Relay – Changeover 12v 5 Pin€1.00Changeover-Relay-12v-30Amp Relay - Changeover 12v 5 Pin quantity Add To Quote Part Num: 4RD003520081 Categories: Electrical & Lighting, Switches & Relays, Relays Description Description12 volt 5 Pin Changeover Relay rated at 20/40Amp.