Filter products

Monitoring

Monitoring

Overview

Selectivity and rapid fault localization in 24 V feeders

The SITOP PSE200U, SITOP select and SITOP SEL1200/-1400 selectivity modules are the optimal expansion for all 24 V power supplies in order to distribute and monitor the load current across multiple feeders. Overload and short-circuit in one or more feeders is reliably detected and signaled.

The electronics permit brief current peaks caused, for example, by high inrush currents, but disconnects feeders in the event of an extended overload. This is ensured even on high-resistance lines and in the case of “creeping” short-circuits. In such cases, miniature circuit breakers fail to trip, or trip too late, even if the power supply unit could deliver the required tripping current. The SITOP expansion module continues to supply the intact feeders with 24 V absolutely free of interruptions and feedback – a feature which avoids a possible total system failure.

Benefits

  • Reliable shutdown in case of overload regardless of cable lengths or cable cross-sections
  • Choice of 4 or 8 load feeders per module with individually adjustable response threshold from 0.5–3 A, 2–10 A or 3–10 A for each output
  • Voltage measuring points for output currents (1 V = 1 A), disconnection of load circuit is not required
  • Two options for remote diagnostics: Group signaling contact or single-channel signaling
  • Versions with power limitation of the outputs to 100 VA according to NEC Class 2
  • Evaluation via free-of-charge SIMATIC S7 or SIMOTION function blocks (S7-1500/1200/300/400) or via LOGO! Software for modules with single-channel signaling (PSE200U)
  • Simple configuration thanks to individual setting of maximum current for every output using potentiometers
  • 3-color LEDs for fast on-site fault localization
  • Remote reset possible from a central location (PSE200U, SEL1200/-1400)
  • Simple commissioning thanks to manual switch on/off of outputs (PSE200U, SEL1200/-1400)
  • Sequential connection of feeders to reduce total inrush current
  • Sealable transparent cover over adjusters for currents and times protects against maladjustment (PSE200U, SEL1200/-1400)
  • Library for visualization in SIMATIC PCS 7

Application

The selectivity module is used in conjunction with 24 V power supplies to distribute the load current over several feeders and to monitor the individual currents. Faults in individual circuits caused by overload or short-circuit are detected and selectively switched off so that further load current paths remain unaffected by the fault. This achieves fast fault diagnostics and minimizes downtimes.

Design

The selectivity module is specially designed for the response of switched-mode power supply units and the 24 V DC feeders to be supplied. Individual setting of the response threshold allows optimum adaptation to the respective feeder.

Function

Monitoring
The current per output is monitored by the selectivity modules; if the set threshold of the output is
 exceeded, the output is
 switched off according to a predefined time-current characteristic curve. In addition, the supplying 24 V input voltage is constantly being monitored. As soon as this voltage threatens to fail, the path with a higher current than the set threshold is
 disconnected immediately. All other feeders continue to be supplied without interruption.

Signaling
Signaling of the faulty feeder takes place by the LEDs on the device as well as via group signaling contact or single-channel signaling. The selectivity module with its single-channel signaling option outputs the status of the individual outputs cyclically, by means of a serial code which can be read in by a digital PLC input.

Free function blocks for SIMATIC S7-300/400/1200/1500 for STEP 7 and TIA Portal as well as SIMOTION CPUs with SIMOTION SCOUT are available for evaluation. This enables simple integration into the S7 diagnostics and host control or HMI systems. The integration into the LOGO! logic module is also an application example.

More information, as well as the function blocks for download, can be found at:

SIMATIC S7:
http://support.automation.siemens.com/WW/view/en/61450284

SIMOTION:
http://support.automation.siemens.com/WW/view/en/82555461

LOGO!:
http://www.siemens.com/logo-application-examples

Easy visualization in the SIMATIC PCS 7 process control system is made possible by the SITOP library, which contains the function blocks and faceplates for individual channel and common signaling: http://support.industry.siemens.com/cs/ww/en/view/109476154

Connecting and disconnecting the outputs
During device startup you can select between simultaneous connection of all outputs, as well as sequential connection or load-dependent connection in order to reduce the peak inrush currents.

Each output can be manually connected and disconnected on the device (for example, for commissioning or service). Disconnected outputs can be connected by means of remote reset (24 V input). Prerequisite is that the outputs were not disconnected manually on the device.

