Simplified Integration: Standard NPT threading and clear wiring diagrams facilitate rapid field installation

it is purpose-built to handle substantial electrical loads

the unit provides reliable protection against phase loss and sustained overcurrent conditions that can lead to winding failure

the R0059100 is designed for standing pilot systems

Direct Supercession: Replaces obsolete part number 1061249 without the need for field modifications

Siemens Industrial Controls 3RV2021-1HA10 Protector 328140-751 Simplified Integration: Standard NPT threadingThe 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