MEAN WELL DRC-100B 96.6W DIN Rail Power Supply with UPS Function and Battery Charger, 24V DC 4A, 90-264V AC Input, Blue/White

Delivering 96.6 W of reliable power with an integrated UPS function and built-in battery charger, the MEAN WELL DRC-100B is a compact DIN rail power supply engineered for critical 24 V DC loads. Its 4 A output current and wide 90–264 V AC input range make it a versatile backbone for industrial control, security, and automation systems that demand uninterrupted operation.

Overview

The DRC-100B combines a high-efficiency AC/DC converter, a battery charger, and a UPS transfer circuit in a single plastic housing. It charges a connected lead-acid or Li-ion battery and automatically switches to battery power within milliseconds if the mains supply fails. This ensures continuous operation of connected equipment, preventing data loss or process interruption. The unit is designed for DIN rail mounting, simplifying installation in control cabinets and distribution boards.

What stands out

• Integrated UPS function with seamless transfer to battery backup
• Built-in charger for lead-acid (gel, AGM, flooded) and Li-ion batteries
• High efficiency of 89% reduces energy waste and heat generation
• Wide operating temperature range from -30 °C to +70 °C
• Comprehensive protection: short circuit, overload, over voltage, battery low disconnect, and battery reverse polarity
• Relay contacts for DC-OK and battery low signals enable remote monitoring
• Free air convection cooling – no fan, no noise, no maintenance
• Safety certifications: UL60950-1, TUV EN60950-1, CB, CE

Technical details

• Output power: 96.6 W
• Main output: 24 V DC, 4 A
• Input voltage: 90–264 V AC or 127–370 V DC
• Ripple & noise: 150 mVp-p max
• Isolation voltage: 3 kV AC between input and output
• Mounting: DIN rail (TS-35/7.5 or 15)
• Housing material: plastic
• Colour: blue and white
• Number of outputs: 2 (load and battery)
• Cooling: free air convection
• Operating temperature: -30 °C to +70 °C

Our verdict

The MEAN WELL DRC-100B is a robust, all-in-one power solution for systems that cannot tolerate downtime. Its integrated UPS and battery management features, combined with a wide temperature range and silent operation, make it an excellent choice for industrial and security applications.