Switch-off characteristic

The SITOP PSE200U, SITOP select and SITOP SEL1400 redundancy modules feature a limiting switch-off characteristic, whereas the SITOP SEL1200 redundancy modules have a switching one. The SITOP SEL1200 is adequate for all load components which correspond to the PLC standard. With this module, the voltage can briefly drop below 20 V. The SITOP SEL1400 prevents voltage drops below 20 V in the loads and therefore also protects those components which do not correspond to the PLC standard.

Technical specifications

Article number 6EP4438-7FB00-3DX0 6EP4438-7EB00-3DX0
Product brand name SITOP SEL1200 SITOP SEL1400
Type of current supply Selectivity module, 8 x 2 … 10 A group signal contact or diagnostics monitor Selectivity module, 8 x 2 … 10 A group signal contact or diagnostics monitor
Input
Type of the power supply network Controlled DC voltage Controlled DC voltage
Supply voltage at DC Rated value 24 V 24 V
Input voltage at DC 20.4 … 30 V 20.4 … 30 V
Overvoltage overload capability 35 V 35 V
Input current at rated input voltage 24 V Rated value 60 A 60 A
Output
Voltage curve at output controlled DC voltage controlled DC voltage
Formula for output voltage Vin – approx. 0.2 V Vin – approx. 0.2 V
Relative overall tolerance of the voltage Note In accordance with the supplying input voltage In accordance with the supplying input voltage
Number of outputs 8 8
Output current up to 60 °C per output rated value 10 A 10 A
Adjustable pick-up value current of the current-dependent overload release 2 … 10 A 2 … 10 A
Type of response value setting via potentiometer via potentiometer
Product feature parallel switching of outputs Yes Yes
Product feature bridging of equipments No No
Type of outputs connection Connection of all outputs after ramp-up of the supply voltage > 20 V; delay time of 25 ms, 200 ms, 500 ms or “load-optimized” can be set via DIP switch for sequential connection Connection of all outputs after ramp-up of the supply voltage > 20 V; delay time of 25 ms, 200 ms, 500 ms or “load-optimized” can be set via DIP switch for sequential connection
Efficiency
Efficiency in percent 99 % 99 %
Power loss [W] at rated output current for rated value of the output current typical 15 W 15 W
Switch-off characteristic per output
Switching characteristic
● of the excess current Iout = 1.0 …1.5 x set value, switch-off after approx. 5 s Iout = 1.0 …1.5 x set value, switch-off after approx. 5 s
● of the current limitation Iout = 1.5 x set value, switch-off after typ. 1 s Iout = 1.5 x set value, switch-off after typ. 100 ms
● of the immediate switch-off Iout > set value and Vin < 20 V, switch-off after approx. 8 ms Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms
Design of the reset device/resetting mechanism via sensor per output via sensor per output
Remote reset function Non-electrically isolated 24 V input (signal level “high” at > 15 V) Non-electrically isolated 24 V input (signal level “high” at > 15 V)
Protection and monitoring
Fuse protection type at input 20 A fast per output (not accessible) 20 A fast per output (not accessible)
Display version for normal operation Three-color LED per output: green LED for “Output switched through”; orange LED for “Output switched off manually”; red LED for “Output switched off due to overcurrent” Three-color LED per output: green LED for “Output switched through”; orange LED for “Output switched off manually”; red LED for “Output switched off due to overcurrent”
Design of the switching contact for signaling function Floating status signal output (pulse/pause signal that can be evaluated via SIMATIC function block) Floating status signal output (pulse/pause signal that can be evaluated via SIMATIC function block)
Safety
Galvanic isolation between input and output at switch-off No No
Operating resource protection class Class III Class III
Certificate of suitability
● CE marking Yes Yes
Standard for safety according to EN 60950-1 and EN 50178 according to EN 60950-1 and EN 50178
Protection class IP IP20 IP20
EMC
Standard
● for emitted interference EN 61000-6-3 EN 61000-6-3
● for interference immunity EN 61000-6-2 EN 61000-6-2
Operating data
Ambient temperature
● during operation -25 … +70 °C -25 … +70 °C
— Note with natural convection with natural convection
● during transport -40 … +85 °C -40 … +85 °C
● during storage -40 … +85 °C -40 … +85 °C
Environmental category acc. to IEC 60721 Climate class 3K3, 5 … 95% no condensation Climate class 3K3, 5 … 95% no condensation
Mechanics
Type of electrical connection Push-in Push-in
● at input 24V1, 24V2: push-in for 0.75 … 16 mm²; 0V1, 0V2: push-in for 0.2 … 4 mm² 24V1, 24V2: push-in for 0.75 … 16 mm²; 0V1, 0V2: push-in for 0.2 … 4 mm²
● at output 1 – 8: push-in for 0.2 … 4 mm² 1 – 8: push-in for 0.2 … 4 mm²
● for signaling contact 13, 14: push-in for 0.2 … 1.5 mm² 13, 14: push-in for 0.2 … 1.5 mm²
● for auxiliary contacts RST: push-in for 0.2 … 1.5 mm² RST: push-in for 0.2 … 1.5 mm²
Width of the enclosure 45 mm 45 mm
Height of the enclosure 135 mm 135 mm
Depth of the enclosure 125 mm 125 mm
Installation width 45 mm 45 mm
Mounting height 225 mm 225 mm
Net weight 0.3 kg 0.5 kg
Mounting type Snaps onto DIN rail EN 60715 35×7.5/15 Snaps onto DIN rail EN 60715 35×7.5/15
MTBF at 40 °C 925 000 h 363 000 h
Other information Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)

