0903026

## **EC-E...** 

## **Electronic miniature circuit-breaker** 

## **CLIPLINE** 

Data sheet 103906_en_01 

## © PHOENIX CONTACT - 09/2009 

## **1 Description** 

The EC-E... electronic miniature circuit-breaker selectively protects all 24 V DC load circuits on power supply units. A combination of active electronic current limitation for short circuits and an overload shutdown function from 1.1 x IN upwards ensures that the miniature circuit-breaker can react to overloads faster than the power supply unit. In this case, the residual current is constantly restricted to 1.3 - 1.8 times the nominal current. 

This enables capacitive loads of up to 20, 000 µF to be switched on; loads are shut down only in the event of an overload or short circuit. 

Once an overload or short circuit has been detected in the load circuit, the load output of the EC-E... is blocked. The current flow in the faulty circuit is interrupted. The EC-E... and, therefore, the current circuit can be activated again using the electronic reset input or manually on the device using the slide switch. 

Wiring and signaling tasks can be implemented easily using power rails and plug-in bridges. 

A multi-color LED and the integrated status output display the operating and fault state. 

The miniature circuit-breaker has a design width of 12.5 mm and can be snapped onto NS 35 DIN rails using a modular approach. It is equipped with screw connections. 

## **1.1 Properties** 

- Selective load protection, electronic shutdown characteristic curve 

- Active current limitation when switching on capacitive loads of up to 20, 000 µF and in the event of an overload/short circuit 

- Nominal current can be selected in fixed current strengths from 0.5 A ... 12 A 

- Safe overload shutdown from 1.1 x IN upwards, even with long load lines or small cable cross-sections 

- Manual on/off switch (S1) 

- Clear signaling by means of LED, SF status output, or F alarm output (signal contact), (can be combined) 

- RE electronic reset input (option) 

- Integrated fail-safe element, adapted to nominal current 

- Straightforward wiring using LINE+ power rail and 0 V, as well as signal rails and signal bridges 

**NOTE:** Make sure that you adapt the cable cross-section of the relevant load circuit to the nominal current of the EC-E... being used. Take special precautions in the system or machine to eliminate the possibility of system parts restarting (in accordance with the Machinery Directive 2006/42/EC and EN 60204-1). In the event of a fault (short circuit/ overload), the EC-E... shuts down the load circuit electronically. : ~~ee~~ Make sure you always use the latest documentation. It can be downloaded at www.phoenixcontact.net/download. ~~Ge~~ 

This data sheet is valid for all products listed on the following page: ~~Ge)~~ 

**EC-E...** 

## **2 Ordering data** 

|**Electronic miniature circuit-breakers**||||||
|---|---|---|---|---|---|
|**Description**||**Type**|**Order No.**|**Pcs./Pkt.**||
||Nominal|||||
||current|||||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|0.5 A|EC-E1 0.5 A|0903022|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|1 A|EC-E1 1.0 A|0903023|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|2 A|EC-E1 2.0 A|0903024|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|3 A|EC-E1 3.0 A|0903025|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|4 A|EC-E1 4.0 A|0903026|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|6 A|EC-E1 6.0 A|0903028|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|8 A|EC-E1 8.0 A|0903029|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|10 A|EC-E1 10 A|0903030|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/O contact|12 A|EC-E1 12 A|0903031|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|0.5 A|EC-E4 0.5 A|0903040|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|1 A|EC-E4 1.0 A|0903032|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|2 A|EC-E4 2.0 A|0903033|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|3 A|EC-E4 3.0 A|0903034|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|4 A|EC-E4 4.0 A|0903035|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|6 A|EC-E4 6.0 A|0903036|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|8 A|EC-E4 8.0 A|0903037|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|10 A|EC-E4 10 A|0903038|6||
|Electronic miniature circuit-breaker with signal contact: 1 N/C contact|12 A|EC-E4 12 A|0903039|6||
|Electronic miniature circuit-breaker with reset input and status output|0.5 A|EC-E 0.5 A 24 V DC|0903041|6||
|Electronic miniature circuit-breaker with reset input and status output|1 A|EC-E 1.0 A 24 V DC|0903042|6||
|Electronic miniature circuit-breaker with reset input and status output|2 A|EC-E 2.0 A 24 V DC|0903043|6||
|Electronic miniature circuit-breaker with reset input and status output|3 A|EC-E 3.0 A 24 V DC|0903044|6||
|Electronic miniature circuit-breaker with reset input and status output|4 A|EC-E 4.0 A 24 V DC|0903045|6||
|Electronic miniature circuit-breaker with reset input and status output|6 A|EC-E 6.0 A 24 V DC|0903046|6||
|Electronic miniature circuit-breaker with reset input and status output|8 A|EC-E 8.0 A 24 V DC|0903047|6||
|Electronic miniature circuit-breaker with reset input and status output|10 A|EC-E 10 A 24 V DC|0903048|6||
|Electronic miniature circuit-breaker with reset input and status output|12 A|EC-E 12 A 24 V DC|0903049|6||



