859-308 WAGO Signal Relays

Wago 859-308 is a fixed-type relay module featuring CAGE-CLAMP spring connections for secure and efficient wiring. It is designed to handle a rated current of 5A continuously and can manage up to 20A AC inrush maximum current for 20ms. The module is equipped with a red LED for status indication and operates on an electromechanical design. It recommends a minimum switching load of 20V / 10mA / 24V / 1mA. The relay provides a 1C/O / SPDT (Single Pole Double Throw) contact configuration. It is designed to operate within an ambient air temperature range of -40°C to +50°C and can be stored in temperatures ranging from -40°C to +70°C. The control voltage specifications include 187-264Vdc (220Vdc nominal) for DC and is suitable for single-pole / 1-pole (1P) applications in AC. The module has a net height of 91mm, a width of 6mm, and a depth of 56mm, making it compact for DIN-35 rail mounting. It features Silver-Tin (AgSnO) contacts for the switching mechanism, ensuring a rated insulation voltage (Ui) of 4 kV and a maximum switching voltage of 250Vac. The relay's operating voltage (Ue) is rated at 250V, with a control voltage (AC) designed for efficient power consumption. It has a short circuit breaking rating with a rated impulse voltage (Uimp) of 0.85...1.2 x Uc. The relay's performance is characterized by a switching time of 15ms for contacts closing and 25ms for contacts opening, supporting up to 5 000 000 operations with a durability of 50 000 operations for Normally Closed (NC) circuits. It is designed to operate within a humidity range of 5-95% RH without condensation.