Siemens SITOP 6EP1961-2BA21 Selectivity Module 24V DC

Product Overview

The Siemens 6EP1961-2BA21 is a SITOP PSE200U electronic selectivity module for 24 V DC power distribution.
It protects downstream loads by selectively disconnecting faulty circuits without affecting the entire power system.
Moreover, the module increases system availability by preventing total power loss during short circuits.
Therefore, control cabinets remain operational even when individual load branches fail.

This model provides four electronically protected output channels for flexible load separation.
In addition, integrated diagnostics support fast fault localization and reduced downtime.

Technical Data / Specifications

• Manufacturer: Siemens

• Product Family: SITOP PSE200U

• Model: Selectivity Module

• Part Number: 6EP1961-2BA21

• Product Type: Electronic Selectivity Module

• Input Voltage: 24 V DC

• Output Voltage: 24 V DC

• Number of Output Channels: 4

• Channel Protection Type: Electronic current limitation and disconnection

• Rated Output Current: Selectable per channel (application dependent)

• Function: Selective protection and decoupling of 24 V DC load circuits

• Diagnostics: Channel status LEDs and signaling contacts

• Mounting Method: DIN rail mounting

• Operating Temperature: 0 … +50 °C

• Storage Temperature: -40 … +70 °C

• Compliance: IEC / EN standards, CE approved

• Lifecycle Status: Active product

FAQ

What is the purpose of the Siemens 6EP1961-2BA21?
It provides selective electronic protection for four separate 24 V DC load circuits.

Is this module a UPS or backup power device?
No, it does not store energy or provide backup power.

How many output channels does the module support?
The module provides four independently protected output channels.

What happens during a short circuit on one channel?
Only the affected channel disconnects, while other outputs remain active.

Is the product suitable for continuous industrial operation?
Yes, it is designed for long-term use in automation and control environments.