The SITOP PSU300S 6EP1437-2BA20 is Siemens' highest-power 3-phase DIN rail supply at 960W, engineered for large-scale factory automation and marine applications demanding 40A of clean 24VDC power.

Core Function

Converting 3-phase AC input (340-550V) to a stabilized 24VDC output adjustable up to 28VDC, this 40A supply powers extensive PLC installations, large drive systems, and distributed I/O networks. The 150% power boost delivers up to 60A momentarily to handle severe motor-start and capacitive inrush currents.

Technical Specifications

At 91.5% efficiency with natural convection cooling, the unit operates reliably across -25C to +70C. Electronic protection covers short-circuit, overload, and overvoltage conditions with automatic recovery. A signaling relay integrates with plant monitoring systems. ABS and DNV marine certifications qualify it for shipboard use.

Installation and Integration

Snap-on DIN rail mounting on standard EN 60715 35mm rails. Compatible with SITOP buffer, DC-UPS, redundancy, and selectivity modules for complete power management solutions. Up to two units operate in parallel for power scaling.