XT40.241

PULS XT40.241 is a power supply unit part of the X-series, designed to function as an AC/DC PSU/converter with a semi-regulated 25% power reserve and a DC-OK relay contact output. It operates on a supply voltage of 3x360-440Vac (380Vac / 400Vac / 415Vac nominal; 47-63Hz), with a turn-ON voltage of 3 x 325Vac and a shutdown voltage of 3 x 295Vac. The unit's dimensions are W96mm x H124mm x D159mm, and it is encased in an aluminium housing with screw-clamp connections for installation. It has a rated current of 40A at 24Vdc and is designed for DIN rail mounting in a 3-phase (3AC) network. The ambient air temperature for operation ranges from -25 to +70°C. The XT40.241 has a net width of 96 mm and a peak current consumption of 4A max. inrush at 3x400Vac input. Its rated power is 24W/+60°C...+70°C (derating) 960W at 24Vdc and 1200W for a typical 15s. Protection functions include output overvoltage protection (29.9Vdc max.), active input inrush current limiter, and overload/short-circuit current protection. It supports 1+1 redundancy for higher system availability and is resistant to back-feeding loads up to 28.9V. The efficiency is rated at 0.955 with a 3x400Vac input, and it features a 400ms start-up delay, 40ms rise time with nominal input at constant full current load without load capacitance, and 70ms with 40mF load capacitance. The output voltage is fixed at 24Vdc with a 480mV turn-ON overshoot, and it has a 2ms buffer time at 3x400Vdc input. Power dissipation/losses are 45.2 W at full output load with 3x400Vdc input. Electrical durability is rated at 51000 hours at 40°C and 142000 hours at 25°C, with a 40A output and 3AC 400Vdc input. The output stage capacitance is 20000 µF, and the ripple is 1500mVpp (20Hz...2KHz; 50Ω).