Power

Switching power supply delivers 225W with fan cooling

15th May 2018
Mick Elliott

The OF(M)225 Series of open frame switching power supplies from Gresham Power Electronics utilises a highly advanced circuit topology to deliver 225W with fan cooling and 120W convection cooled in an industry standard package that has a 2.00 x 4.00in. footprint while being just 1.0in. high (50.8 x 101.6 x 25.4mm).

Gresham’s OF(M)225 power supplies feature cutting edge power density of 28W/in³, high efficiency up to 94% typical and feature a universal AC input with active PFC.

Output voltages of 12, 15, 24, 30, 48 and 56VDC are available.

All models feature an auxiliary output to power a cooling fan and an optional cover kit may be supplied to order.

The product range has been designed meet the requirements of medical, LED lighting, telecom and industrial applications.

Key international safety agency and EMC approvals are met as follows;EN60601-1 3rd Edition Class I or Class II, CSA/UL 60601-1 Medical Safety, IEC/EN60601-1 3rd Edition, CAN/CSA C22.2 No. 60601-1 3rd Edition, Nemko, UL, cUL and CE Marks, EN50022 (CISPR 22) FCC Part 15 Conducted—Level B, EN61000-3-2 Class D Harmonics, EN61000-4-2, 3, 4, 5 Level 3 Immunity

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