Manual for SITOP SEL1200-1400

Manual for SITOP SEL1200-1400

Brand: SIEMENS

Category: Control Unit

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 7:58 p.m.

Manual Publish Date: 2019-06-01

The SITOP SEL1200-1400 is a selectivity module used in conjunction with a 24 V power supply to distribute load current across multiple branches and monitor individual branch currents.

Key features include:

  • Monitoring of up to 8 load branches per module.
  • Adjustable response threshold for each output via potentiometer.
  • Automatic selective switch-off of faulty branches (overload or short-circuit) to prevent impact on other circuits.
  • Fast troubleshooting and minimized downtime.
  • SEL1200 buffers a 10 ms voltage-free period; SEL1400 prevents voltage dips below 20 V.
  • Outputs can be switched on/off manually or via remote reset.
  • Fast fault diagnostics with multi-colored LEDs.
  • Floating group signal contact for remote diagnostics.
  • Sequential switch-on of load branches to reduce inrush current.
  • Push-in terminals for easy connection.

The module ensures that the 24 V supply for other loads is maintained during faults.

Troubleshooting and error codes

LED Meaning/handling
Lit red Electronic shutdown as a result of an overload; wait time until a reset is possible: approx. 20 seconds.
Flashes red Output ready for a reset; press the button to switch-on the output again.
Lit green The reset was carried out, the output was switched-on again.
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