GTM962250P series of 225W medical open-frame power supplies is designed for easiest system integration and stress-free compliance

GlobTek’s new GTM962250P series of 225W medical open-frame power supplies is designed for easiest system integration and stress-free compliance with international regulations. GTM962250P is available in output voltages between 12 and 54V, and comes standard with a 12V fan supply. GTM962250P uses the latest resonant power conversion technologies, allowing an industry leading 14.8W/in³ natural convection rating at 50°C and 85Vac, all while remaining highly cost competitive. GTM962250P is certified to IEC60601-1, IEC60601-1-11, IEC62368-1, and IEC60335-1 to accommodate a wide range of end-applications.

GTM962250P has several distinct advantages which make it stand out among the competition:

• Full 140W natural convection power rating at 50°C ambient and at 85Vac input voltage; No derating required!
• Class B conducted and radiated EMI without external ferrites, filters, or metal plates
• Low output voltage ripple for all output voltages (<1% max., <0.75% typ.), for noise sensitive applications
• Comes standard with GlobTek’s "F2" functional earth configuration, providing an optimal balance of EMI, immunity, and leakage current performance. (Other configurations available upon request.)
• 20ms minimum hold-up time at 75% load (169W), for easy criterion A dips/interruptions compliance per IEC60601-1-2
• Exceptionally low standby power consumption; < 0.15W at 230Vac

Alternate mechanical formats are available depending on application requirements:

GTM962251P: L-frame


GTM962252P: L-frame + cage


GTM962253P: Fully potted in plastic housing (IP68,140W rated)


For open-frame version GTM962250P:


-C Suffix: 3" x 5" PCB
-D Suffix: 4.22" x 7" PCB

Input and output wiring harnesses are available for a total turnkey power solution:

IEC 320-C14 harness: C1410070M6VAR2(R)

IEC 320-C8 harness: C810070M6VAR2(R)

VHR-6 to VHR-6 harness: VHR621007160M7VHR6(R)


Standalone EMI testing of the power supply was performed with a floating resistive load. System-level EMI performance can vary based on cable routing and overall structure. EMI issues may be alleviated with addition of a ferrite core on the input or output cable harness. Custom cable harnesses with integrated ferrites are available upon request. See GlobTek EMI-MITIGATION-KIT1 for a list of standard stocking ferrite cores.