Woehrle alimentatore switching 48V DCDPNSW482020A trifase AC 340-550V parallelabile

Industrial automation engineers and panel builders often need a reliable 48V DC bus in three-phase installations. The Woehrle 43.000000000004 switching power supply delivers 960W from a 340–550V AC input, with parallel capability for higher power or redundancy. Its DIN-rail housing and convection cooling simplify integration into control cabinets and machinery.

Key specifications

• Input: 340–550V AC, 3-phase, 50/60Hz
• Output: 48V DC, 20A nominal, 960W
• Parallel operation supported for load sharing or redundancy
• Efficiency >90%, convection cooled, DC OK LED
• Protection: overload, short circuit, overvoltage, overtemperature
• Adjustable output voltage (±10%)
• Operating temperature: -25°C to +70°C
• DIN rail mounting

Why choose it

This power supply is built for demanding industrial environments. Its wide three-phase input range covers 380V, 400V, and 480V grids without configuration. Parallel operation lets you scale power or add redundancy, and the high efficiency reduces heat and energy costs. The rugged design and comprehensive protection ensure long service life even in harsh conditions.

Ideal use cases

• Powering PLCs, sensors, and actuators in control cabinets
• Building 48V DC bus systems for industrial machinery
• Redundant power configurations for critical processes
• Retrofitting existing three-phase installations

Good to know

The unit is convection cooled, so no fan means less maintenance and silent operation. Output voltage can be trimmed ±10% to compensate for cable voltage drop. Always follow local electrical codes and use appropriate fusing on the input side.