As an interface, interface relays connect the electronic control level, for example PLC, with the level of the sensors/actuators. They perform various functions: switching of direct or alternating voltage loads with different ohmic, 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 12 A, amplifying weak control signals, potential isolation of control and load circuits and signal multiplication. The CR-M series has 13 different coil voltages with 2-4 changeover contacts. A built-in test button for manual actuation and locking of the output contacts, as well as relay variants with or without built-in LED can be selected. Two base variants are available: standard base and logical base. Pluggable function modules such as reverse polarity protection / freewheeling diode, RC elements or overvoltage protection expand the areas of application of the pluggable miniature relays.
| Property | Value |
| Number of contacts as changeover contact: | 2 |
| Rated control supply voltage Us at AC 50 Hz: | 110 V |
| Rated control supply voltage Us at AC 60 Hz: | 110 V |
| Type of voltage for actuation: | AC |
| Design of the electrical connection: | Plug connection |
| Drive, polarity: | polarized |
| Height: | 35.6 mm |
| Width: | 21.2 mm |
| Depth: | 27.5 mm |
| Switching behavior of the drive: | monostable |
| Type of switching contact: | single contact |
| With positively guided contacts: | no |
| With removable terminals: | no |
| Complete device with base: | no |
| Protection class (IP): | IP40 |
| Nominal current: | 12 A |
| With LED display: | yes |
