Bel Fuse / Power-One MAP55-4003 AC-DC Power Supply

The Bel Fuse/Power-One MAP55-4003 is a 55 W AC-DC power supply module engineered for industrial and commercial applications requiring tightly regulated, multi-output DC power. This chassis-mount unit accepts universal AC input from 85 VAC to 264 VAC at 50/60 Hz, making it suitable for global deployment. The MAP55-4003 delivers four isolated outputs: +5 VDC at 6 A, +15 VDC at 2.5 A, -5 VDC at 0.5 A, and -15 VDC at 0.5 A, with output regulation of ±1.5% on the main rail and ±1% on auxiliary rails. Line regulation holds to 0.2% typical, and ripple and noise remain below 1%. Overload and short-circuit protection with automatic recovery safeguards connected equipment. The thermally efficient U-channel chassis design permits full-power operation in convection-cooled environments without forced-air cooling. Dual-mode connectors support both traditional terminal block and Molex single-row mating, accommodating diverse integration schemes. Mounting versatility includes metric and SAE inserts for flexible mechanical integration. Isolation voltage reaches 2.6 kV. Peak efficiency of 73% and MTBF exceeding 225,000 hours underpin long-term reliability. The unit holds CE, CSA, TÜV, and UL approvals and meets EN55022 Class B conducted emissions, EN 61204-3 EMC, EN 55032, EN 61000-3-2, and EN 61000-3-3 standards. RoHS compliant. Note: This product is obsolete and no longer manufactured.