787-821 WAGO AC/DC Power Supplies

Wago 787-821 is a power supply unit featuring a pro switch-mode AC/DC power supply unit (SMPS PSU) with capabilities for TopBoost and PowerBoost, allowing for both series and parallel operation. It operates with a supply voltage range of 120-300Vdc and offers CAGE-CLAMP spring connections for secure and reliable connectivity. The unit is designed to handle a rated current of 10A, with PowerBoost capabilities of 20A for 4 seconds, 15A for 8 seconds, and TopBoost capabilities of 60A and 40A for 25 milliseconds at input voltages less than 110Vac. It supports a wide AC supply voltage range of 85-264Vac, accommodating various international standards such as 110Vac, 120Vac, 220Vac, 230Vac, and 240Vac. The ambient air temperature for operation ranges from -25°C to +70°C, while the storage temperature range extends from -25°C to +85°C. The unit is equipped with a T 4A / 250Vac internal fuse and features for TopBoost/PowerBoost/Constant current mode, short-circuit protection, open circuit protection, and a 1.1 x Io nom (typ.) current limitation function. It is designed for mounting on a DIN-35 rail and has dimensions of H163mm x W57mm x D163mm. The power supply unit operates on a single-phase AC (1AC) or DC, with a frequency range of 50-60 Hz. It provides a 12Vdc (SELV) and an adjustable 11-18Vdc contacts coating, with a trip current rating of 35ms for a 230Vac input. The output error is less than or equal to 1%, and it operates efficiently within a humidity range of 5-96% RH without condensation. The output voltage ripple is specified at 70mVpp.