Siemens 6EP1961-2BA21 DC 24 Volt Power Supply Module

Siemens 6EP1961-2BA21 is a SITOP PSE200U selectivity module that extends a 24 V DC SITOP power system by distributing current to four branch loads while providing safe fault isolation. It delivers four independent 24 V DC outputs rated at 10 A each (4 x 10 A) from a single 24 V input, for a combined output capacity of up to 40 A, and includes a common signaling contact to report status to the controller. The module’s threshold for switching is adjustable in the 3–10 A range, enabling selective disconnection of overloads while other loads remain powered. It is designed to snap onto a DIN rail (EN 60715) and occupies a compact 72 mm of mounting width in typical control panels. As part of the SITOP PSE200U family, it is intended for applications that require coordinated monitoring and selective disconnection of multiple 24 V loads in automation cabinets, PLC power rails, and distributed I/O systems.