Astec Embedded Switch Mode Power Supply (SMPS), LPS253-CEF, 12V dc, 21A, 250W, 1 Output, 120 → 300 V dc, 85

250W switch mode AC/DC power supply with universal input, adjustable single output and 2 supervisory outputs of 5V and 12V. This AC/DC power supply has active power factor correction, a low output ripple and a built-in EMI filter. Stock numbers 289-5131, 289-5147, 289-5153 and 289-5169 are supplied with a dual end mounted fan and AC inlet.

Remote sense
Single wire current sharing
Power fail and remote inhibit
Built-in EMI filter
Efficiency of 75% typical at full load
Overvoltage, overload and thermal protection
2 supervisory outputs 5V and 12V
Safety ground leakage current of <0.5mA @ 50/60 Hz, 264 VAC input
Active power factor correction compliance to IEC EN6100-3-2
EMC compliance to FCC Class B conducted and radiated, CISPR 22 Class B conducted and radiated, EN55022 Class B conducted and radiated, VDE 0878 PT3 Class B conducted and radiated

These AC/DC power supplies are not convection rated therefore stock numbers 192-1201, 192-1223, 192-1239 and 192-1267 which are not supplied with a fan require the user to provide 30CFM forced air cooling through the length of the power supply.
Derating from 50 to 70°C is 2.5% per °C.
Suitable connecting kit for this AC/DC power supply: stock number 151-717

VDE: 0805/EN60950 (IEC950), UL1950, CSA 22.2-234 level 5, NEMKO: EN 60950/EMKO-TUE (74 sec) 203, BABT: EN60950/BS7002

VDE; UL Recognised; CSA Certified; NEMKO; CB; BABT

VDE; UL Recognised; CSA Certified; NEMKO; BABT

EN61000-3-2