Article number 6EP1961-2BA11 6EP1961-2BA31 6EP1961-2BA51 6EP1961-2BA61
Product brand name SITOP PSE200U SITOP PSE200U SITOP PSE200U SITOP PSE200U
Type of current supply Selectivity module, 4 x 3 A Common signal contact Selectivity module, 4 x 3 A Single-channel signaling Selectivity module, 4 x 3 A NEC Class 2, Common signal contact Selectivity module, 4 x 3 A NEC Class 2, Single-channel signaling
Input
Type of the power supply network Controlled DC voltage Controlled DC voltage Controlled DC voltage Controlled DC voltage
Supply voltage at DC Rated value 24 V 24 V 24 V 24 V
Input voltage at DC 22 … 30 V 22 … 30 V 22 … 30 V 22 … 30 V
Overvoltage overload capability 35 V 35 V 35 V 35 V
Input current at rated input voltage 24 V Rated value 12 A 12 A 12 A 12 A
Output
Voltage curve at output controlled DC voltage controlled DC voltage controlled DC voltage controlled DC voltage
Formula for output voltage Vin – approx. 0.2 V Vin – approx. 0.2 V Vin – approx. 0.2 V Vin – approx. 0.2 V
Relative overall tolerance of the voltage Note In accordance with the supplying input voltage In accordance with the supplying input voltage In accordance with the supplying input voltage In accordance with the supplying input voltage
Number of outputs 4 4 4 4
Output current up to 60 °C per output rated value 3 A 3 A 3 A 3 A
Adjustable pick-up value current of the current-dependent overload release 0.5 … 3 A 0.5 … 3 A 0.5 … 3 A 0.5 … 3 A
Type of response value setting via potentiometer via potentiometer via potentiometer via potentiometer
Product feature parallel switching of outputs No No No No
Product feature bridging of equipments Yes Yes Yes Yes
Type of outputs connection Simultaneous connection of all outputs after power up of the supply voltage > 20 V, delay time of 25 ms, 100 ms or adjustable “load optimised” via DIP switch for sequential connection Simultaneous connection of all outputs after power up of the supply voltage > 20 V, delay time of 25 ms, 100 ms or adjustable “load optimised” via DIP switch for sequential connection Simultaneous connection of all outputs after power up of the supply voltage > 20 V, delay time of 25 ms, 100 ms or adjustable “load optimised” via DIP switch for sequential connection Simultaneous connection of all outputs after power up of the supply voltage > 20 V, delay time of 25 ms, 100 ms or adjustable “load optimised” via DIP switch for sequential connection
Efficiency
Efficiency in percent 97 % 97 % 97 % 97 %
Power loss [W] at rated output current for rated value of the output current typical 9 W 9 W 9 W 9 W
Switch-off characteristic per output
Switching characteristic
● of the excess current Iout = 1.0 …1.5 x set value, switch-off after approx. 5 s Iout = 1.0 …1.5 x set value, switch-off after approx. 5 s Iout = 1.0 …1.1 x set value, switch-off after approx. 5 s Iout = 1.0 …1.1 x set value, switch-off after approx. 5 s
● of the current limitation Iout = 1.5 x set value, switch-off after typ. 100 ms Iout = 1.5 x set value, switch-off after typ. 100 ms Iout = 1.1 x set value, switch-off after typ. 100 ms Iout = 1.1 x set value, switch-off after typ. 100 ms
● of the immediate switch-off Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms
Residual current at switch-off typical 1 mA 1 mA 1 mA 1 mA
Design of the reset device/resetting mechanism via sensor per output via sensor per output via sensor per output via sensor per output
Remote reset function Non-electrically isolated 24 V input (signal level “high” at > 15 V) Non-electrically isolated 24 V input (signal level “high” at > 15 V) Non-electrically isolated 24 V input (signal level “high” at > 15 V) Non-electrically isolated 24 V input (signal level “high” at > 15 V)
Protection and monitoring
Fuse protection type at input 5 A per output (not accessible) 5 A per output (not accessible) 5 A per output (not accessible) 5 A per output (not accessible)
