Mean Well GSM40B48-P1J Power Supply 40W 48V

This model is a 40W desktop AC-DC power supply with a 48V DC output and a rated current of 0.84A. It is designed as a regulated external power supply for equipment that requires a 48V input within that power range.

This model is medical safety approved and specifies 2 x MOPP isolation between primary and secondary. It also has low leakage current below 50uA, which makes it appropriate for medical-related equipment where those approvals are required.

The GSM40B48-P1J accepts a universal input range of 80 to 264VAC, and it also supports 113 to 370VDC input. That wide range helps it fit equipment used across different AC mains environments without needing separate regional versions of the power unit itself.

This version uses a 2-pole IEC320-C8 AC inlet and a standard P1J DC plug. The listed DC plug size is 2.1 mm x 5.5 mm x 11 mm with center positive polarity and a tuning fork type contact.

The published working temperature range is -30°C to +60°C, with reference to the output derating curve. That makes it suitable for a wide range of indoor and controlled industrial environments where temperature performance matters.

This model includes protection for short circuit, overload, over voltage, and over temperature conditions. It is also specified with no-load power consumption below 0.1W, up to 91% efficiency, a power-on LED indicator, 100% full-load burn-in testing, and a 3-year warranty.