Honeywell 301-EM-US3 Controller R-410A Optimized Coil Sensitivity: Precision 24V

Optimized Coil Sensitivity: Precision 24V control relay ensures reliable pull-in even during minor voltage fluctuations in the control transformer circuit

Simplified installation: Equipped with 18-inch leads and a standard linkage drive for fast mounting on two-position damper configurations

Designed as a two-wire SPST controlled device

While designed as an OEM Aaon part

allowing the system to exit or enter the defrost mode based on the actual coil temperature

Honeywell 301-EM-US3 Controller R-410A Optimized Coil Sensitivity: Precision 24VThe Honeywell 301 EM US3 Controller is a central processing hub designed for mechanical room refrigerant gas detection and ventilation control. Built for wall mount applications, this unit effectively manages up to 20 remote sensors via Modbus RTU communication, ensuring comprehensive coverage of large mechanical spaces. It serves as the direct replacement for legacy models M 512426, VA301EM, and VA301EM 20, facilitating a seamless upgrade path for