EM12D-TMB-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 REX12D protection system and the EM12D interface module. The system combines the well-proven quality of DC 24 V overcurrent protection with the communication options of the IO link and Modbus RTU system. It allows complete transparency of the DC24V power supply and provides all necessary information for a reliable production process in this plant sector. 

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

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

The 12.5 mm wide modules feature a modular design with push-in technology for wiring with press release buttons and allow no-tool time-saving and maintenance-free wiring. 

## **Features Benefits** ee eee 

- l Control, diagnosis and monitoring via IO link and Modbus RTU 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 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 

- 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 

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 

- l Reduces storage costs because only one product is required for all current ratings 

## **Approvals Data sheet** ee eee 

The current data sheet is available on our website: www.e-t-a.de/e751 

NEC Class2 

## **Compliances** Lo 

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**REX12D Electronic Circuit Protector** 

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

## **REX12D-Txx-xxx circuit protectors REX12D-TA1-100-DC24V-xA** 1-channel **REX12D-TA2-100-DC24V-xA/xA** 2-channel **REX12D-TE2-100-DC24V-xA-xA** 2-channel 

|**REX12D-TE2-100-DC24V-xA-xA**<br>2-channel|**REX12D-TE2-100-DC24V-xA-xA**<br>2-channel|
|---|---|
|The REX12D-TAx is operated in the COM mode with EM12D-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>COM mode.<br>Operatingvoltage UB<br>DC 24 V(18...30 V)||
|Closed current I0||
|REX12D-TA1 1-channel<br>in ON condition: typically   7 mA<br>REX12D-TA2 2-channel<br>in ON condition: typically 10 mA<br>REX12D-TE2  1A-4A  2-channel in ON condition: typically   9 mA<br>REX12D-TE2 1A-10A 2-channel in ON condition: typically12 mA<br>Reversepolarity protection Yes<br>Power failure<br>bufferingtime<br>upto 10 ms||
|Rated current IN|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|
|REX12D-TE2<br>Visual status indication<br>ofoperating condition|1 A-4 A, 1 A -10 A   condition upon<br>delivery: max. current rating<br>green:<br>- load circuit connected|
|by multicoloured<br>LED:|green/orange<br>blinking: - load current warning limit<br>reached 50 % – 100 %|
||orange: -  overload or short circuit until|
||disconnection|
||- circuit protector was switched<br>off by the superordinate control<br>unit LED is permanently orange|
||red:<br>-  after disconnection due to|
||overload or short circuit|
||-  after undervoltage release of<br>operating voltage in ON<br>condition with autoreset|
||OFF<br>Device was switched off via ON/<br>OFF momentary switch, or due<br>to lacking operating voltage or<br>faulty initialisation of the circuit<br>protector|
|**Load circuit**||
|Load output|power MOSFET switching output<br>(plus switching)|
|Load current - warning limit<br>(IWLimit)<br>hysteresis<br>Overload current<br>disconnection (IOL)<br>with trip times (tOL)|typically 0.5 - 1.0 x IN(parameterisable)<br>typically5%<br>typically IOL: INx 1.05 tOL: 3s<br>typically IOL: INx 1.35 tOL: 0.5,5s<br>typically IOL: INx 2.00 tOL: 0.1s<br>typically IOL: INx 2.50 tOL: 0.012 s|
|short circuit<br>triptime(tSC)|typically at short circuit (ISC) tSC: 0.002 s2)<br>see time/current characteristic|
|Influence of ambient<br>see temperature factor table<br>temperature on<br>overload disconnection<br>and load current - warninglimit<br>Continuous Current IC<br>typically 0.8 x IN<br>(Fail Safe Element isprotected byREX12)<br>2)  depending on power source||