|**Version**<br>**Signal input**|**Version**<br>**Signal input**||||**Signal**|**output**||||
|---|---|---|---|---|---|---|---|---|---|
||||F|alarm output (signal contact)||||SF status output||
|RE +24 V reset input||Individual-signal N/O contact|||Individual-signal N/C contact||SF +24 V status output = OK|||
||||(normally open)||(normally closed)|||||
|**EC-E1**<br>–|||x|||–||–||
|**EC-E4**<br>–|||–|||x||–||
|**EC-E**<br>x|||–|||–||x||
|||||||||||
|**Accessories**||||||||||
|**Description**||||**Type**||**Order No.**||**Pcs./Pkt.**||
|Continuous plug-in bridge for LINE+ and|0 V, insulated|with gray|Gray|FBST 500 TMC-NGY||0901028||10||
|material, 500 mm long, can be cut to length||||||||||
|Current carrying capacity with one supply: Imax= 50 A,||||||||||
|(recommendation: central input)||||||||||
|Current carrying capacity with two supplies: Imax= 63 A||||||||||
|Continuous plug-in bridge for signal contacts and reset||inputs,|Blue|FBST 500-PLC-BU||2966692||20||
|insulated with gray material, 500 mm long, can be cut to length|||Red|FBST 500-PLC-RD||2966789||20||
|Current carrying capacity with one supply:max= 1 A||||||||||
|With signal contacts connected in series: Imax= 0.5 A||||||||||
|Zack marker strip, flat, 10-section||||UC-TMF12||0819233||10||
|Screwdriver||||SZS 0.6X3.5||1205053||10||