Display version for normal operation Three-color LED per output: green LED for “Output switched through”; yellow LED for “Output switched off manually”; red LED for “Output switched off due to overcurrent” Three-color LED per output: green LED for “Output switched through”; yellow LED for “Output switched off manually”; red LED for “Output switched off due to overcurrent” Three-color LED per output: green LED for “Output switched through”; yellow LED for “Output switched off manually”; red LED for “Output switched off due to overcurrent” Three-color LED per output: green LED for “Output switched through”; yellow LED for “Output switched off manually”; red LED for “Output switched off due to overcurrent”
Design of the switching contact for signaling function Common signal contact (changeover contact, rating 0.1 A/24 V DC) Status signal output (pulse/pause signal, can be evaluated via Simatic function block) Common signal contact (changeover contact, rating 0.1 A/24 V DC) Status signal output (pulse/pause signal, can be evaluated via Simatic function block)
Safety
Galvanic isolation between input and output at switch-off No No No No
Operating resource protection class Class III Class III Class III Class III
Certificate of suitability
● CE marking Yes Yes Yes Yes
Standard for safety according to EN 60950-1 and EN 50178 according to EN 60950-1 and EN 50178 according to EN 60950-1 and EN 50178 according to EN 60950-1 and EN 50178
Shipbuilding approval DNV GL, ABS DNV GL, ABS DNV GL, ABS DNV GL, ABS
Protection class IP IP20 IP20 IP20 IP20
EMC
Standard
● for emitted interference EN 55022 Class B EN 55022 Class B EN 55022 Class B EN 55022 Class B
● for interference immunity EN 61000-6-2 EN 61000-6-2 EN 61000-6-2 EN 61000-6-2
Operating data
Ambient temperature
● during operation -25 … +60 °C -25 … +60 °C -25 … +60 °C -25 … +60 °C
— Note with natural convection with natural convection with natural convection with natural convection
● during transport -40 … +85 °C -40 … +85 °C -40 … +85 °C -40 … +85 °C
● during storage -40 … +85 °C -40 … +85 °C -40 … +85 °C -40 … +85 °C
Environmental category acc. to IEC 60721 Climate class 3K3, 5 … 95% no condensation Climate class 3K3, 5 … 95% no condensation Climate class 3K3, 5 … 95% no condensation Climate class 3K3, 5 … 95% no condensation
Mechanics
Type of electrical connection screw-type terminals screw-type terminals screw-type terminals screw-type terminals
● at input +24 V: 2 screw terminals for 0.5 … 16 mm²; 0 V: 2 screw terminals for 0.5 … 4 mm² +24 V: 2 screw terminals for 0.5 … 16 mm²; 0 V: 2 screw terminals for 0.5 … 4 mm² +24 V: 2 screw terminals for 0.5 … 16 mm²; 0 V: 2 screw terminals for 0.5 … 4 mm² +24 V: 2 screw terminals for 0.5 … 16 mm²; 0 V: 2 screw terminals for 0.5 … 4 mm²
● at output Output 1 … 4: 1 screw terminal each for 0.5 … 4 mm² Output 1 … 4: 1 screw terminal each for 0.5 … 4 mm² Output 1 … 4: 1 screw terminal each for 0.5 … 4 mm² Output 1 … 4: 1 screw terminal each for 0.5 … 4 mm²
● for signaling contact 3 screw terminals for 0.5 … 4 mm² 1 screw terminal for 0.5 … 4 mm² 3 screw terminals for 0.5 … 4 mm² 1 screw terminal for 0.5 … 4 mm²
● for auxiliary contacts Remote reset: 1 screw terminal for 0.5 … 4 mm² Remote reset: 1 screw terminal for 0.5 … 4 mm² Remote reset: 1 screw terminal for 0.5 … 4 mm² Remote reset: 1 screw terminal for 0.5 … 4 mm²
Width of the enclosure 72 mm 72 mm 72 mm 72 mm
Height of the enclosure 80 mm 80 mm 80 mm 80 mm
Depth of the enclosure 72 mm 72 mm 72 mm 72 mm
Installation width 72 mm 72 mm 72 mm 72 mm
Mounting height 180 mm 180 mm 180 mm 180 mm
Net weight 0.2 kg 0.2 kg 0.2 kg 0.2 kg
Mounting type Snaps onto DIN rail EN 60715 35×7.5/15 Snaps onto DIN rail EN 60715 35×7.5/15 Snaps onto DIN rail EN 60715 35×7.5/15 Snaps onto DIN rail EN 60715 35×7.5/15
Mechanical accessories Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20 Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20 Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20 Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20
MTBF at 40 °C 755 915 h 755 915 h 755 915 h 755 915 h
Other information Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)

