GE SRPE100A100 Circuit Breaker Rating Plug

Description

GE SRPE100A100 Circuit Breaker Rating Plug

Product Dimensions：

The GE / ABB SRPE100A100 is an interchangeable rating plug designed for GE Spectra RMS™ series molded case circuit breakers (MCCBs). Manufactured by General Electric (and now distributed under ABB’s electrification division), this component sets the long-time trip threshold (I_n) of an electronic trip unit to 100 Amperes.

Detailed Description

The SRPE100A100 rating plug serves as a key calibration element within GE’s electronic protection platform (such as MicroVersaTrip® Plus or PM solid-state electronic trip units). Instead of replacing the entire circuit breaker frame when downrating or adjusting protection thresholds, technicians plug this unit into the front face of a compatible SE150 frame circuit breaker (e.g., SEDA, SEHA, SELA, or SEPA models). It dictates the maximum continuous current carrying capacity of the trip system.

Technical Parameters

Key Advantages

• Interchangeable Flexibility: Allows easy modification of the breaker’s continuous current rating without removing the breaker frame from the electrical enclosure or panelboard.
• Cost Efficiency: Significantly reduces downtime and replacement costs when downrating circuits to match modified load demands or downsized wire gauges.
• NEC Cable Sizing Optimization: Under National Electrical Code (NEC) guidelines, conductors can be sized based on the continuous ampere rating established by the rating plug rather than the maximum frame rating.
• Secure Fit: Features rejection keying to prevent insertion into incompatible trip unit frames or incorrect sensor sizes.

Important Considerations & Precautions

• Conductor Sizing Verification: Whenever a rating plug is changed, installers must ensure that the downstream power cables and bus bars meet or exceed the ampacity established by the new plug rating.
• Frame Compatibility: The SRPE100A100 is specifically designed for SE150 frames. Do not attempt to force the plug into SF, SG, or SK frame breakers.
• De-energize Before Installation: Always isolate and de-energize the circuit breaker prior to inserting, removing, or adjusting electronic trip unit rating plugs to prevent arc flash hazards or trip unit damage.
• Firm Insertion: Ensure the plug is fully seated and securely fastened; a loose rating plug may cause the electronic trip unit to trip as a open-circuit safety measure.

Product Applications

• Commercial Panelboards & Switchboards: Setting customized protection points for feeder and branch circuits within commercial distribution networks.
• Industrial Motor Control Centers (MCC): Downrating protective thresholds for smaller motor loads operating on standardized 150 A breaker frames.
• Facility Upgrades & Modifications: Reconfiguring power distribution setups during tenant build-outs or machinery relocations without needing full gear replacements.

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