Power supply unit for subsea equipment Keeping the distances between circuit cards constant despite high input voltages was the main challenge in this project. These products are extremely reliable – they have to be, because we need them to work for years at a time in the deep sea without maintenance service.

Active power factor correction (PFC) Cooling by natural convection High efficiency (>85%) Temperature protection Voltage and current measurement of each output via CAN-Bus CAN-Bus interface for diagnostic control RS232 interface Wide AC or DC input range Temperature range from –25°C to 80°C Inrush current free start-up All 24 VDC outputs are on/off switchable Current regulation /over current protection Redundant supply for the 24 VDC to hold up the data communication Input Module →→ Input 300-850VAC or 400-1500VDC →→ Output 500W, 350VDC/1.4A About Powerbox Founded in 1974, with headquarters in...