The SITOP PSU100D 6EP1321-1LD01 is Siemens' ultra-flat 29mm-high DIN rail power supply, delivering 35W at 3A of 12VDC for shallow control cabinets and space-constrained installations.

Core Function

With wide-range 100-240VAC input (90-264V), this stabilized 12VDC supply powers sensors, small controllers, and low-voltage devices in installations where cabinet depth is limited. The flat form factor protrudes only 29mm from the mounting surface, enabling installation in distribution boards and compact enclosures.

Technical Specifications

Operating at 86% efficiency with natural convection cooling, the unit includes short-circuit and overload protection with automatic recovery. The 82mm-wide housing mounts on standard 35mm DIN rails. Weighing only 0.17kg, it adds minimal mass to lightweight panels.

Installation

Wall or DIN rail mounting with screw terminals for 0.75-2mm wiring. The 29mm height maximizes usable space in shallow enclosures where standard 125mm-high PSUs will not fit.