Siemens 6EP3444-7SB00-3AX0 SITOP PSU6200 3AC 48V/5A DIN Rail Power Supply

The Siemens 6EP3444-7SB00-3AX0 is a SITOP PSU6200 three-phase power supply that accepts 400-500 V AC (or 500-550 V DC) input and delivers a stabilized, adjustable 48 V DC output rated at 5 A (240 W, 288 W up to 45°C), with galvanic isolation and a diagnostic interface for DC-OK status.

Technical Specifications

Certifications & Standards

• CE
• cULus
• UKCA
• EAC
• RCM
• SEMI F47
• BIS
• CB
• Shipbuilding Approval
• ABS
• DNV
• EPD

Selection Notes

The 6EP3444-7SB00-3AX0 is the 5 A entry point of the PSU6200 3AC family, matched to smaller 48 V DC loads such as a handful of relay or contactor coils rather than a full cabinet bus. It shares the same 400-500 V 3AC input class and diagnostic-contact DC-OK signal as the 10 A model in the series, so the two can be mixed in a project without changing the control-side wiring philosophy. Step up to the 10 A PSU6200 3AC variant once the connected 48 V load exceeds the 240 W (288 W derated) ceiling of this unit; step down to the 1AC-input PSU6200 models instead if only single-phase power is available at the panel. Parallel operation of two units, set via DIP switch, is available if the installation needs a larger combined 48 V DC bus without moving to the next current class.