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

||Fail-safe element<br>IN: 1 A/1 A (CL2) fail-safe IN: 1 A / 1 A<br>(integral<br>IN: 2 A/2 A (CL2) fail-safe IN: 2 A / 2 A<br>blade fuse<br>IN: 3 A/3 A<br>fail-safe IN: 3.15 A / 3.15 A<br>adjusted to<br>IN: 3A/3A-CL2<br>fail-safe IN: 4 A / 4 A|Fail-safe element<br>IN: 1 A/1 A (CL2) fail-safe IN: 1 A / 1 A<br>(integral<br>IN: 2 A/2 A (CL2) fail-safe IN: 2 A / 2 A<br>blade fuse<br>IN: 3 A/3 A<br>fail-safe IN: 3.15 A / 3.15 A<br>adjusted to<br>IN: 3A/3A-CL2<br>fail-safe IN: 4 A / 4 A|
|---|---|---|
||related current rating IN)<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|
|||IN: 6 A/6 A<br>fail-safe IN: 6.3 A / 6.3 A|
|||IN: 8 A<br>fail-safe IN: 8 A|
|||IN: 10 A<br>fail-safe IN: 10 A|
|||IN: 1 A-4 A-CL2 fail-safe IN: 4 A|
|||IN: 1 A-10 A<br>fail-safe IN: 16A|
||Voltage drop in|load circuit at INand at IN70% REX12D-TAx|
||between LINE+|and LOAD+|
||IN: 1 A (CL2)|typically 180 mV<br>IN: 70 %<br>typically 125 mV|
||IN: 2 A (CL2)|typically 110 mV<br>IN: 70 %<br>typically 80 mV|
||IN: 3 A|typically 120 mV<br>IN: 70 %<br>typically 85 mV|
||IN: 3 A-CL2|typically 130 mV<br>IN: 70 %<br>typically 90 mV|
||IN: 4 A|typically 115 mV<br>IN: 70 %<br>typically 80 mV|
||IN: 4 A-CL2|typically 180 mV<br>IN: 70 %<br>typically 120 mV|
||IN: 6 A|typically 170 mV<br>IN: 70 %<br>typically 110 mV|
||IN: 8 A|typically 160 mV<br>IN: 70 %<br>typically 105 mV|
||IN: 10 A|typically180 mV<br>IN: 70%<br>typically120 mV|
||Voltage drop in|load circuit at INand at IN70% REX12D-TEx|
||between LINE+|and LOAD+|
||REX12D-TE2-100-DC24V-1A-4A-CL2||
||IN: 1A-CL2|typically 50 mV<br>IN: 70 %<br>typically 42 mV|
||IN: 2A-CL2|typically 90 mV<br>IN: 70%<br>typically 70 mV|
||IN: 3A-CL2|typically 135 mV<br>IN: 70 %<br>typically 95 mV|
||IN: 4A-CL2|typically 180 mV<br>IN: 70 %<br>typically 120 mV|
||Voltage drop in|load circuit at INand at IN70 % for|
||REX12D-TEx between LINE+ and LOAD+||
||REX12D-TE2-100-DC24V-1A-10A||
||IN: 1 A|typically 30 mV<br>IN: 70 %<br>typically 28 mV|
||IN: 2 A|typically 39 mV<br>IN: 70 %<br>typically 34 mV|
||IN: 3 A|typically 48 mV<br>IN: 70 %<br>typically 40 mV|
||IN: 4 A|typically 57 mV<br>IN: 70 %<br>typically 46 mV|
||IN: 5 A|typically 66 mV<br>IN: 70 %<br>typically 52 mV|
||IN: 6 A|typically 74 mV<br>IN: 70 %<br>typically 59 mV|
||IN: 7 A|typically 83 mV<br>IN: 70 %<br>typically 65 mV|
||IN: 8 A|typically 92 mV<br>IN: 70 %<br>typically 71 mV|
||IN: 9 A|typically 101 mV<br>IN: 70 %<br>typically 77 mV|
||IN: 10 A|typically110 mV<br>IN: 70%<br>typically83 mV|
||Operating voltage<br>OFF at typically UB< 16.0 V||
||monitoring|ON at typically UB> 19 V|
||with regard to low voltage with automatic ON and OFF switching||
||ON delay||
||- with power ON<br>channel 1: typically 100 ms (REX12D-TAx)||
|||channel 2:  typically 200 ms (REX12D-TAx)|
|||channel 1:  typically 1,500 ms (REX12D-TE2,|
|||depending on the slot)|
|||channel 2:  typically 1,600 ms (REX12D-TE2,|
|||depending on the slot)|
||- when switching on by<br>channel 1:<br>typically 5 ms||
||means ON/OFF button  channel 2:<br>typically 100 ms||
||or||
||- after|channel 1:<br>typically 5 ms|
||undervoltage<br>channel 2:<br>typically5 ms<br>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|
|||disconnection with storage|
|||(no automatic reset)|
|||- temporarily at undervoltage|
|||- at no operatingvoltage|



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**REX12D Electronic Circuit Protector** 

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

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. Switchon 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-starts with the last stored condition. 

