Home › ProductsAC-DC Power SuppliesOpen Frame / Chassis MountRHM500



  • 240W Convection cooled / 508.6W Fan cooled
  • Latest Medical safety approvals IEC 60601-1 (3.1) & BF rated
  • 4th ed. Medical EMC IEC 60601-1-2 (2014)
  • 5V Standby and Remote on/off option
  • EN55011 Level B conducted & radiated
  • -40 to +70°C Operation
  • 5 Year warranty

Product Description

The RHM500 series of power dense, open frame AC-DC power modules offer 240W convection cooled and 508.6W fan cooled in a 3 x 5” package. The units are designed for use in medical applications, are very efficient and have low emissions, meeting EN55011 Level B. They have a wide temperature range from -40 to +70°C and offer low no load power consumption of < 1W. Outputs are available from 12 to 48V and all models come with a FiDUS 5 year warranty.

Contact us on 01183 420730 or sales@fiduspower.com to confirm stock levels, leadtimes and further prices.

Part numbers
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3 x 5 x 1.38” (76.2 x 127 x 35mm)

Input Voltage

90 to 264 VAC

No Load Input Power

< 0.1 W

Harmonic Currents

EN61000-3-2 Class A


Up to 92%

Operating Temp

-40 to 70°C, see datasheet for derating curve


Input to Output - 4000 VAC

Input to Ground - 2000 VAC

European Safety Approvals

EN 60601-1:2006 + A1: 2013

US Safety Approvals

ES 60601-1:2005 (R2012), CSA-C22.2 No 60601-1:14

Other Safety Approvals

IEC 60601-1 2005 + A1 (Ed 3.1)


EN55011 Conducted & Radiated - Level B

Safety Approvals

RHM500 DoC RHM500 DoC (157 KB)

3D Models

RHM500 3D PDF RHM500 3D PDF (3444 KB)

RHM500 3D STP RHM500 3D STP (21763 KB)

Require a modified standard part?

Based on your specific requirements, our AC-DC power supplies, DC-DC converters and medical grade power supplies can be supplied with variations to input/output parameters and non-standard connections to meet the needs of your application.

Can’t find what you are looking for? Call us 01183 420730 or

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