Siemens Industrial Controls 3RV2021-1HA10 Protector 321042-401 Verify the 48 frame and

Verify the 48 frame and 1100 RPM specs against your existing data plate before use in an air handler

maximizing motor-to-fan efficiency

and Comfortmaker HVAC systems

and 881 models

Loosening the packing gland nut slightly before adjustment can also prevent internal valve damage

Siemens Industrial Controls 3RV2021-1HA10 Protector 321042-401 Verify the 48 frame andThe 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