Carrier HH79NZ074 Sensor 320788 702 Heavy Duty Construction: Built with a Heavy Duty Construction: Built with a 30 Amp 2 Pole configuration to withstand high inrush currents during compressor startup the 8604 100BX features heavy duty insulator supports and high grade resistance wire to prevent premature failure from thermal stress this 10k ohm thermistor sensor ensures tight HVAC zone control and is essential for maintaining optimal thermal comfort in commercial multi zone applications Simplified Installation: Standard wall plate mounting and non polarized wiring facilitate rapid field deployment and integrated control integration