Westermo PS-30 - Power supply

Industrial automation engineers and panel builders often need a compact, reliable power source for DIN rail installations in harsh environments. The Westermo PS-30 delivers stable 24V DC output from a universal AC input, making it a practical choice for powering sensors, controllers, and networking equipment in factory floors, transportation systems, and remote cabinets.

Key specifications

• Input voltage: AC 100–240V, 47–63 Hz
• Output: DC 24V, 1.25A, 30W
• Efficiency: >87%
• Mounting: DIN rail
• Operating temperature: -25 to +70 °C
• Protection: overload, short circuit, overvoltage, overtemperature
• Cooling: free air convection
• MTBF: >500,000 hours
• Certifications: UL 508, cUL, CE, RoHS
• Connection: screw terminals
• Housing: plastic
• Ripple & noise: <100 mVp-p
• Isolation voltage: 3 kVAC (input to output)

Why choose it

The PS-30 combines wide temperature tolerance, high efficiency, and robust protection in a space-saving plastic housing. Its DIN rail mounting simplifies installation in control cabinets, while the screw terminals ensure secure wiring. With a long MTBF and compliance with key industrial standards, it reduces downtime and maintenance costs.

Ideal use cases

• Powering industrial Ethernet switches and routers
• Supplying DC power to PLCs and remote I/O modules
• Supporting sensors and actuators in automation systems
• Providing auxiliary power in transportation and infrastructure applications
• Retrofitting legacy control panels with a modern, efficient supply

Good to know

The PS-30 operates from standard AC mains worldwide, eliminating the need for separate voltage selection. Its convection cooling means no fan noise or moving parts, enhancing reliability in dusty or vibration-prone environments. The 3 kVAC isolation protects connected equipment from electrical noise and surges.