788-390 WAGO Signal Relays

Wago 788-390 is a plug-in relay assembly designed for railway applications, featuring push-in CAGE CLAMP spring connections for easy installation. It operates with a rated current of 8A continuously, with specific ratings for AC and DC applications including 1.5A at 240Vac (AC-15), 1A at 24Vdc (DC-13), and can handle inrush currents up to 16A (20ms) / 12A (4s) for AC. The relay is equipped with a socket base, a red LED indicator, and is built with an electromechanical design. It supports a 12V / 10mA recommended minimum switching load and has 2C/O / DPDT (Double Pole Double Throw) contact resistance. The relay is designed to operate within an ambient air temperature range for storage of -40°C to +70°C. It offers a degree of protection rated at IP20 and has a net width of 16.8-30Vdc (24Vdc nom.), with a control voltage range of 0.7...1.25 x Uc. The relay's protection functions are specified for a 250Vac max. switching voltage, and it is designed for mounting on a DIN-35 rail. The dimensions are H86mm x W15mm x D73mm, with a width of 15mm. Contacts are made from Silver-Nickel (AgNi) to ensure durability, and the rated operating voltage (Ue) supports up to 10,000 operations, with a trip current rating for 5,000,000 operations.