• Output Power: 80.4 W (90 W peak)
• Output Voltage: 12 V DC
• Output Current: 6.7 A (7.37 A peak)
• Input Voltage Range: 80 – 305 V AC / 113 – 431 V DC, 47 – 63 Hz
• Efficiency: 92.5 %
• Ripple & Noise: ≤ 120 mVp-p
• Inrush Current: max. 30 A @115 VAC / 65 A @230 VAC
• No-load Power Consumption: < 0.3 W
• Operating Temperature: −30 °C to +85 °C
• Cooling: Free air convection
• Protection Functions: Short circuit, Overload, Over voltage, Over temperature
• Overvoltage Category: OVC III
• Isolation Voltage: 4000 V AC (Input to Output)
• Dimensions (L x W x H): 109 mm x 52 mm x 33.5 mm
• Weight: approx. 217 g
• Mounting Type: Screw Terminal Chassis Mount
• Safety & EMC Certificates: UL62368-1, EN62368-1, IEC62368-1, EN60335-1, CB, EAC, CE
• Manufacturer Warranty: 3 Years

Information on the MEAN WELL IRM-90-12ST

The MEAN WELL IRM-90-12ST is the versatile screw terminal chassis mount version of the highly regarded IRM-90 series, offering a 12V DC stable output for industrial environments where direct PCB soldering is not preferred. This specific "ST" configuration simplifies integration by allowing for easy wiring and chassis mounting, making it a favorite for mechanical equipment and control cabinets. The unit is fully encapsulated in a plastic case that meets the 94V-0 flame retardant standard, ensuring that the internal electronics are protected against external contaminants such as dust and moisture. Its robust thermal design allows it to maintain high performance through free air convection, eliminating the need for noisy or failure-prone cooling fans.

Efficiency remains a core strength of the IRM-90-12ST, reaching up to 92.5% and featuring an impressively low no-load power consumption of less than 0.3W. This high-efficiency performance ensures minimal heat generation and supports compliance with global green energy initiatives. Furthermore, the power supply is designed as a Class II device with no functional ground required and holds an Overvoltage Category III (OVC III) rating. This rating provides superior surge protection, making the unit exceptionally reliable for industrial electrical equipment and factory automation systems that interface directly with the building's main electrical installation. With its wide input range and ability to operate at altitudes up to 4000 meters, it is a globally compatible power solution for demanding technical applications.