89NG03 VEW NG8903 RED | ABB Power supply Module

The VEW NG 89 03 RED generates two stabilized DC voltages, +5V (UD) and +24V (UB), while also providing the through connection for two voltages, +24V (US) und -24V (UV).The redesign is a fully plug-and-play compatible device to replace the 89 NG 03 devices from ABB.The VEW NG 89 03 RED runs on input DC voltage of 19…33V.The feed comes via the plug X1 on the front plate.The feed comes via contact 1: 24V (USE) and 2: 0V (Z) for the output voltage US against Z and contact 4: 24V (USE) and 5: 0V (Z) the potential-free and regulated voltages UD and UB.Contact 3 carries the UV voltage to the outlet, has no internal fuse and is not operated.Contact 6 is connected to the housing.The feed branch contact 4 contains a Schottky diode (V1) connected in series to protect against wrong polarity of the supply voltage.The downstream electrolyte capacitors act as buffers.The UD, UB and US output voltages are monitored, regulated and controlled