PHOENIX CONTACT **2** 

**103906_en_01** 

**EC-E...** 

## **3 Technical data** 

**NOTE:** Data apply where TA = 25°C and UB = 24 V DC. 

|**Operating data**||
|---|---|
|Nominal voltage UB|24 V DC (18 V DC ... 32 V DC)|
|Nominal current IN|Depending on product version selected:|
||Fixed current strengths: 0.5 A, 1 A, 2 A, 3 A, 4 A, 6 A, 8 A, 10 A, 12 A|
|Closed-circuit current I0|When ON: Typically 20 mA ... 30 mA, depending on signal output|
|||
|**Shutdown**||
|Shutdown times|Refer to the time/current characteristic curve (see page 8)|
|Typical behavior|3 s where Iload> 1.1 x IN|
||100 ms ... 3 s where Iload> 1.8 x IN(or 1.5 x IN/1.3 x IN)|
|EC-E4: Pin 11/12|Individual signaling (N/C contact)|
|EC-E1: Pin 13/14|Individual signaling (N/O contact)|
|EC-E: SF 23, RE 22|RE reset input, SF status output|
|||
|**Status indicators**||
|Operating state signaling|–<br>Multi-color LED|
||–<br>SF status output (option)|
||–<br>Floating signal contact (F alarm output) (option)|
||–<br>On/off setting for switch S1|
|Multi-color LED|**Green**= Device switched on (S1 = ON) or load circuit/Power MOSFET forced|
||to trip|
||**Orange**= Overload or short circuit leading to electronic shutdown|
||**Red**= Device shut down electronically, load circuit/Power MOSFET switched|
||off, undervoltage (UB< 8 V) or after switch-on up to end of switch-on delay|
||time|
||**OFF**: Manually switched off (S1 = OFF) or device voltage is disconnected|
|||
|**Load circuit**||
|Load output|Power MOSFET switching output (positive switching)|
|Overload shutdown (OL)|Typically 1.1 x IN(1.05 ... 1.35 x IN)|
|Short-circuit current IK|Active current limitation (see page 5)|
|Temperature shutdown|Internal temperature monitoring with electronic shutdown|
|Undervoltage monitoring for load output after each switch-on procedure|With hysteresis, no reset required: Load "OFF" at UB< 8 V|
|Switch-on delay tStart|Typically 0.5 s after reset and after UBapplied|
|Load circuit shutdown|Electronic shutdown after overload/short circuit|
|Free running circuit|External free-wheeling diode recommended for inductive load|
|Parallel connection of multiple load outputs|Not permitted|
|||
|**F alarm output, signal contact(for EC-E1 and EC-E4**|**only)**|
|Electrical data|Floating signal contact|
||30 V DC/0.5 A maximum, 10 V/10 mA minimum|
|Normal state, LED lights up green|UBis present, switch S1 is set to ON, and no overloads or short circuits occur|
|OFF state, LED off|–<br>Device switched off (switch S1 set to OFF)|
||–<br>Operating voltage UBis not present|



PHOENIX CONTACT **3** 

**103906_en_01** 

**EC-E...** 

|**F alarm output, signal contact(for EC-E1 and EC-E4**|**only)  (continued)**||||
|---|---|---|---|---|
|Fault state, LED lights up orange|Overload condition > 1.1 x INleading to electronic shutdown||||
|Fault state, LED lights up red|–<br>Electronic shutdown after overload or short circuit||||
||–<br>Device switched off with control signal (switch S1 set to ON)||||
||–<br>EC-E1: Individual|signal, N/O contact open, pins 13 and 14|||
||–<br>EC-E4: Individual|signal, N/C contact closed, pins 11 and 12|||
|Fault description|F alarm output (signal contact) is in a fault state if||||
||–<br>Operating voltage UBis not present||||
||–<br>ON/OFF switch S1 is set to OFF||||
||–<br>The LED lights up red (electronic shutdown)||||
||||||
|**Status output(for EC-E only)**|||||
|Electrical data|Positive-switching signal output,||||
||switches UBto pin 23,||||
||nominal data: 24 V DC/0.2 A maximum (short-circuit-proof)||||
||The status output is terminated internally to 0||V with a 10-kohm resistance.||
|OUT status|EC-E... (OUT signal status), where UB= +24 V||||
||+24 V = S1 is ON, load|output forced to trip|||
||0 V = S1 is ON, load output blocked, and/or switch S1 is OFF.||||
||LED lights up red||||
|OFF state|0 V level at status output in all cases where:||||
||–<br>Switch S1 is set to ON, but the device is||still subject to a switch-on delay||
||–<br>Switch S1 is set to OFF or control signal OFF, device is switched off||||
||–<br>Operating voltage UBis not present||||
||||||
|**Reset input(for EC-E only)**|||||
|Electrical data|Maximum voltage: +32|V DC|||
||High > 8 V DC≤32 V DC||||
||Low≤3 V DC > 0 V DC||||
||Current consumption: Typ. 2.6 mA (+24 V DC)||||
||Minimum pulse duration: 10 ms||||
|RE reset signal, pin 22|When the EC-E is electronically blocked, it can be switched on again remotely||||
||on the falling edge of a +24 V DC pulse, using an external button. A common||||
||reset signal can also be applied to several devices at the same time. Devices||||
||that are switched on remain unaffected by this.||||
||||||
|**Connection terminal blocks**|||||
|**LINE+/LOAD+/0 V connection terminal blocks**|||||
|Screw connections|M4||||
|Connection capacity|**Solid**|**Stranded**|**With ferrule**||
|1 conductor|0.5 mm2... 10 mm2|0.5 mm2... 10 mm2|0.5 mm2... 10 mm2||
|2 conductors (two conductors with the same cross-section)|0.5 mm2... 4 mm2|0.5 mm2... 4 mm2|0.5 mm2... 2.5 mm2||
|2 stranded conductors with a TWIN ferrule||0.5 mm2... 6 mm2|||
|Stripping length|10 mm||||
|Torque (EN 60934)|1.5 Nm ... 1.8 Nm||||
|**Signal connections for connection terminal blocks**|||||
|Screw connections|M3||||
|Stranded connection capacity with ferrule|0.25 mm2... 2.5 mm2||||
|Stripping length|8 mm||||
|Torque (EN 60934)|0.5 Nm||||



