Industrial DIN rail PSU family covers 75 to 480W in 30 to 72mm

Altech has a series of DIN rail power supplies that range from 32mm wide for the 75W models to 70mm for 480W versions.

Called PSC, “the series has five models ranging from 75 to 480W. All models have a universal input voltage range of 85 to 264Vac and output voltages of 12, 24 and 48Vdc, and are backed by a three-year warranty,” according to distributor Omni Pro Electronics, which is stocking the parts.

Output voltage accuracy is ±1% said Omni Pro, and the supplies can support 150% peak load for 3s. For addition current, 1+1 to N+1 operation is also supported.

Efficiency can be as high as 94%, power factor is actively controlled to above 0.95.

Protections include current limiting, output over-voltage, output over-load, output short-circuit and open-circuit.

‘DC power’ and ‘self-test’ LEDs provide visual status indication, and there is a ‘DC OK’ relay contact.

Operation is nominally over -25 to +70°C, with derating caveats at higher temperatures – see the data sheet – for example the 75W PSC-75 versions can deliver full power up to 60°C. This last number is in the normal DIN rail orientation and, unusually, Altech provides graphs for operation in other orientations that also include a second curve (A2 in PSC-75 example left) if half the expected lifespan can be tolerated (rated 25°C full-load MIL-HDBK-217F MTBF >300,000hr)

For added reliability, PCBs are conformally coated and all supplies get a full-load burn-in test.

They are UL508, UL60950-1 and EN62368-1 certified and operate to EMC standards EN55032 Class B, EN61000-3-2, Class A and EN61000-4-2, 3, 4, 5, 6, 11.

Omni Pro’s PSA paoer supply web page can eb found here – the distributor is based in Addison, Texas.
The data sheet with the interesting derating curves is here on Altech’s site