The SITOP PSU300S 6EP1434-2BA20 is Siemens' 240W mid-range 3-phase DIN rail power supply, balancing compact dimensions with high-performance features for machine control and automation systems.

Core Function

Converting 3-phase AC input (340-550V) to a stabilized 24VDC output adjustable up to 28VDC, this 10A supply reliably powers machine tools, conveyor systems, and mid-sized automation cabinets. The 150% power boost delivers up to 15A momentarily for motor-start surges.

Technical Specifications

At 91% efficiency, the unit dissipates only 23W of heat at full load, enabling natural convection cooling across its -25C to +70C operating range. Electronic protection covers short-circuit, overload, and overvoltage conditions. ABS and DNV marine certifications qualify it for shipboard automation applications beyond land-based industry.

Installation and Integration

The 70mm-wide housing mounts on standard 35mm DIN rails and operates side-by-side without spacing. Screw terminals accommodate input wiring up to 2.5mm and output wiring for dual load connections. Parallel operation of up to two units supports power scaling, and the SITOP ecosystem enables buffered, redundant, or selective configurations.