Siemens Industrial Controls 3RV2021-1HA10 Protector 320720-756 this temperature control module provides

this temperature control module provides the voltage stability and switching reliability required for high-demand HVACR environments

this is the modulating valve body only

It ensures proper fuel-air mixture and combustion for LP operation

or visible scoring on the shaft

For techs in the field

Siemens Industrial Controls 3RV2021-1HA10 Protector 320720-756 this temperature control module providesThe Siemens 3RV2021 1HA10 Protector is a heavy duty SIRIUS 3RV2 motor starter protector designed for professional grade motor protection in industrial and HVACR environments. This Size S0 manual motor starter handles currents from 5. 5A to 8A, offering precise Class 10 thermal overload protection to prevent motor burnout during stalling or overload conditions. Engineered for short circuit protection, the unit features a high breaking capacity of up to