Article number 6EP1961-2BA21 6EP1961-2BA41 6EP1961-2BA00
Product brand name SITOP PSE200U SITOP PSE200U SITOP select
Type of current supply Selectivity module, 4 x 10 A Common signal contact Selectivity module, 4 x 10 A Single-channel signaling Diagnosis module, 4 x 10 A
Input
Type of the power supply network Controlled DC voltage Controlled DC voltage Controlled DC voltage (SITOP select is not designed for operation with DC UPS module 40 A (6EP1 931-2FC21/-2FC42)
Supply voltage at DC Rated value 24 V 24 V 24 V
Input voltage at DC 22 … 30 V 22 … 30 V 22 … 30 V
Overvoltage overload capability 35 V 35 V 35 V; 100 ms
Input current at rated input voltage 24 V Rated value 40 A 40 A 40 A
Output
Voltage curve at output controlled DC voltage controlled DC voltage controlled DC voltage
Formula for output voltage Vin – approx. 0.2 V Vin – approx. 0.2 V Vin – approx. 0.3 V
Relative overall tolerance of the voltage Note In accordance with the supplying input voltage In accordance with the supplying input voltage In accordance with the supplying input voltage
Number of outputs 4 4 4
Output current up to 60 °C per output rated value 10 A 10 A 10 A
Adjustable pick-up value current of the current-dependent overload release 3 … 10 A 3 … 10 A 2 … 10 A
Type of response value setting via potentiometer via potentiometer via potentiometer
Product feature parallel switching of outputs No No No
Product feature bridging of equipments Yes Yes Yes
Type of outputs connection Simultaneous connection of all outputs after power up of the supply voltage > 20 V, delay time of 25 ms, 100 ms or adjustable “load optimised” via DIP switch for sequential connection Simultaneous connection of all outputs after power up of the supply voltage > 20 V, delay time of 25 ms, 100 ms or adjustable “load optimised” via DIP switch for sequential connection Simultaneous connection of all outputs after power up of the supply voltage, delay time of 24 ms or 100 ms programmable for sequential connection
Efficiency
Efficiency in percent 99 % 99 % 97 %
Power loss [W] at rated output current for rated value of the output current typical 10 W 10 W 30 W
Switch-off characteristic per output
Switching characteristic
● of the excess current Iout = 1.0 …1.5 x set value, switch-off after approx. 5 s Iout = 1.0 …1.5 x set value, switch-off after approx. 5 s Iout = 1.0 …1.3 x set value, switch-off after approx. 5 s
● of the current limitation Iout = 1.5 x set value, switch-off after typ. 100 ms Iout = 1.5 x set value, switch-off after typ. 100 ms Iout = 1.3 x set value, switch-off after approx. 50 … 100 ms
● of the immediate switch-off Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms
Residual current at switch-off typical 1 mA 1 mA 20 mA
Design of the reset device/resetting mechanism via sensor per output via sensor per output Using keys on the module
Remote reset function Non-electrically isolated 24 V input (signal level “high” at > 15 V) Non-electrically isolated 24 V input (signal level “high” at > 15 V)
Protection and monitoring
Fuse protection type at input 15 A per output (not accessible) 15 A per output (not accessible) Blade-type fuse per output (equipped when delivered with 15 A fuse)
