Wall mount power adaptors suitable for medical applications

31st October 2016
Source: TRUMPower
Posted By : Alice Matthews
Wall mount power adaptors suitable for medical applications

A series of 25W wall mount power adapters has been introduced by TRUMPower. The TXM25 series meets 2 MOPP, is approved to Class II medical standards and also complies with IEC 60601-1-11:2015 for home healthcare environment use. The series accepts a 80-275VAC full range AC input and features short circuit and overload protections. 

The output voltage is factory preset between 3-55V to meet customer’s requirements. The standard output connector is a barrel plug on a 4ft output cable but to accommodate specific needs, many other desired connector options can be used as well. The customer has a choice of four types of interchangeable plugs, including US, China, Japan, EU, UK and Australian, which come with the adapter main body. The adapter measures approximately 7.49x4.34x4.01cm (2.95x1.71x1.58"). 

The enclosure leakage current is 100µA maximum at 240VAC, 60Hz on this double insulated Class II power adapter series. Operating altitude is 3,000m maximum. Other important features are its approvals to UL/IEC/EN 60601-1 edition 3.1, ANSI/AAMI ES 60601-1 (2012), CSA C22.2 No.60601-1 (2014) as well as its compliance with RoHS2, CEC. The power adapter complies with IEC/EN 60601-1-2 4th edition medical EMC and immunity standards including EN 55011 & CISPR11/FCC & VCCI class B (conducted and radiated emissions), EN 61000-3-3, EN 61000-4-2 (ESD at 15kV air and 8kV contact), EN 61000-4-3, EN 61000-4-8, EN 61000-4-11.

The series is rated for operating at -10 to 70°C ambient temperature, with de-rating required from 100% at 40°C linearly to 50% at 70°C. The units consume low no load power, typically less than 0.3W and have an efficiency of 65-86% minimum. The MTBF is 100,000 hours at full load at 25°C ambient temperature per MIL-HDBK-217F standards.

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