Enquire Enquiry of currently adjusted adjusted current rating current rating is, independent of the with REX12D-TE2 operating mode (COM or standard), possible for each channel directly on the REX12D-TE2 

Enquiry mode is started by pushing the 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 ORANGE in a puls/break ratio of 1/2 with a frequency of 1 Hz to indicate the adjusted current value. When the adjusted current 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 by pressing the button. Visual indication will now show again the current operating condition. 

The enquiry mode is possible in all operating conditions (ON, OFF, UNDERVOLTAGE and TRIPPED). 

Adjustment of the current rating of the REX12D-TE2 is possible in the COM mode via the corresponding communication interface. 

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

Stripping length 8 mm...10 mm Dimensions (w x h x d) 12.5 x 80 x 98.5 mm Mass 

REX12D-TA1-xxx 1-channel approx. 58 g REX12D-Tx2-xxx 2-channel approx. 62 g 

|**General data REX / EM / PM**|**General data REX / EM / PM**|
|---|---|
|Housingmaterial|moulded|
|Mounting<br>Ambient temperature<br>Storage temperature|symmetrical rail to EN 60715-35x7.5<br>-25 °C...+60 °C (without condensation, cf.<br>EN 60204-1)<br>-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|
|Altitude|2,000 m above sea level|
||3,000 m above sea level up to +55 °C|
||4,000 m above sea level upto +50 °C|
|Operationpressure<br>Corrosion only PM<br>and EM accessories|4 bar above atmosphericpressure<br>96 hrs. in 5 % salt mist to<br>IEC 60068-2-11 test Ka|
|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<br>(EMC directive,CE logo)susce<br>Insulation co-ordination<br>(IEC 60934)<br>Dielectric strength|noise emission<br>EN 61000-6-3<br>susceptibility<br>EN 61000-6-2<br>0.5 kV /pollution degree 2<br>max. DC 30 V(load circuit)|
|Insulation resistance|n/a, only electronic disconnection|
|(OFF condition)||
|Conformity|CE marking|



Go to video **Mounting and operation:** 

Os A oypes oa 

Reset function a blocked load output (blocked by overload / short circuit) can be reset by the ON/OFF momentary switch or by the superordinate control unit. Leakage current in load typically <1 mA circuit in OFF condition 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 (rating according to load) Parallel connection of not allowed several load outputs **Terminals LOAD+** Push-in terminal PT 2.5 0.14 mm[2] ... 2.5 mm[2] , flexible AWG24 – AWG14 rigid 

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**REX12D Electronic Circuit Protector** 

## **Notes** 

- l The intelligent EM12D-T 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. 

- 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-T. 

## **Approvals and standards** 

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



## **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||||||||||||||
|||||**E**||1 load output terminal per channel, variable current ratings<br>xA/xA,adjustable standard and COM mode||||||||||||||
|||||||**Number of  channels**||||||||||||||
|||||||**1**||1 channel||||||||||||
|||||||**2**||2 channels||||||||||||
|||||||||**Version**||||||||||||
|||||||||**1**||withoutphysical isolation||||||||||
||||||||||<br> <br>|**Signal input**||||||||||
|||||||||||**0**||without signal input||||||||
|||||||||||||**Signal output**||||||||
|||||||||||||**0**||without signal output||||||
|||||||||||||||**Operating voltage**||||||
|||||||||||||||**DC 24 V**||voltage ratingDC 24 V||||
|||||||||||||||||**Current rating**||||
|||||||||||||||||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<br>||A<br>(only2 channels)<br> <br>||
|||||||||||||||||4 A/4||A<br>(only2 channels)||
|||||||||||||||||6 A/6||A<br>(only2 channels)||
|||||||||||||||||1 A -||4 A(nonly2 channels)||
|||||||||||||||||1 A –||10 A(only2 channels)||
|||||||||||||||||||**Approval**||
|||||||||||||||||||CL2 Class2<br>only 3 A, 4 A variants and<br>1 A - 4 A variants||
|||||||||||||||||||||
|**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||||
|**REX12D**||**-T**||**E**||**2 -**||**1**||**0**||**0**||**- DC24V**||**- 1 A-10 A     example variable**<br>**current ratings**||||



