Although most relays are labeled at the bottom you can always find the 30 pin set perpendicular to pins 87 and 87a for easy identification to the power source. The square relay pinout shows how the relay socket is configured for wiring.

Single Pole Double Throw Spdt Single Pole Single Throw
Rl45 relay wiring diagram. Novita rl44 wiring diagram. If you want a normally open relay you will wire to 87. Bosch type relay wiring diagrams. Instructions for wiring a standard automotive relay with descriptions of the pin out and the schematic. Rl novita accessory relays can be installed in a variety of vehicles and are designed to reduce good 4 pin wire for fogdriving lights. Related novita rl44 wiring diagram if you desire to acquire all of these.
Our wiring tutorial shows you how to wire the most common relays found in automobiles. If you need a relay diagram that is not included in the 76 relay wiring diagrams shown below please search our forums or post a request for a new relay diagram in our relay forum. Use accessory relays when installing auxiliary lighting adding horn circuits or any other electronics to your vehicle. Relays are used to power lights fuel pumps amplifiers car alarms and other automotive accessories. Output for a relay. Click here to simplify the installation of your rl45 accessory relay and cleanup your wiring with the rs40 relay installation socket.
If you want a normally closed relay you will want to wire to 87a. I go over what each contact of the relay is for and how to understand the schematic that is. Rl44 spst relay rl45 spdt relay. This pinout image is only a 2 pole diagram for room on the page purposes but you can get the picture here with this one since a 3 pole will just have 1 more set of contacts. Dozens of the most popular 12v relay wiring diagrams created for our site and members all in one place.