Vf4 45F11 Wiring Diagram. Cencom™ sapphire siren/light control system. Web power relay f4/vf4 with quick connect terminals power relay f4/vf4 with pcb terminals *) for the make contact (2 x 87), pin 87a = 87 for the double make contact,. Vf4 45f11 Wiring Diagram from diagramweb.net Cencom™ sapphire siren/light control system. Web power relay f4/vf4 […]