PM and EM – accessories approvals see technical data of accessories 

## **Overview of ordering number codes** 

|Supply<br>module|EM12D-TIO-000-DC24V-40A<br>EM12D-TMB-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|
|Protection<br>modules:<br>2-channel,<br>adjustable|REX12D-TE2-100-DC24V-1A-4A-CL2 (Class2)<br>REX12D-TE2-100-DC24V-1A-10A|
|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|



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## **Dimensions with connection diagram: REX12D-Txx-xxx circuit protectors** 

**==> picture [511 x 270] intentionally omitted <==**

**----- Start of picture text -----**<br>
98.5<br>92<br>contact<br>12.5<br>arm<br>REX12D- REX12D- REX12D- REX12D-<br>TE2-1xx TE2-1xx TA2-1xx TA1-1xx<br>label e.g. from<br>PhoenixContact ZBF-12 DC24V10A9A8A7A6A5A4A3A2A1A Class 2DC24V4A3A2A1A DC24VCOM DC24VCOM 7.5<br>1-10A 1-4A xA<br>button for ON/OFF<br>or reset with  1-10A 1-4A xA xA<br>integral status<br>indication 2.1 2.2 2.1 2.2 2.1 2.2 2.1<br>LOAD + LOAD + LOAD + LOAD +<br>2-channel 2-channel 2-channel 1-channel installation  operating<br>snap-on socket for area area<br>rail EN 60715-35x7,5<br>G<br>E<br>R<br>M<br>80 AN<br>Y<br>**----- End of picture text -----**<br>


## **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>


## **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>


## **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 0.5 ... 1 x IN” will be reduced in accordance with the temperature factor. 

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

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

**==> picture [249 x 184] 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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## **Description – EM12D-Txx 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/Modbus RTU device, allows a great number of diagnosis and control commands to a superordinate IO link/Modbus RTU master of the control level. 

## **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|0.5 kV /pollution degree 2|
|Power failure||
|bufferingtime|up10ms|
|**Screw terminals**<br>Push-in terminal PT 10<br>strippinglength|**LINE+**<br>0.5 mm2... 10 mm2, flexible<br>AWG24 – AWG8 rigid<br>18 mm|
|**Screw terminals**|**0 V**|
|Push-in terminal PT 2.5|0.14 mm2... 2.5 mm2, flexible|
|strippinglength|AWG24 – AWG14 rigid<br>8 mm ... 10 mm|
|Dimensions(w x h x d)|12.5 x 80 x 98 mm|
|Mass|approx. 56g|
|Modules to be mounted<br>REX12D-TA1 1-channel|side-by-side|
|REX12D-TA2 2-channel||
|REX12D-TE2 2-channel|max.16 channels|
|Visual status indication<br>ofoperating condition<br>/ via multicoloured|green:<br>faultless operation<br>communication to IO link/<br>Modbus master available|
|LED:||
||green|
||blinking: independent operation|
||no communication to IO link/|
||Modbus master|
||red:<br>critical fault detected<br>communication to IO link/|
||Modbus master not available|
||orange:  non-critical fault detected|
||communication to IO link/<br>Modbus master available|
||orange|
||blinking: uncritical fault detected<br>communication to IO link/|
||Modbus master not available<br>red<br>blinking: bootloader mode active<br>no communication to IO link/<br>Modbus master|
|IO link connection<br>X81 COM interface to IO link master<br>terminal 1<br>IO link<br>L+ DC +24V<br>connector 2:<br>IO link<br>C/Q<br>connector 3:<br>IO link<br>L-<br>When wiring and connecting to the point-to-point communication IO<br>link, the installation and wiring regulations of the PROFIBUS-DP User<br>Organisation (PNO) have to be observed.||
|Push-in terminals PT xx||
|connector, 3-pole (plugged on)<br>0.25 – 0.5 mm²||
|strippinglength|6 mm|



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

|**Technical data  (Tamb = +23 °C, UB = DC 24 V)**|**Technical data  (Tamb = +23 °C, UB = DC 24 V)**|**Technical data  (Tamb = +23 °C, UB = DC 24 V)**|
|---|---|---|
|Modbus connection with Modbus Master/other devices (X81/ X82)|||
|X81 COM:|Connection with Modbus|Master/|
|X82 COM:|other Modbus devices<br>connector 1:<br>MB-A<br>connector 2:<br>MB-B<br>connector 3:<br>GND<br>Connection with Modbus<br>other Modbus devices|Master/|
||connector 1:<br>MB-A||
||connector 2:<br>MB-B||
||connector 3:<br>GND||
|terminals:|connectors, 3-pin (plugged on)||
||cable cross section||
||flexible with wire end ferrule||
||(without plastic sleeve)|0.25 – 0.5 mm²|
||Strippinglength|6 mm|



