Phoenix Contact's PLC Relay accepts either a solid-state relay or an electro-mechanical relay
The PLC Relay is a pluggable quarter-inch terminal block that accepts either a solid-state relay or an electro-mechanical relay. Both the base terminal block and the pluggable relay can be ordered as a single unit. The PLC Relay is also available with switching capacities up to 10 A at 250 VAC. The PLC Relay is available in both sensor and actuator versions. In these versions, you can connect sensors and actuators to the base terminal blocks to eliminate wiring and additional output terminal blocks.