Relay controller with 4 outputs / 4 inputs

The device has four output channels switched by relays. All of them are configured as changeover contacts. It is fitted with an RC5 standard infrared receiver and with a PP interface. The maximum output current is 8 A per channel at up to 250 V. It also provides four isolated digital control inputs. The supply voltage is 12 V DC at 0.2 A.

Relay controller with 4 outputs and 4 inputs - view of the enclosure

Fig. The device.

Diagram of the controller with four relay outputs and four inputs

Fig. Example wiring diagram - room lighting control.

Inside the 4/4 relay controller with the output relays

Fig. For the curious - what is inside.