Heat Controller R68CA0003 Limit Switch 320735-701 This 18900-0 PennBarry part features

This 18900-0 PennBarry part features a smooth

ensuring reliable combustion safety where air density is lower

this single groove sheave is engineered for a seamless fit with 1-inch motor or blower shafts

the motor utilizes a thru-bolt mounting configuration with extended studs

Dual Voltage Versatility: Supports both 115V and 230V electrical setups for broader compatibility

Heat Controller R68CA0003 Limit Switch 320735-701 This 18900-0 PennBarry part featuresThe Heat Controller R68CA0003 Limit Switch is a critical HVAC safety control designed to prevent heat exchanger damage in gas fired furnaces and air handlers. This L170 40F limit switch features a 170? F trip point, automatically breaking the electrical circuit if internal plenum temperatures exceed safety thresholds to prevent overheating. Once the system cools to 40? F, the auto reset limit switch restores continuity, allowing the heating cycle to