Know Your Potential Starting Relays - ACHR News Aug 28, 2002Knowing the sequence of operation for this type of starting relay can help you diagnose, confirm, or rule out certain service problems. Know Your Potential Starting Relays This website requires certain cookies to work and uses other cookies to help you have the best experience.[PDF] Furnas Definite Purpose Contactors - easternref Furnas Definite Purpose Contactors . 1 Pole Part # Coil Voltage Full load amps. 61320 24 30 Mars Transformers . Foot Mount . Heavy Duty Fan Relays . Used on heating and A/C equipment to provide switching . of heavier loads with a compact size relay. 3 amp . minimum duty is recommended for best results. Part # Coil Volt. How To Wire A Relay The square relay pinout shows how the relay socket is configured for wiring. 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. Wiring Diagram - Everything You Need to Know About Wiring Wiring diagrams show how the wires are connected and where they should located in the actual device, as well as the physical connections between all the components. How is a Wiring Diagram Different from a Pictorial Diagram? Unlike a pictorial diagram, a wiring diagram uses abstract or simplified shapes and lines to show components.