PHOENIX CONTACT **4** 

**103906_en_01** 

**EC-E...** 

|**General data**||
|---|---|
|Fail-safe element|No backup fuse required for EC-E... as a redundant fail-safe element is|
||integrated (fuse element)|
|Mounting the housing|DIN rail in acc. with EN 50022, NS 35 x 7.5|
|Ambient temperature (operation)|0°C ... +50°C (without condensation, see EN 60204-1)|
|Ambient temperature (storage)|-20°C ... +70°C|
|Humid heat|96 h, 95% relative humidity, 40°C|
||in acc. with IEC 60068-2-78, Test Cab. Climatic class 3K3 according to|
||EN 60721|
|Degree of protection (housing, terminals)|IP20, DIN 40050|
|Installation dimensions (W x H x D)|12.5 mm x 80 mm x 83 mm|
|Weight|Approx. 65 g|
|||
|**Tests/approvals**||
|Conformance with EMC Directive 2004/108/EC|Noise emission: EN 61000-6-3|
||Noise immunity: EN 61000-6-2|
|Insulation coordination (IEC 60934)|0.5 kV/pollution degree 2, increased insulation in actuation area|
|Dielectric strength|32 V DC maximum (load circuit)|
|Insulation resistance ("off" state)|None, electronic shutdown only|
|Vibration resistance|3g, tested in acc. with IEC 60068-2-6, test Fc|
|Approvals|UL 2367, File E317172|
||Solid State Overcurrent Protectors|
||UL 1604, File E324415 (class I, division 2, groups A, B, C, D)|
||c|



|**Voltage drop, current limitation, maximum load current**|**Voltage drop, current limitation, maximum load current**|
|---|---|
|Nominal current IN<br>Typical voltage drop UONat<br>IN<br>Active current limitation<br>(typical)<br>Max. load current at 100% OT,<br>TA= 40°C<br>Max. load current at 100% OT,<br>TA= 50°C||
|0.5 A<br>70 mV<br>1.8 x IN<br>0.5 A<br>0.5 A||
|1 A<br>80 mV<br>1.8 x IN<br>1 A<br>1 A||
|2 A<br>130 mV<br>1.8 x IN<br>2 A<br>2 A||
|3 A<br>80 mV<br>1.8 x IN<br>3 A<br>3 A||
|4 A<br>100 mV<br>1.8 x IN<br>4 A<br>4 A||
|6 A<br>130 mV<br>1.8 x IN<br>6 A<br>5 A||
|8 A<br>120 mV<br>1.5 x IN<br>8 A<br>7 A||
|10 A<br>150 mV<br>1.5 x IN<br>10 A<br>9 A||
||12 A<br>180 mV<br>1.3 x IN<br>12 A<br>10.8 A|
||In cases where a row-mounting configuration is being used without convection cooling, the effect of the heat during continuous operation<br>(100% OT) means that the nominal device current may only be run at a maximum of 80% of its strength.|



