Lambda Electronics Inc. (San Diego, CA) introduced two power supply series that can deliver 200 percent of the nominal current rating for up to 10 seconds. The new 150 W ZWS150PAF and the 240 W ZWS240PAF Series are suitable for powering motors and printers where a peak current demand is needed for a short duration.
Both series accept a wide range of input voltage - from 85 Vac to 265 Vac - and contain active power-factor correction circuitry to meet EN61000-3-2 standards. The units are available with 24 V, 36 V or 48 V outputs, and with peak output powers of up to 480 W. The ZWS150PAF can deliver a continuous 150 W convection cooled at 50 °C, or 200 W with forced-air cooling at 1.5 m/s. The ZWS240PAF yields 240 W convection or 300 W with forced air.
Three different mechanical configurations are offered - open-frame, L-bracket or fully enclosed - with the units measuring 3.15 in x 1.57 in x 8.2 in (150 W Series) and 3.7 in x 1.77 in x 8.74 in (240 W Series) in the open-frame package. The supplies are available with Molex, JST or screw-terminal connections. Both series meet Class B EMI standards - radiated and conducted - with a low earth-leakage current of 0.22 mA at 230 Vac, 60 Hz.
The ZWS150PAF and ZWS240PAF are available now, with prices starting at $120 in single-unit quantities.
