ABB Stotz S&J interface relay, pluggable CR-P012DC1. Manufacturer: ABB Stotz S&J. Designation: Interface relay, pluggable. Rated current: 16 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: 12 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 device with base: No. With LED display: No. Material of contact coating: Other. Material of contact: Other. Protection class (IP): IP67. Width: 12.7 mm. Height: 15.7 mm. Depth: 29 mm.

As an interface, interface relays connect the electronic control level, e.g., 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 16 A, amplification of weak control signals, potential separation of control and load circuits, and signal multiplication. The CR-P series has 9 different coil voltages with 1-2 change-over contacts. Two socket variants are offered: standard socket and logical socket. Pluggable function modules such as reverse polarity protection, free-wheeling diode, LED module, RC elements, overvoltage protection, or time modules extend the application areas of the pluggable PCB relays.