PHOENIX CONTACT **5** 

**103906_en_01** 

**EC-E...** 

## **3.1 Connection diagrams** 

The signal contacts are shown in an off state or fault state. 

**==> picture [297 x 221] intentionally omitted <==**

**----- Start of picture text -----**<br>
EC-E1 LINE+ 1 EC-E4 LINE+ 1<br>14 12<br>13 11<br>2 LOAD+ 2 LOAD+<br>0 V 3 0 V 3<br>Without signal input, with F alarm output  Without signal input, with F alarm output<br>(individual signal, N/O contact) (individual signal, N/C contact)<br>Normal state: 13 - 14 closed Normal state: 11 - 12 open<br>Fault state: 13 - 14 open Fault state: 11 - 12 closed<br>**----- End of picture text -----**<br>


**==> picture [99 x 183] intentionally omitted <==**

**----- Start of picture text -----**<br>
EC-E LINE+ 1<br>SF 23<br>RE 22<br>2 LOAD+<br>0 V 3<br>**----- End of picture text -----**<br>


With RE reset input (+24 V DC 0 ), with SF status output (+24 V = load output ON) Normal state: SF +24 V = OK Fault state: SF 0 V 

Figure 1 Signal inputs/outputs 

## **3.2 Block diagram (using example of EC-E)** 

**==> picture [168 x 193] intentionally omitted <==**

**----- Start of picture text -----**<br>
LINE (+)<br>24 V DC<br>S1<br>on/off<br>Operating state,<br>green/orange/red<br>RE Reset input<br>SF Status output<br>LOAD (+) 0 V<br>load output<br>Control electronics<br>Fail-safe<br>sense<br>R<br>**----- End of picture text -----**<br>


Figure 2 Block diagram (using example of EC-E) 

PHOENIX CONTACT **6** 

**103906_en_01** 

**EC-E...** 

## **3.3 Information on UL approval** 

## a **UL1604** 

File E324415 

Operating Temperature Code T5 

- This equipment is suitable for use in Class I, Division 2, Groups A, B, C and D or non-hazardous locations only 

WARNING: 

- Exposure to some chemicals may degrade the sealing properties of materials used in the following device: Relay 

Sealant material: 

- Generic name: Modified diglycidyl ether of bisphenol A 

- Supplier: Fine Polymers Corporation 

- Type: Epi Fine 4616L-160PK 

- Casing material: 

- Generic name: Liquid crystal polymer 

- Supplier: Sumitomo Chemical 

- Type: E4008, E4009, or E6008 

## **3.4 Dimensions** 

**==> picture [220 x 161] intentionally omitted <==**

**----- Start of picture text -----**<br>
83 12.5<br>SSSA =<br>———— IN]— xa |<br>1 ——SS71S—==———_ ____)@®"Ne<br>™ 1 saw”SSS = =) — _—|<br>= Jyt:7:—— 1ifhi) ——-fofo<br>== |i<br>=\ 2 LQ)<br>=| LQ]<br>==aiiSSH =Yr<br>80<br>80<br>**----- End of picture text -----**<br>


Figure 4 Dimensions in mm 

- **1** UC-TMF 12 marking label 

- **2** Snap-on socket for DIN rail in acc. with EN 50022, NS 35 x 7.5 

RECOMMENDATION: 

- Periodically inspect the device named above for any degradation of properties and replace if degradation is found 

- **3.5 Structure** 

WARNING – EXPLOSION HAZARD: 

