The is a high-capacity automotive relay, typically rated for 30A to 40A , used for heavy-duty applications like horns, starters, and lighting systems . It is a Single Pole Double Throw (SPDT) device, also known as a 1 Form C arrangement, meaning it can switch power between two different output circuits. Standard Wiring Configuration
Thermostat set to "Cool"
Ensure the transformer is rated for the load. The FRC1BC-2 typically requires a 40VA transformer minimum. frc1bc-2 wiring diagram
. Connect this to your control switch. When this pin receives +12V (and Pin 85 is grounded), the relay "clicks" and activates. Main Power Input (Fused) The is a high-capacity automotive relay, typically rated
This article provides a deep dive into the , breaking down every terminal, voltage check, and common wiring scenario. The is a high-capacity automotive relay