What is a typical application for a 4V, 90A power supply?

The RSP-500-4 delivers 4V at 90A (360W), used for powering low-voltage bus converters, telecom processing board power rails, and certain embedded computing subsystems that specify a regulated 4V source with high current capacity.

What is the cold-temperature limit of the RSP-500-4?

The RSP-500-4 operates down to -30°C ambient, with an upper limit of +70°C. It carries BSMI, CB, CCC, CE, EAC, c_rcm, TÜV, and UL certifications and is rated for indoor enclosed use.

How does the RSP-500-4 compare to the RSP-500-3.3 and RSP-500-5?

All three share the 230.0 × 127.0 × 40.5 mm chassis and 85-264VAC input. The RSP-500-3.3 provides 297W at 90A, the RSP-500-4 provides 360W at 90A, and the RSP-500-5 provides 450W at 90A. Current output is identical across the three; power scales with voltage.

What is the actual rated power of the RSP-500-4?

The RSP-500-4 is rated at 360W (4V × 90A). It includes built-in active PFC and weighs 1.3 kg. A 3-year warranty is included.

Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well RSP-500-4 Power Supply 360W 4V 90A

1U low profile with active PFChigh efficiency

SKU RSP-500-4

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The RSP-500 is a 500W Mean Well power converter (input range: 85~264VAC, operating temperature: -30~+70℃).

Key Features

✓ Input voltage range: 85~264VAC
✓ DC output voltage adjustable ±10%
✓ 3KVAC reinforced I/O isolation
✓ Wide operating temperature: -30~+70℃
✓ Protections: Overload / Over voltage / Over temperature
✓ Active PFC — meets international energy efficiency regulations
✓ 3 years warranty

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Model	Power	Voltage	Current
Mean Well RSP-500-24 Power Supply 500W 24V 21A	504W	24V	21A	View
Mean Well RSP-500-5 Power Supply 450W 5V 90A	450W	5V	90A	View
Mean Well RSP-500-48 Power Supply 500W 48V 10.5A	504W	48V	10.5A	View
Mean Well RSP-500-3.3 Power Supply 297W 3.3V 90A	297W	3.3V	90A	View
Mean Well RSP-500-27 Power Supply 500W 27V 18.6A	502.2W	27V	18.6A	View
Mean Well RSP-500-15 Power Supply 500W 15V 33.4A	501W	15V	33.4A	View
Mean Well RSP-500-12 Power Supply 500W 12V 41.7A	500.4W	12V	41.7A	View

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Key Features

✓ Input voltage range: 85~264VAC

✓ DC output voltage adjustable ±10%

✓ 3KVAC reinforced I/O isolation

✓ Wide operating temperature: -30~+70℃

✓ Protections: Overload / Over voltage / Over temperature

✓ Active PFC — meets international energy efficiency regulations

✓ 3 years warranty

Mean Well RSP-500-4 Power Supply 360W 4V 90A

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Mean Well RSP-500-4 Power Supply 360W 4V 90A

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