Power supply MEAN WELL RSP-320-7.5, 320 W output, 88–264 V input, 40 A, 115×215×30 mm

MEAN WELL RSP-320-7.5 is a 320 W enclosed AC-DC single-output DIN-rail power supply designed for applications that require a stable low-voltage DC source. It accepts a wide AC input range of 88–264 V and delivers a regulated 7.5 V DC output at up to 40 A. The unit features power factor correction (PFC), forced-air cooling and a 1U low-profile housing with compact dimensions of 115×215×30 mm, making it suitable for control cabinets, industrial automation and LED power systems. The device is RoHS compliant and intended for series installation where efficient, continuous DC output is required.

Advantages

The power supply provides a high continuous output power of 320 W in a compact 1U low-profile enclosure, allowing installation in space-constrained panels. Built-in PFC improves input current waveform and overall efficiency while forced-air cooling helps maintain performance under load. Its wide input voltage range ensures compatibility with varying AC mains supplies. The single 7.5 V DC output rated at 40 A supports high-current loads without external converters, and the DIN-rail mounting format simplifies integration into industrial racks and cabinets.

Suitable for

• Industrial control cabinets and PLC systems
• Automation equipment and machinery
• High-current LED lighting and LED driver systems
• Embedded systems and communication devices requiring 7.5 V DC
• Powering sensors, actuators and field devices in factories

Key specifications

• Output power: 320 W
• Output voltage: 7.5 V DC
• Maximum output current: 40 A
• Input voltage range: 88–264 V AC
• Cooling: Forced-air cooling
• Power factor correction: Built-in PFC
• Form factor: Enclosed DIN-rail mount, 1U low profile
• Dimensions: 115 × 215 × 30 mm
• Compliance: RoHS

How to use

Mount the unit on a standard DIN rail inside a suitably ventilated control cabinet. Connect the AC mains within the specified 88–264 V range to the input terminals, observing correct polarity and proper earthing/grounding. Connect the 7.5 V DC output to the load ensuring adequate conductor sizing for up to 40 A. Allow clearance for airflow around the unit and, if required by the installation environment, provide additional forced ventilation or a filter to prevent dust ingress. Verify output voltage under load and use appropriate fuses or circuit breakers on both input and output sides to protect against short circuits and overloads.

Recommendations

To ensure reliable long-term operation, operate the unit within its rated ambient temperature and provide sufficient airflow for the forced-air cooling. Use proper surge protection on the input side in environments with unstable mains. Select wiring and protective devices rated for the 40 A output current and perform periodic inspections of terminals for tightness and corrosion.