MEAN WELL GST220A20-R7B 220W 20V 11A AC/DC Desktop Power Supply with 4-Pin DIN Plug

Industrial equipment and high-power devices often demand a reliable, efficient power source that won't overheat or fail under continuous load. The MEAN WELL GST220A20-R7B desktop power supply delivers a stable 20V DC output at up to 11A, making it ideal for powering monitors, industrial PCs, telecom gear, and other demanding electronics. With a fanless convection-cooled design and universal AC input, this adapter ensures quiet, dependable operation in offices, factories, and field installations.

Who is it for

This power supply is built for system integrators, IT professionals, and equipment manufacturers who need a robust, long-lasting power solution. Whether you're replacing a failed adapter or specifying power for new hardware, the GST220A20-R7B provides the headroom and safety certifications required for professional use.

Main features

• High efficiency up to 93% and Level VI compliance reduce energy waste and operating costs.
• Fanless convection cooling ensures silent operation and high reliability with no moving parts.
• Universal AC input (85–264V) works worldwide without switches or adjustments.
• Comprehensive protections: short circuit, overload, over voltage, and over temperature.
• 4-pin DIN output connector (R7B) for secure, application-specific connections.
• Wide operating temperature range from -30°C to +70°C for harsh environments.
• Compliant with UL62368-1, TUV EN62368-1, and EAC TP TC 004 safety standards.

Specifications

• Output power: 220W
• Output voltage: 20V DC
• Output current: 11A
• Input voltage: 85–264V AC
• Efficiency: Up to 93%
• No-load power consumption: <0.15W
• Energy efficiency level: Level VI
• AC input connector: IEC 320-C14
• DC output connector: 4-pin DIN plug (R7B)
• Protections: Short circuit, overload, over voltage, over temperature
• Operating temperature: -30°C to +70°C
• Ripple & noise: 150mVp-p
• Safety standards: UL62368-1, TUV EN62368-1, EAC TP TC 004
• EMC standards: EN55032 Class B, FCC Part 15 Class B
• Cooling: Convection (fanless)
• MTBF: >100,000 hours
• Topology: Switching power supply

Tips

Always verify the DC connector polarity and pinout of your device before connecting. For continuous full-load operation, ensure adequate ventilation around the unit. Use a properly grounded AC outlet to maintain safety and EMC compliance.