Mean Well SDR-120-12 is a 120W DIN rail switching power supply with a regulated 12V DC output. It belongs to the SDR-120 industrial series and features built-in active power factor correction (PFC) for improved efficiency and stable operation.

The unit supports a universal input range of 88–264VAC or 124–370VDC and provides efficiency up to 89%. It can deliver 150% peak load capability (up to 180W for 3 seconds), making it suitable for applications with high start-up loads. Cooling is achieved by free air convection without a fan.

Key Specifications

• Output voltage: 12V DC

• Rated current: 10A

• Rated power: 120W

• Peak current: 15A

• Peak power: 180W (3 sec)

• Adjustable output range: 12–14V

• Ripple & noise: 100mVp-p

• Frequency range: 47–63Hz

Protections

• Short circuit protection

• Overload protection

• Over voltage protection 14–17V

• Over temperature protection

Features

• Active PFC (PF > 0.93)

• DC OK relay contact for power monitoring

• LED indicator for power status

• Adjustable output voltage

Environmental Conditions

• Operating temperature: -25°C to +70°C

• Humidity: 20–95% RH non-condensing

• Mounting: DIN rail TS-35/7.5 or TS-35/15

• Dimensions: 40 × 125.2 × 113.5 mm

• Weight: approx. 0.67 kg

Ingress protection: IP20

Applications

• industrial automation

• control systems

• PLC controllers

• factory automation

• electro-mechanical equipment

Warranty: 3 years