NSP-320-5

The MEAN WELL NSP-320 series is a 320W high-reliability AC/DC enclosed power supply designed for multi-industry applications including industrial automation, mechanical equipment, medical devices, security systems, telecommunications, and PoE power sourcing. With a universal 85–305VAC input and built-in active PFC, it delivers up to 93.5% efficiency and extremely low no-load power consumption for enhanced energy savings. The compact 179×99×30 mm design incorporates forced-air cooling with a DC fan, enabling stable performance across a wide operating temperature range from –40°C to +85°C. Featuring 200% peak power capability, constant current limiting, remote ON/OFF control, remote sense, DC OK signal, and fan ON/OFF temperature control, the NSP-320 series ensures dependable performance in demanding environments. It meets a broad range of global safety standards, including IEC/EN/UL 62368-1, 60601-1 (2×MOPP), 60335-1, 61010-1, and 62477-1, making it suitable for BF-rated medical applications and high-altitude installations up to 5000 meters.

Key Features

• 320W enclosed AC/DC power supply for multi-industry applications

• Universal input range: 85–305VAC / 120–431VDC

• High efficiency up to 93.5%, with no-load power <0.3–0.5W

• Forced-air cooling with built-in DC fan (noise <40 dB), fan ON/OFF temperature control

• 200% peak power capability (12–60V models), up to 640W for 5 seconds

• Output voltage options: 5V, 7.5V, 12V, 15V, 24V, 27V, 36V, 48V, 60V

• Ultra-wide operating temperature: –40°C to +85°C (derating >+60°C)

• Active PFC: PF>0.98 at 115VAC / PF>0.93 at 230VAC

• Constant current limiting and comprehensive protections
  (SCP / OLP / OVP / OTP)

• Extremely low leakage current <350µA, compliant with 2×MOPP for medical BF applications

• Remote ON/OFF control and remote sense (up to 0.3V compensation)

• DC OK signal for system monitoring

• Conformal coated PCB for enhanced durability

• OVC III compliance up to 2000m, OVC II up to 5000m

• Safety certified to IEC/EN/UL 62368-1, 60601-1, 60335-1, 61558-1/-2-16, 61010-1/-2-201, 62477-1

• EMC compliance: EN55032/EN55011 Class B, EN55035, EN61000-4-2/-3/-4/-5/-6/-8/-11

• Suitable for industrial automation, medical devices, telecom equipment, network systems, PoE power sourcing, and charging systems

• 5-year warranty