789-520 WAGO Industrial Automation Components

Wago 789-520 is a fixed-type relay module featuring CAGE-CLAMP spring connections for secure and maintenance-free connections. It is designed to handle a rated current of 16A continuously and can manage up to 120A AC inrush maximum current for 50ms. The module is equipped with a red LED for status indication and operates on an electromechanical design. It recommends a minimum switching load of 12V / 10mA. The relay provides a single-pole single-throw normally open (1NO / SPST-NO) contact type. Although it does not specify a supply voltage for AC, it operates within an ambient air temperature range for operation from -25°C to +40°C and for storage from -40°C to +70°C. The degree of protection is rated at IP20, and it has a control voltage range of 20.4-28.8Vdc (24Vdc nominal) for DC and 20.4-28.8Vac (24Vac nominal) for AC. The module's rated impulse voltage (Uimp) is 0.85...1.2 times the control voltage, and it has a rated insulation voltage (Ui) of 4 kV. The product dimensions are H90mm x W17.5mm x D55mm, with a width of 17.5mm suitable for mounting on a DIN-35 rail. The manufacturer specifies the use of Silver-Tin (AgSnO) contacts for reliability. The rated operating voltage (Ue) is 250V, and it is designed for over 10 million operations, indicating its durability for switching applications.