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VB500

Product catalog summary

Overview: The VB500 Series by Powerbox is a power supply unit designed for subsea equipment, emphasizing reliability for long-term operation without maintenance in deep-sea environments. A key challenge addressed in the design was maintaining consistent distances between circuit cards despite high input voltages.

Features:

Active power factor correction (PFC) and cooling by natural convection.
High efficiency greater than 85% with temperature protection.
Voltage and current measurement for each output via CAN-Bus, with diagnostic control through CAN-Bus and RS232 interfaces.
Wide AC or DC input range, operating temperature from –25°C to 80°C.
Inrush current free start-up, switchable 24 VDC outputs, and current regulation with overcurrent protection.
Redundant supply for 24 VDC to maintain data communication.

Technical Specifications:

Input Module: 300-850VAC or 400-1500VDC input, 500W output at 350VDC/1.4A.
Output Module: 300-380VDC input, 4 outputs of 96W each at 24VDC/4A.
Dimensions: 256 x 206 x 59 mm.

About Powerbox: Founded in 1974 and headquartered in Sweden, Powerbox operates in 15 countries across four continents. The company serves industrial, medical, transportation/railway, and defense markets, focusing on designing and marketing high-quality power conversion systems. Powerbox is committed to enhancing customer competitiveness by meeting power needs, reducing energy consumption, and managing product lifecycles with minimal environmental impact.

Catalog excerpts

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.

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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...

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VB500

VB500

Catalog excerpts

All Powerbox catalogs and technical brochures