MEAN WELL RS-35-12 35W 12V 2.9A AC-DC Industrial Power Supply, Metal Case, Chassis Mount

In industrial automation, control systems, and LED signage, unstable DC power can cause erratic behavior, downtime, or even equipment damage. The MEAN WELL RS-35-12 eliminates these risks by delivering a rock-solid 12V DC output from any universal AC mains input, ensuring your sensitive electronics run reliably around the clock.

Who is it for

This power supply is built for system integrators, machine builders, and maintenance engineers who need a compact, dependable source of 12V DC power for PLCs, sensors, relays, LED strips, and other low-power industrial devices. It’s equally suited for DIY electronics enthusiasts and professional installers working on automation projects, access control, or lighting systems.

Main features

• Universal AC input range 85–264VAC (120–370VDC) with active power factor correction for global compatibility.
• Stable 12V DC output, adjustable from 10.8V to 13.2V, with low ripple and noise (120mVp-p) for clean power.
• Comprehensive protection: short circuit, overload, and over voltage safeguards protect both the supply and connected loads.
• High efficiency up to 82% and free air convection cooling – no fan means silent operation and no dust buildup.
• Rugged metallic case with chassis mount design for secure installation in control cabinets or equipment frames.
• Wide operating temperature range from -25°C to +70°C, suitable for harsh environments.
• Certified to UL60950-1, TUV EN60950-1, CB, and CE, meeting international safety standards.

Specifications

• Output voltage: 12V DC (adjustable 10.8–13.2V)
• Output current: 2.9A
• Output power: 35W
• Input voltage: 85–264VAC / 120–370VDC
• Input frequency: 47–63Hz
• Efficiency: 82%
• Ripple & noise: 120mVp-p
• Protections: Short circuit, overload, over voltage
• Cooling: Free air convection
• Operating temperature: -25°C to +70°C
• Setup, rise time: 500ms, 20ms at 230VAC
• Hold up time: 80ms at 230VAC
• Safety standards: UL60950-1, TUV EN60950-1, CB, CE
• Enclosure: Metallic case
• Mounting: Chassis mount

Tips

Always derate the output power by 2.5% per °C above 50°C ambient temperature to ensure long-term reliability. For best EMI performance, keep input and output wiring separated and use twisted pairs for DC connections. When adjusting the output voltage, use a plastic trimmer tool to avoid short circuits on the potentiometer.