## **IO link/Modbus – communication interface** 

Overview of commands: 

Writing/reading of configuration (parameters) 

l Current limit value (50 %...100 %) l Current rating (1 A–10 A) 

Reading of static product information 

- l Current rating 

- l Product type 

- 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 (IO link) EM12D-TMB-000-DC24V-40A (Modbus-RTU) 

## **Ordering number code – EM12D** 

## **Type** 

**EM12D** supply module for REX12D, 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**|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|||**T**||rail mounting|||||||||||
|||||**Version: Communication, interface**|||||||||||
|||||**IO**||IO link|||||||||
|||||**MB**||Modbus|||||||||
|||||||**Additional functionality**|||||||||
|||||||**0**without|||||||||
|||||||||**Signal input**|||||||
|||||||||**0**without signal input|||||||
|||||||||<br>|**Signal output**||||||
||||||||||without signal output||||||
||||||||||||**Operating voltage**||||
||||||||||||**DC 24 V**||voltage ratingDC 24 V||
||||||||||||||**Current rating**||
||||||||||||||**40 A**||
||||||||||||||||
|**EM12D -**||**T**||**IO  -**||**0**||**0**|**0  -**||**DC 24 V   -**||**40 A**<br>orderingexample||



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**REX12D Electronic Circuit Protector** 

**Dimensions with connection diagram: EM12D-TIO-xxx supply module (IO link)** 

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

**==> picture [227 x 191] intentionally omitted <==**

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connector  12.4<br>j onm G E R M A N YEntrance Module  aXS 3-pole Label, e.g. from Phoenix Contact<br>EM12D-TIO-000-DC24V-40A view X ZBF12<br>status indication<br>ontrotPiex: @10h \ C/QL+ LED CE/CM<br>L-<br>X81 IO link master<br>X 81 COM<br>E-T-AD-90518 ALTDORF Made in Germany xxxx · xxxx  x 0VDC24V40A interfacebushing 1 (L+)bushing (C/Q)bushing 3 (L-)<br>0V DC<br>80<br>ind LINE +1 LINE +1<br>DC24V - 40A<br>date code<br>device ID of unit<br>revision index of A<br>firmware<br>snap-in socket<br>for rail mounting<br>EN 60715-35x7.5<br>98 91.5<br>7.5<br>**----- End of picture text -----**<br>


**Dimensions with connection diagram: EM12D-TMB-xxx supply module (Modbus RTU)** 

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

**==> picture [239 x 191] intentionally omitted <==**

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connector  12.4<br>G E R M A N Y 3-pole label, e.g. from<br>Entrance Module  Phoenix Contact<br>EM12D-TMB-000-DC24V-40AModbus-RTU view X ZBF12<br>ModbusRTU status indication<br>BA LED CE/CM<br>G<br>N<br>aa N — D X81 Modbus RTU<br>A<br>B X81/X82 COM<br>G<br>E-T-AD-90518 ALTDORF Made in Germany xxxx · xxxx  x ND X82 interface RS485communication Acommunication B<br>0V ©) communication GND<br>,<br>NI<br>D 0V DC<br>\ | 80<br>LINE +1 LINE +1<br>DC24V - 40A<br>date code<br>device ID of unit<br>revision index of<br>firmware<br>snap-in socket<br>for rail mounting<br>EN 60715-35x7.5<br>98 91.5<br>7.5<br>**----- End of picture text -----**<br>


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

**==> picture [110 x 94] intentionally omitted <==**

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


**==> picture [56 x 20] intentionally omitted <==**

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


## **CAUTION** 

## **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 assembly / disassembly on 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 239] 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>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** 