- Do not disconnect equipment unless power has been removed or the area is known to be non-hazardous 

- Substitution of any components may impair suitability for Class I, Division 2 

## a **UL2367** 

Non-hazardous use - UL File E317172 Class 2 

Meets requirement for Class 2 current limitation (EC-E...-0.5 A/1 A/2 A/3 A) 

Figure 5 Structure (using example of EC-E1) 

- **1** Line+ power rail 

- **2** 0-V power rail 

- **3** Signal rail or signal bridge 

Figure 3 UL approval package slip 

- **4** Shock protection slides (molded below the housing and can be easily removed) 

**7** 

PHOENIX CONTACT 

**103906_en_01** 

**EC-E...** 

## **3.6 Time/current characteristic curve (TA = 25°C)** 

**==> picture [233 x 181] intentionally omitted <==**

**----- Start of picture text -----**<br>
Stop point<br>typ. 1.1 x l N 1.8 x lN<br>10000<br>1000<br>100<br>10<br>5<br>1<br>0.1<br>0.01<br>0 1 2 IK 3<br>min. 1.05 x lN max. 1.25 x lN<br>Multiples of the nominal current<br>Switching time in seconds<br>**----- End of picture text -----**<br>


Figure 6 Time/current characteristic curve 

- In the 1.1 ... 1.8 x IN* range, the shutdown time is typically 3 s. 

- The electronic current limitation function is typically used from 1.8 x IN* upwards. This means that, typically, 1.8 times the nominal current* is flowing in the case of all overload conditions that lead to a shutdown (regardless of the power supply and load circuit resistance). The shutdown time ranges from 100 ms to 3 s depending on the multiple of the nominal current, or in the event of a short circuit (IK). 

- Without the current limitation function used at, typically, 1.8 x IN*, a considerably higher overcurrent would flow in the event of an overload or a short circuit. 

- Current limitation typically 1.8 x IN where IN = 0.5 A ... 6 A Current limitation typically 1.5 x IN where IN = 8 A or 10 A Current limitation typically 1.3 x IN where IN = 12 A 

