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Efficient Air Usage: Optimized for low-consumption airflow systems
Take-Apart Design: The slotted cover and unique internal hardware allow for rapid core replacement and easy internal cleaning during field service
While typically used in 3-pole (three-phase) applications for balanced load switching
This model is engineered for long-term durability
Is this switch compatible with 120V and 240V systems
Carrier HH12ZB280 Limit Switch 318973-401 Efficient Air Usage: Optimized forThe Carrier HH12ZB280 Limit Switch is a critical safety component designed for high temperature monitoring in Carrier, Bryant, and Payne gas furnaces and residential heating systems. This genuine OEM HVAC replacement part is engineered to open the electrical circuit when internal plenum temperatures exceed the factory defined safety threshold of 280F. It features a 40F differential, ensuring the system remains deactivated until temperatures drop to a