Display version for normal operation Three-color LED per output: green LED for “Output switched through”; yellow LED for “Output switched off manually”; red LED for “Output switched off due to overcurrent” Three-color LED per output: green LED for “Output switched through”; yellow LED for “Output switched off manually”; red LED for “Output switched off due to overcurrent” Two-color LED per output: green LED for “Output switched through”; red LED for “Output switched off due to overcurrent”
Design of the switching contact for signaling function Common signal contact (changeover contact, rating 0.1 A/24 V DC) Status signal output (pulse/pause signal, can be evaluated via Simatic function block) Common signal contact (NO contact, rating 0.5 A/24 V DC)
Safety
Galvanic isolation between input and output at switch-off No No No
Operating resource protection class Class III Class III Class III
Certificate of suitability
● CE marking Yes Yes Yes
Standard for safety according to EN 60950-1 and EN 50178 according to EN 60950-1 and EN 50178 according to EN 60950-1 and EN 50178
Shipbuilding approval DNV GL, ABS DNV GL, ABS
Protection class IP IP20 IP20 IP20
EMC
Standard
● for emitted interference EN 55022 Class B EN 55022 Class B EN 55022 Class B
● for interference immunity EN 61000-6-2 EN 61000-6-2 EN 61000-6-2
Operating data
Ambient temperature
● during operation -25 … +60 °C -25 … +60 °C 0 … 60 °C
— Note with natural convection with natural convection with natural convection
● during transport -40 … +85 °C -40 … +85 °C -40 … +85 °C
● during storage -40 … +85 °C -40 … +85 °C -40 … +85 °C
Environmental category acc. to IEC 60721 Climate class 3K3, 5 … 95% no condensation Climate class 3K3, 5 … 95% no condensation Climate class 3K3, 5 … 95% no condensation
Mechanics
Type of electrical connection screw-type terminals screw-type terminals screw-type terminals
● at input +24 V: 2 screw terminals for 0.5 … 16 mm²; 0 V: 2 screw terminals for 0.5 … 4 mm² +24 V: 2 screw terminals for 0.5 … 16 mm²; 0 V: 2 screw terminals for 0.5 … 4 mm² +24 V: 2 screw terminals for 0.5 … 16 mm²; 0 V: 2 screw terminals for 0.5 … 4 mm²
● at output Output 1 … 4: 1 screw terminal each for 0.5 … 4 mm² Output 1 … 4: 1 screw terminal each for 0.5 … 4 mm² Output 1 … 4: 1 screw terminal each for 0.22 … 4 mm²
● for signaling contact 3 screw terminals for 0.5 … 4 mm² 1 screw terminal for 0.5 … 4 mm² 2 screw terminals for 0.22 … 4 mm²
● for auxiliary contacts Remote reset: 1 screw terminal for 0.5 … 4 mm² Remote reset: 1 screw terminal for 0.5 … 4 mm²
Width of the enclosure 72 mm 72 mm 72 mm
Height of the enclosure 80 mm 80 mm 90 mm
Depth of the enclosure 72 mm 72 mm 90 mm
Installation width 72 mm 72 mm 72 mm
Mounting height 180 mm 180 mm 190 mm
Net weight 0.2 kg 0.2 kg 0.4 kg
Mounting type Snaps onto DIN rail EN 60715 35×7.5/15 Snaps onto DIN rail EN 60715 35×7.5/15 Snaps onto DIN rail EN 60715 35×7.5/15
Product component belonging to 4x blade-type fuse 15 A
Mechanical accessories Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20 Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20
MTBF at 40 °C 540 979 h 540 979 h 616 675 h
Other information Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)

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