787-1642 WAGO AC/DC Power Supplies

Wago 787-1642 is a classic switch-mode AC/DC power supply unit (SMPS PSU) featuring TopBoost, with capabilities for series and parallel operation. It operates on a supply voltage range of 450-800Vdc and 320-575Vac (380Vac / 400Vac / 415Vac / 480Vac), and is designed for a rated current of 20A and a rated power of 480W. The unit is equipped with CAGE-CLAMP spring connections for secure and maintenance-free wiring. It is designed to operate within an ambient air temperature range of -25°C to +70°C and can be stored in temperatures ranging from -25°C to +85°C. The power supply unit offers protection features including constant current, short-circuit, open circuit protection, and a 1.1 x Io nom (typ.) current limitation function. It has a degree of protection rated at IP20 and is designed for mounting on a DIN-35 rail. The dimensions are H127mm x W80mm x D180mm, suitable for 3-phase AC (3AC) or DC operation. The unit provides a response time of 25ms with a 500Vac input and 15ms with a 400Vac input. It is part of the EPSITRON Classic series and is designed to be replaced by a 24Vdc (SELV) or 23-28.5Vdc (adjustable) model. The power dissipation/losses are specified for 3 x 1.21A (400Vac) and 3 x 1.03A (500Vac) operations, with an output error of ≤1%. The unit is designed to operate in environments with 5-96% relative humidity, with no condensation permissible, and has an output voltage ripple of 15mVpp.