The Beckett 7505P452MIU is designed for demanding applications

this switch is calibrated to open on temperature rise at 195

optimized for larger air handler units requiring rapid heat recovery

an external fuse or breaker must be installed on the 24Vac secondary side

Engineered for precise pre-mix combustion air delivery

Hartland Controls 90291 Relay 321894-708 The Beckett 7505P452MIU is designedWhen you need a dependable Hartland Controls 90291 for high duty cycle applications, this SPNO 120V relay stands as a professional grade solution for HVACR control circuits. Engineered as a general purpose relay, the 90291 features a single pole normally open configuration, making it the standard choice for switching fans, blowers, and combustion motors in residential and light commercial equipment. The 120VAC coil is designed for high efficiency