Carpoint 5 pin 12 Volt relay to switch a heavy energy consumer with up to 30 Amps with a small or sensitive switch. This relay has an extra connection point which makes it possible to switch between 2 accessories.  The relay has 5 connections; Input control current (switch), output control current (ground), input main current (power supply), output main current (accessory) and output main current (accessory that always has power supply as standard). Always disconnect the minus (-) before installing the relays and make sure the power wires are fused.