857-604 WAGO Signal Relays

Wago 857-604 is a timing relay assembly designed for railway applications, featuring push-in CAGE CLAMP spring connections for easy installation. It operates with a continuous rated current of 6A, and specific ratings for different conditions: 3A at 250Vac (AC-15), 2A at 24Vdc (DC-13), and a maximum inrush current of 20A for AC. The relay offers ON-delay switching with a single pole double throw (SPDT) contact configuration, supported by a yellow LED indicator. Its electromechanical design ensures compatibility with a recommended minimum switching load of 10V / 10mA / 24V / 1mA. The device is built to withstand ambient air temperatures ranging from -25°C to +70°C for storage, with a degree of protection rated at IP20. It has a control voltage range of 16.8-31.2Vdc (24Vdc nominal) and can handle a rated impulse voltage of 4 kV. The relay's dimensions are 94mm in height, 6mm in width, and 81mm in depth, with a net width adjustable between 0.7 and 1.3 times the control voltage. It features silver-tin (AgSnO) contacts within a polyamide (PA) 66 housing, ensuring durability and a rated operating voltage (Ue) for reliable performance. The control circuit's rated current is adjustable over time ranges from 0.1 seconds to 300 minutes, accommodating a wide range of timing requirements. The relay is designed for mounting on a DIN-35 rail, highlighting its versatility in installation and integration into various systems.