Carrier 330539-757 Coupling Box L99H008 Industrial Voltage: Specific 460V 60Hz

Industrial Voltage: Specific 460V 60Hz configuration tailored for heavy-duty commercial HVAC applications

The SPDT electrical configuration allows for flexible wiring as either a normally open or normally closed circuit

Key Benefits for HVAC Professionals Exact OEM Calibration: Pre-set at

Whether you are performing a furnace harness replacement or a new system integration

A 40VA rating represents the maximum load capacity

Carrier 330539-757 Coupling Box L99H008 Industrial Voltage: Specific 460V 60HzThe Carrier 330539 757 Coupling Box is a critical OEM replacement component designed for 40 inch tall condensing gas furnaces. This genuine furnace coupling box kit replaces older ICP part numbers, including 320721 768, ensuring a precise fit and restoring the factory standard seal on the secondary heat exchanger. For technicians working on Carrier, Bryant, or Payne furnaces, this kit is essential when addressing common moisture or combustion air