Siemens 3RV20111EA20 Motor Starter Protector 2.8-4A

Product Description

The SIEMENS 3RV20111EA20 is an S00-frame motor starter protector (MSP) rated for a current adjustment range of 2.8 to 4 amps. It combines motor branch-circuit protection and manual motor control in a single compact device, eliminating the need for a separate fuse block or circuit breaker in many applications. Designed for DIN-rail or direct mounting, this MSP provides overload and short-circuit protection for three-phase and single-phase motors in industrial control panels. Electricians and control-panel builders install this device in motor starter assemblies, typically alongside contactors in coordinated starter combinations.

This protector is suited for light-duty motor loads in commercial and industrial settings where a compact S00-frame device is required. Typical applications include small conveyor drives, pump motors, fan motors, and other fractional- to small-integral-horsepower loads where branch-circuit motor protection is required within a tight panel footprint. The 2.8 to 4 amp adjustment range allows field calibration to match the full-load amp rating of the connected motor.

Key Features

• Current adjustment range of 2.8 to 4 amps for field-matched motor protection
• S00 frame size for compact panel layouts and direct contactor coupling
• Integrated overload and short-circuit protection in a single device
• DIN-rail compatible mounting for standard industrial enclosures
• Manual motor control with local ON/OFF/TRIP indication

Compatibility

Designed as an OEM-style motor starter protector for S00-frame motor starter assemblies in industrial control panel applications.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the NEC and applicable local codes. De-energize and lock out the panel before mounting or wiring the device. Set the current adjustment dial to match the motor nameplate full-load amp rating before energizing. Do not exceed the marked current range, as improper adjustment will compromise overload protection.

Technical Specifications

• Current Adjustment Range: 2.8 to 4 amps
• Frame Size: S00
• Length: 4.724 inches
• Width: 2.067 inches
• Height: 4.193 inches
• Weight: 0.809 pounds
• Package Quantity: 1

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RV20111EA20