PFS1200-12-054ND

The Bel Power Solutions PFS1200-12-054ND is a 1200 Watt DC to DC power supply designed for high-performance servers, routers, and network switches. It converts DC input to a main output of 12 VDC, suitable for intermediate bus architectures.

This power supply features a high efficiency of typically 94% at half load and a wide input voltage range of -40 to -72 VDC. It includes an always-on 3.3 V standby output, hot-plug capability, and parallel operation with active digital current sharing. The unit offers overvoltage and overcurrent protection.

With a high-density design of 45 W/in3, the PFS1200-12-054ND measures 54.5 x 40 x 228.6 mm. It incorporates an I2C communication interface for control, programming, and monitoring, supporting Power Management Bus and PSMI protocols. Status is indicated by two LEDs, and the unit meets international safety standards, displaying the CE-Mark for the European Low Voltage Directive.

The supply is fan-cooled and designed for integration with matching airflow paths. An active OR-ing device on the output ensures no reverse load current, making it suitable for redundant power systems. The standby output is also protected by an active OR-ing device for maximum reliability.