The QS series of single output medical and industrial power supplies have full MoPPs (Means of Patient Protection) isolation, low acoustic noise and a range of options including a PMBus communication with a high current standby voltage. With medical and industrial safety certifications, the power supplies are suitable for use in medical, test and measurement, communications and broadcast equipment.
Accepting a wide range 90 to 264-Vac, 47-440-Hz input, the QS7 can deliver 
1200 W, the QS5 600 W and the Q5H up to 1200 W at high line and 700 W with a low line (<180 Vac) input. Three standard output voltages are available; 12, 24 and 48 V. The standby/signal option can be configured with output inhibit or enable remote on//off, a PMBus interface and a 5-V @ 0.25-A and/or a 5-V @ 2-A standby voltage.
Case dimensions for the QS5 and QS5H are 127×63.3×270 mm (W x H x D) and 176×63.3×270 mm for the QS7. The QS5 and QS5H are available with an IEC 320 input connector, replacing the screw terminal block. Operating ambient temperatures are -20 to +70°C, with output power and output current linearly derating above 50°C to 50% at 70°C. The use of low speed fan cooling reduces audible noise and also significantly reduces the ingress of dirt and other contaminants, improving product reliability. All models in the QS series have a seven-year warranty as standard.
The power supplies have 4,000 Vac (2xMoPPs) input to output, 1,500 Vac (1xMoPP) input to ground and 1,500 Vac (1xMoPP) output to ground isolation. All models are certified to the IEC/EN/UL/CSA 60601-1, ANSI/AAMI ES 60601-1 and IEC/EN/UL/CSA 60950-1 safety standards, (designed to meet IEC/EN 61010-1), with CE marking for the Low Voltage, EMC and RoHS2 Directives. Earth leakage current is less than 300 µA, and complies with the EN61000-6-3:2007 and EN60601-1-2:2015 (curve B conducted and radiated) emission standards. The units also meet the EN60601-1-2 and EN61000-6-2 immunity standards and are designed and manufactured under the control of ISO9001 and ISO13485 (including risk management).
More information can be obtained at the following TDK-Lambda Americas website, http://www.us.tdk-lambda.com/lp/products/qs-series.htm, or by calling 800-LAMBDA-4. Products can be configured using the “Product Quick Finder” at http://www.us.tdk-lambda.com/lp/.
