Power Electronics / Power Management


DIN rail power supply

30 January 2019 Power Electronics / Power Management

Accutronics announced that it has been formally appointed as the exclusive representative of TDK-Lambda and its entire range of products for the South African territory. Together with this announcement, Accutronics has launched the new TDK-Lambda DRF960 24 1, a DIN-rail mounting AC-DC power supply rated at 24 V / 40 A (960 W) with a 60 A (1 440 W) peak for 4 seconds.

The product has a very narrow 110 mm width, freeing additional space for other DIN-rail mount assemblies. With an efficiency of 95%, significantly less internal heat is generated, resulting in cooler electrolytic capacitors. Operating field life is calculated at greater than 10 years at 75% load, 40°C ambient and 230 V a.c. input. This energy efficient power supply is suitable for a wide range of industrial applications including factory automation, process control and test and measurement equipment.

The 24 V output is adjustable from 24 to 28 V, using the front panel potentiometer or an external 5 to 6 V d.c. source, to compensate for blocking diodes or FETs in redundant configurations. Also provided as standard is a DC OK relay contact rated at 30 V / 1 A, and remote on/off functionality. Power consumption is less than 1 W to reduce energy consumption when the output is inhibited. Up to five units can be connected together in parallel when set in droop mode current share.

The DRF960 is housed in a robust metal enclosure, measuring 123,4 mm in height, 139 mm deep and a width of just 110 mm. The power supply can operate from a wide-range 180 – 264 V a.c., 47 – 63 Hz input. Input to output isolation is 3000 V a.c., input to ground isolation is 1500 V a.c., and output to ground isolation is 500 V a.c. The unit is rated for operation in -25°C to +70°C ambient temperatures (40°C cold start), derating linearly above 60°C to 50% load at 70°C.

The unit is safety certified to IEC/EN/UL/CSA 60950-1, UL 508 and is CE marked for the Low Voltage, EMC and RoHS Directives. It meets EN 55032-B radiated and conducted emissions, and complies with the EN 61000-4 immunity standards.

For more information contact Tobie Muller, Accutronics, +27 11 782 8728, tmuller@accutronics.co.za, www.accutronics.co.za



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