CT5.121

PULS CT5.121 is a power supply unit designed for DIN rail mounting with an aluminium housing. It operates within an ambient air temperature range of -25 to +70°C and has a net width of 40mm. The unit consumes 0.56A with a 480Vac input and 0.64A with a 400Vac input for a full 12Vdc output, with a peak inrush current of 10A for both input voltages. It features an efficiency of 0.858 at 480Vac input and 0.854 at 400Vac input. The dimensions are W40mm x H124mm x D117mm. It includes a 75ms start-up delay and a rise time of 50ms under nominal input with a constant full current load and 0mF load capacitance, extending to 85ms with 8mF load capacitance. The unit is equipped with protection functions including output overvoltage protection and an active input inrush current limiter, supporting overload/short-circuit conditions with a continuous current of max. 15A. It allows for series/parallel operation to increase output power, with a back-feeding load resistance up to 25V. Power dissipation losses are 15.9W and 16.4W for 480Vac and 400Vac inputs, respectively, under full output load. The output stage capacitance is 5200µF. Electrical durability ranges from 51,000 to 430,000 hours, depending on operating conditions. Ripple is maintained at 100mVpp across a 20Hz to 20MHz range. This AC/DC power supply unit, part of the CT-series, features a DC-OK relay contact output and screw-clamp connections. It supports a wide supply voltage range of 323Vac to 576Vac, with various shutdown voltages based on load conditions. The rated current is 8A at 12Vdc within a -25 to +60°C range, adjusting with temperature and output voltage. The rated power is 96W, with an adjustable output voltage of 12Vdc to 15Vdc and minimal turn-on overshoot. Hold time is specified at 63ms and 43ms for 480Vac and 400Vac inputs, respectively.