PHOENIX CONTACT **8** 

**103906_en_01** 

**EC-E...** 

## **3.7 Safe shutdown** 

|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|**Safe shutdown of the EC-E... with different supply line lengths and cable cross-sections**|
|---|---|---|---|---|---|---|---|---|
|Specific electrical resistance for electrolytic copper:ρ0 = 0.0178(Ωx mm²)/m|||||||||
|**U**B**= 19.2 V DC**(80% of 24 V DC)||The voltage drop on the EC-E... and the tolerance of the shutdown point<br>(typically1.1 x IN= 1.05 ...**1.35 x I**N)have alreadybeen taken into account.|||||||
|EC-E... nominal current setting IN(in A)→<br>E.g., shutdown current Ishut= 1.25 A x IN(in A)→<br>**R**max**in ohms =(U**B**/I**shut**) - 0.050**Ω* →|||**3 A**|**6 A**|→ EC-E... typically shuts down after 3 s||||
||||3.75 A|7.5 A|||||
||||5.07<br>Ω|2.51<br>Ω|||||
||**EC-E... trips safely from**||**0**Ω**up to max. circuit resistance Rmax**||||||
||Cable cross-section**A**in mm²→|0.14 mm²|0.25 mm²|0.34 mm²|0.5 mm²|0.75 mm²|1 mm²|1.5 mm²|
||Length**L**in meters<br>(= single length)0||**Total cable resistance in ohms =(R0 x 2 x L)/A**||||||
|||0|0|0|0|0|0|0|
||5 m|1.27Ω|0.71Ω|0.52Ω|0.36Ω|0.24Ω|0.18Ω|0.12Ω|
||10 m|<br>2.54Ω|1.42Ω|1.05Ω|0.71Ω|0.47Ω|0.36Ω|0.24Ω|
||15 m|3.81Ω|2.14Ω|1.57Ω|1.07Ω|0.71Ω|0.53Ω|0.36Ω|
||20 m|<br>5.09Ω|2.85Ω|2.09Ω|1.42Ω|0.95Ω|0.71Ω|0.47Ω|
||25 m|<br>6.36Ω|3.56Ω|2.62Ω|1.78Ω|1.19Ω|0.89Ω|0.59Ω|
||30 m|<br>7.63Ω|4.27Ω|3.14Ω|2.14Ω|1.42Ω|1.07Ω|0.71Ω|
||35 m|<br>8.90Ω|4.98Ω|3.66Ω|2.49Ω|1.66Ω|1.25Ω|0.83Ω|
||40 m|10.17Ω|5.70Ω|4.19Ω|2.85Ω|1.90Ω|1.42Ω|0.95Ω|
||45 m|11.44Ω|6.41Ω|4.71Ω|3.20Ω|2.14Ω|1.60Ω|1.07Ω|
||50 m|12.71Ω|7.12Ω|5.24Ω|3.56Ω|2.37Ω|1.78Ω|1.19Ω|
||75 m|19.07Ω|10.68Ω|7.85Ω|5.34Ω|3.56Ω|2.67Ω|1.78Ω|
||100 m|25.34Ω|14.24Ω|10.47Ω|7.12Ω|4.75Ω|3.56Ω|2.37Ω|
||125 m|31.79Ω|17.80Ω|13.09Ω|8.90Ω|5.93Ω|4.45Ω|2.97Ω|
||150 m|38.14Ω|21.36Ω|15.71Ω|10.68Ω|7.12Ω|5.34Ω|3.56Ω|
||175 m|44.50Ω|24.92Ω|18.32Ω|12.46Ω|8.31Ω|6.23Ω|4.15Ω|
||200 m|50.86Ω|28.48Ω|20.94Ω|14.24Ω|9.49Ω|7.12Ω|4.75Ω|
||225 m|57.21Ω|32.04Ω|23.56Ω|16.02Ω|10.68Ω|8.01Ω|5.34Ω|
||250 m|63.57Ω|35.60Ω|26.18Ω|17.80Ω|11.87Ω|8.90Ω|5.93Ω|
|Example 1:  Max.permissible length at 1.5 mm² and 3 A→<br>**Approx. 200 m†**|||||||||
|Example 2:  Max.permissible length at 1.5 mm² and 6 A→<br>**Approx. 100 m**|||||||||
|Example 3:  Mixed wiring:<br>(control cabinet--- sensor/actuator level)<br>R1 = 40 m in 1.5 mm² and R2 = 5 m in 0.25 mm²<br>R1 = 0.95 ohms, R2 = 0.71 ohms<br>**Total(R1 + R2) = 1.66 ohms**|||||||||



- Internal resistance of miniature circuit-breakers 

- Shutdown current Ishut = 3 A x 1.25 A = 3.75 A Max. current resistance Rmax = UB/Ishut - 0.050 Ω (internal resistance of miniature circuit-breakers) Rmax = (19.2 V/3.75 A) - 0.050 Ω = 5.07 Ω 

- The value calculated, 5.07 Ω, falls between 200 m and 225 m in the table (4.75 Ω and 5.34 Ω). This means that you can bridge 200 m comfortably. 

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**103906_en_01** 

**EC-E...** 

## **4 Mounting the potenial distribution system** 

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(12.5 mm x n) – 3 mm = length of rails +/- 0.5 mm<br>LINE+power rail continuous  Continuous plug-in bridges E.g. (12.5 mm x 5) – 3 = 59.5 mm +/- 0.5 mm<br>plug-in bridge, gray 500 mm length, shorten<br>FB ST 500 TMC-NGY<br>Signal rail or signal bridge<br>continuous plug-in bridge<br>FBST 500-PLC-BU<br>FBST 500-PLC-RD<br>BU = blue<br>RD = red<br>Simply remove shock  0-V power rail Attach shock protection<br>protection slides from  continuous plug-in bridge, gray slides to sides of device<br>underside of device FB ST 500 TMC-NGY<br>**----- End of picture text -----**<br>