**==> picture [212 x 8] intentionally omitted <==**

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


**==> picture [449 x 580] intentionally omitted <==**

**----- Start of picture text -----**<br>
view: X Technical data<br>12.4 98 Please observe general data of REX / EM / PM<br>4.88 38.6 Operating voltage UB  0 V – DC 24 V (0 ... 30 V)<br>Operating current IB max. load 40 A<br>EM12-T00 line terminal  0 V – GND<br>-000-GND<br>Push-in terminal PT 10  0.5 mm [2]  ... 10 mm [2] , flexible<br>AWG24 – AWG8 rigid<br>DC 0-24 V stripping length  18 mm<br>40 A Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>Mass  approx. 40 g<br>Approvals  UL 1059, File # E335289<br>Schematic diagram<br>EM12-T00-000-GND-40A<br>view: X<br>0 V EM12-T PM12-T<br>0 V -GND- EM12-T<br>-GND-<br>GND – coding notch contact via connector arm<br>0 V<br>PM12-T03-00-GND-20A potential module – GND (10-way)<br>view: X Technical data<br>Please observe general data of REX / EM / PM<br>Operating voltage UB  0 V – DC 24 V (0 ... 30 V)<br>12.5<br>4.92 Operating current IB max. load 20 A<br>line terminal  0 V – GND<br>Push-in terminal PT 2.5  0.14 mm [2]  ... 2.5 mm [2] , flexible<br>PM12-T03 3.5  3.10 AWG24 – AWG14 rigid<br>-00-GND stripping length  8 mm ... 10 mm<br>Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>DC 0-24 V 3.4  3.9 Mass  approx. 52 g<br>20 A Approvals  UL 1059, File # E335289<br>3.5  3.10<br>3.3  3.8<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>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 <==**

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


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## **Accessories** 

**==> picture [512 x 310] intentionally omitted <==**

**----- 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 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 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 [512 x 693] 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>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-T01-00-LOAD Insulation co-ordination  0.8 kV / pollution degree 2<br>2.5  2.10 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>2.5  2.10 Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>Mass  approx. 52 g<br>2.4  2.9 2.3  2.8 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>Please observe general data of REX / EM / PM<br>12.5<br>Operating voltage UB DC 24 V (18...30 V)<br>4.92<br>Operating current IB max. load 20 A<br>Insulation co-ordination  0.8 kV / pollution degree 2<br>PM12-T02 2.5  2.10 Screw terminals  LOAD+<br>-00-LOAD Push-in terminal PT 2.5  0.14 mm [2]  ... 2.5 mm [2] , flexible<br>AWG24 – AWG14 rigid<br>2.4  2.9 stripping length  8 mm ... 10 mm<br>DC 24 V<br>20 A Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>Mass  approx. 52 g<br>2.5  2.10<br>2.3  2.8 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 [511 x 693] intentionally omitted <==**

**----- Start of picture text -----**<br>
EM12-T00-100-LINE-40A supply module centre/right – LINE, LINE connected<br>view: X 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>-100-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>stripping length  8 mm ... 10 mm<br>Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>0V Mass  approx. 52 g<br>Approvals  UL 1059, File # E335289<br>0V<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>Please observe general data of REX / EM / PM<br>12.5 Operating voltage UB DC 24 V (18...30 V)<br>Operating current IB max. load 40 A<br>Insulation co-ordination  0.8 kV / pollution degree 2<br>EM12-T00 Screw terminals  LINE+1<br>-200-LINE Push-in terminal PT 10  0.5 mm [2]  ... 10 mm [2] , flexible<br>AWG24 – AWG8 rigid<br>stripping length  18 mm<br>DC 24 V<br>40 A Screw terminals  0 V<br>Push-in terminal PT 2.5  0.14mm [2]  ... 2.5mm [2] , flexible<br>AWG24 – AWG14 rigid<br>stripping length  8 mm ... 10 mm<br>Dimensions (w x h x d) 12.5 x 80 x 98 mm<br>0V Mass  approx. 52 g<br>Approvals   UL 2367, File # E306740;<br>cULus508listed, File #<br>0V E492388; pending<br>view: X<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** Lo 

**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-…** ~~Lo~~ 

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CPU<br>Master<br>Port1<br>AC<br>=<br>4230-T110 EM12D-TIO-000 REX12D-TA1-100 REX12D-TA2-100 REX12D-TA2-100 PM12-T01-00-LOAD EM12-T00-100-LINE EM12-T00-000-GND PM12-T03-00-GND EM12-T00-300-GND<br>Power supply DC24V DC24V DC24V DC24V DC24V DC24V DC24V DC24V<br>COM COM COM 20A 40A 40A 20A 40A<br>DC24V<br>2A 6A<br>40A<br>10A 2A 6A<br>|<br>u e TT<br>|<br>4<br>to next control  to next control<br>M @9 M 1 i ul cabinet or additional  cabinet or additional<br>supply feed supply feed<br>7<br>**----- End of picture text -----**<br>


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