Wiring a rib relay can be a tricky task for even the most experienced electricians; however, getting it right is essential for maintaining electrical circuit protection and preventing power surges. To successfully wire a rib relay, one must first understand the key elements of its design. A rib relay consists of two contacts: a normally-closed contact and a normally-open contact. When an electric current is applied to the coil, the normally-closed contact opens, allowing electricity to flow, while the normally-open contact closes, completing the circuit. Taking the time to prepare and properly wire a rib relay can ensure safe and efficient operation of any machinery or system that requires it.