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Press in bridges and<br>shock protection slides<br>so that they are flush<br>with the sides of the housing<br>Press in bridges<br>so that they are flush<br>with the housing and<br>place in a central<br>position above<br>the contacts<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
12.5 mm x n = width of device block<br>E.g. 12.5 mm x 5 = 62.5 mm<br>**----- End of picture text -----**<br>


## Figure 7 Mounting 

A potential distribution system is integrated into the EC-E... Various continuous plug-in bridges can be used to create the following wiring configurations: 

**NOTE:** The EC-E... electronic miniature circuitbreakers require a 0-V connection. 

- LINE +(24 V DC) 

- 0 V 

- Signal contacts 

- Reset inputs 

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**EC-E...** 

## **5 Application examples** 

The signal contacts are shown in an off state or fault state. 

## **5.1 EC-E1– group signaling (series connection)** 

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+ Supply for the SI<br>+ Supply<br>LINE + Power Rail<br>Continuous Plug-in Bridges, Gray<br>1 1 1<br>+24 V LINE+ LINE+ LINE+<br>13 14 13 14 13 14<br>Group Signaling Using<br>a Signal Lamp<br>Power Supply Unit<br>24 V DC<br>Signal Bridges Plugged in Offset<br>EC-E1 EC-E1 EC-E1 In Relation to Each Other<br>Continuous Plug-in Bridges, Blue or Red<br>2 LOAD+ 2 LOAD+ 2 LOAD+<br>0 V 3 0 V 3 0 V 3 0 V<br>0 V-Power Rail<br>Continuous Plug-in Bridges, Gray<br>- Supply<br>+ - + - + -<br>Load Load Load<br>**----- End of picture text -----**<br>


## Figure 8 EC-E1– group signaling (series connection) 

## **5.2 EC-E4 – individual signaling with common supply** 

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Individual Signaling for<br>+ Supply for the SI Each channel using a<br>Signal Lamp<br>+ Supply<br>LINE+ Power Rail<br>Continuous Plug-in Bridges, Gray<br>1 1 1<br>+24 V LINE+ LINE+ LINE+<br>11 12 11 12 11 12<br>Power Supply Unit<br>24 V DC<br>Signal Rail for Common<br>EC-E4 EC-E4 EC-E4 Suppy<br>Continuous Plug-In Bridges, Blue or Red<br>2 LOAD+ 2 LOAD+ 2 LOAD+<br>0 V 3 0 V 3 0 V 3 0 V<br>0 V-Power Rail<br>Continuous Plug-in Bridges, Gray<br>- Supply<br>+ - + - + -<br>Load Load Load<br>**----- End of picture text -----**<br>


Figure 9 EC-E4 – individual signaling with common supply 

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**EC-E...** 

## **5.3 EC-E – individual signaling with common reset** 

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Reset<br>button Individual signaling for each<br>channel using a signal lamp<br>+ supply<br>LINE+ power rail<br>continuous plug-in bridge, gray<br>1 1 1<br>+24 V LINE+ LINE+ LINE+<br>22 23 22 23 22 23<br>RE SF RE SF RE SF<br>24 V DC<br>power supply unit<br>Signal rail for common<br>EC-E EC-E EC-E supply<br>Continuous plug-in bridges, blue or red<br>2 LOAD+ 2 LOAD+ 2 LOAD+<br>0 V 3 0 V 3 0 V 3 0 V<br>0-V power rail<br>continuous plug-in bridge, gray<br>- supply<br>+ - + - + -<br>Load Load Load<br>**----- End of picture text -----**<br>


Figure 10 EC-E – individual signaling with common reset 

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