ABB Stotz S&J interface relay, pluggable CR-S024VDC1R. Manufacturer: ABB Stotz S&J. Designation: Interface relay, pluggable. Rated current: 6 A. Rated control supply voltage Us at AC 50 Hz: 0 V. Rated control supply voltage Us at AC 60 Hz: 0 V. Rated control supply voltage Us at DC: 24 V. Voltage type for actuation: DC. Actuator, polarity: Polarised. Actuator switching behaviour: Monostable. Number of contacts as change-over: 1. With positively driven contacts: No. Type of switching contact: Single contact. Complete unit with base: No. With LED display: No. Material of contact coating: Other. Material of contact: Other. Protection class (IP): IP20. Width: 5 mm. Height: 15 mm. Depth: 28 mm.

As an interface, interface relays connect the electronic control level, such as PLC, with the level of the sensors/actuators. They perform various functions: Switching of DC or AC loads with different resistive, inductive, and capacitive components; switching in the voltage range from a few mV to 250 V; switching in the current range from a few mA to 6 A; amplification of weak control signals; potential separation of control and load circuits; and signal multiplication. The CR-S series has five different coil voltage ranges with one changeover contact, available in standard or hard gold-plated versions. Two variants are offered: complete variants or freely selectable bases and plug-in relays.