XT40.482

PULS XT40.482 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 with a supply voltage of 3x432-528Vac (440Vac / 480Vac / 500Vac / 525Vac nominal; 47-63Hz), a turn-on voltage of 3 x 390Vac, and a shutdown voltage of 3 x 355Vac. The unit's dimensions are W96mm x H124mm x D159mm, and it is housed in an aluminium casing with screw-clamp connections for installation. It supports a rated current of 20A at 48Vdc and is designed for DIN rail mounting in a 3-phase (3AC) network. The XT40.482 can operate in ambient air temperatures ranging from -25 to +70°C. It has a peak inrush current consumption of 4A (at 3x480Vac input), a rated power of 960W at 48Vdc (1200W for typ. 15s), and includes protection functions such as output overvoltage protection (57.2Vdc max.) and overload/short-circuit current protection. The unit is not intended for parallel operation to increase output power but can be used in a 1+1 redundancy setup for higher system availability. It features an efficiency of 0.96 (at 3x480Vac input), a 350ms start-up delay, and a hold time of 3.1ms at 3x480Vdc input. Power dissipation losses are 40W at full output load, and it has an electrical durability of up to 15 years or 131400 hours at 25°C with a 20A output. The output stage capacitance is 7600µF, and the ripple is 2500mVpp (20Hz...2KHz; 50Ω).