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Siemens AG
Entry type: Product note Entry ID: 109780465, Entry date: 06/17/2020
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Delivery release: Selectivity modules SITOP SEL1200/1400, 4 channel (10 A) and SEL1200/1400, 8 channel (5 A)

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The new SITOP selectivity modules SEL1200/1400, 4-channel (10 A) and SEL1200/1400, 8-channel (5 A) are now approved for worldwide delivery from the Nuremberg delivery centre.


Selectivity modules 

SITOP SEL1200

SITOP SEL1400

SITOP SEL1200

SITOP SEL1400

    

6EP4437-7FB00-3CX0

6EP4437-7EB00-3CX0

6EP4437-7FB00-3DX0

6EP4437-7EB00-3DX0

24 V DC 

4 x 10 A

4 x 10 A

8 x 5 A

8 x 5 A

Switching characteristic

Limiting charackteristic

Switching characteristic

Limiting charakteristik

The new selectivity modules complement the current device family with a reduced number of consumer branches (4 channels) as well as two new modules with a shut-off current range of 1 ... 5 A per channel. 

The features of the diagnostic interface, the small width, the push-in terminals and the parallel shelf life are identical to the properties of the selectivity modules SEL1200/1400, 8-channel, 10 A. The SITOP SEL1200 module has a switching characteristic in contrast to the SITOP SEL1400 and the selectivity modules SITOP PSE200U with limiting characteristics. 

The product range of the selectivity modules will be expanded, all existing SITOP selectivity modules will remain on offer.  

Product Highlights

  • Increased availability in case of short-circuit and overload
    • Safe shutdown of faulty branches
    • Uninterrupted supply of further branches 
  • Fast fault diagnosis 
    • LED status indicator on the device 
    • Sum message or diagnostic interface with single channel diagnostics regarding the current output current, the set current threshold, if necessary the cause of shutdown and the selectivity module type 
  • Relieving the power supply 
    • Avoidance of high inrush currents due to sequential channel connection 
  • Flexible use 
    • Individually adjustable response threshold for each output
    • Parallel shelf life of 2 adjacent outputs to increase performance 
  • Easy commissioning
    • Switching via pushbuttons per output 
    • 4 or 8 outputs per module 
    • Low width 
    • The  Push-in connection technology
  • Solution for highest and high operational reliability 
    • The  Selectivity module SEL1200 with switching characteristic
    • The  Selectivity module SEL1400 with limiting characteristics

The selectivity modules differ by the switch-off characteristic, simple protection functions are secured by the switching characteristics of the SEL1200, sophisticated protection functions are realized by the limiting characteristics of the SEL1400. This allows the user to develop solutions that are optimally tailored to his needs. The selectivity modules can only be used for 24 V DC supply voltages

Customer benefit 

  • Fast fault tracking reduces downtime
  • High availability due to non-retroactive supply to other consumers
  • Easily switch on capacitive loads
  • Lower inrush current allows smaller power supply
  • Switching on again error-free outputs from a distance
  • Easy commissioning and troubleshooting
  • Channel-accurate message via only one digital input, SIMATIC S7 system diagnostics via function blocks 
  • Add-on module optimally matched for SITOP power supplies 
  • Application-specific optimized sizing possible due to different types 

Replacement and compatibility 

The new all-round protection modules will be offered in parallel with the available products SITOP PSE200U and SEL 1200/1400 with 8 channels and 10 A in the segment of the add-on modules. 

Further information

Article numbers 

Type

Article number

SEL1200, 4-channel/10 A

6EP4437-7FB00-3CX0

SEL1400, 4-channel/10 A

6EP4437-7EB00-3CX0

SEL1200, 8-channel/5 A

6EP4437-7FB00-3DX0

SEL1400, 8-channel/5 A

6EP4437-7EB00-3DX0


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