GE SRPE60A50 Interchangeable Rating Plug

Description

GE SRPE60A50 Interchangeable Rating Plug

The GE SRPE60A50 is an interchangeable rating plug designed for GE Spectra RMS SE150 molded case circuit breakers. It sets the continuous ampere rating and long-time trip point of a 60 A sensor breaker frame down to 50 A without replacing the entire breaker assembly.

Product Overview & Specifications

The SRPE60A50 plugs directly into the front of compatible Spectra RMS electronic trip breakers (such as SEDA, SEHA, SELA, and SEPA models). It also includes a front-mounted adjustable instantaneous trip dial.

• Part Number: SRPE60A50
• Brand / Series: General Electric (GE / ABB) Spectra RMS
• Frame Compatibility: SE150 Frame (with 60 A current sensor)
• Plug Ampere Rating: 50 A (continuous current / long-time trip rating)
• Max Breaker Sensor Rating: 60 A
• Maximum Voltage Rating: 600 V AC
• Poles Supported: 2-Pole and 3-Pole breakers
• Instantaneous Trip Adjustment Range: 143 A (Low) to 637 A (High)
• Certifications: UL Listed

Key Advantages

• Easy Amperage Adjustments: Lets you change a breaker’s continuous current rating in the field by swapping the plug rather than buying and rewiring a whole new breaker.
• Cost-Effective Inventory: Electrical contractors and facilities can stock one 60 A sensor breaker frame and use different rating plugs to match specific load requirements.
• Adjustable Magnetic Protection: Features a built-in front dial to fine-tune the instantaneous trip threshold between 143 A and 637 A, helping prevent nuisance trips on motor or transformer inrush currents.
• NEC Code Alignment: Under National Electrical Code (NEC) rules, installing a 50 A rating plug allows downstream conductor and busbar sizing to be matched directly to the 50 A plug rating.

Installation & Usage Precautions

• Sensor Rating Match: Only install this plug into a Spectra RMS SE150 breaker equipped with a 60 A sensor. Putting a 60 A-sensor plug into a 100 A or 150 A sensor frame won’t calibrate properly or may be physically keyed out.
• Verify Cable Ampacity: Because the installed plug sets the breaker’s trip threshold, always confirm that connected cables and busbars are rated for at least 50 A before energizing.
• De-energize Before Swapping: Turn off and lock out upstream power before removing or inserting a rating plug, as removing the plug on an energized breaker can trigger an immediate trip or expose live internal trip circuitry.
• Dial Calibration: After snapping the plug securely into the breaker face, set the front instantaneous trip dial to the proper value for your load’s inrush profile.

Common Applications

• Commercial & Industrial Distribution Panels: Adapting existing SE150 branch breakers when machinery or panel loads are downgraded or reconfigured.
• Motor & Transformer Feeder Circuits: Using the adjustable instantaneous trip range (143 A–637 A) to ride through startup inrush currents while still protecting against short circuits.
• Facility Maintenance & Retrofits: Rapidly replacing damaged or outdated rating plugs in legacy GE Spectra RMS switchgear without extended system downtime.

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