed supply feed<br>HUH<br>7<br>**----- End of picture text -----**<br>


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