Product Overview

The Westinghouse EL3030R is a 30 A, 3-pole current limiter attachment belonging to the Series C Motor Circuit Protector family. This device serves as a current limiting accessory for circuit protection applications in industrial power distribution systems and motor control centers. The EL3030R is rated for operation at 600 VAC and is designed to be used with compatible EL frame equipment, providing supplemental current limiting protection for electrical circuits and motor feeders.

Current limiters such as the EL3030R are designed to interrupt high fault currents faster than standard circuit breakers, reducing the energy let-through during short-circuit conditions. This rapid interruption protects downstream components including contactors, starters, and control transformers from damage during fault events. The EL3030R features a 3-pole configuration, making it suitable for three-phase applications commonly found in industrial facilities.

Technical Specifications

Key Features

• 30 A current rating provides protection for motor circuits and branch feeders in industrial distribution systems.

• 3-pole configuration suitable for three-phase power systems common in manufacturing and process industries.

• 600 VAC voltage rating allows deployment in higher-voltage distribution applications.

• Series C Motor Circuit Protector design ensures proper coordination with other protection devices.

• Current limiting function reduces fault energy let-through, protecting downstream components from damage.

• Compatible with EL frame equipment for straightforward integration into existing Westinghouse assemblies.

• Serves as a precise replacement component for EL frame circuit protection systems.

Applications

The Westinghouse EL3030R current limiter is used in industrial motor control centers (MCCs), panelboards, and distribution systems requiring current limiting protection for motor circuits. Typical applications include motor feeders for pumps, fans, compressors, and conveyors where short-circuit current levels exceed the interrupting rating of standard circuit breakers.

The device is also used in replacement and maintenance applications where original EL3030R components have been removed or have failed. When installed as part of a Series C Motor Circuit Protector assembly, the current limiter works in conjunction with other protection elements to provide coordinated short-circuit and overload protection for three-phase AC motors and associated control equipment.