GE SRPE100A90 Circuit Breaker Rating Plug

Description

GE SRPE100A90 Circuit Breaker Rating Plug

Product Dimensions：

The GE SRPE100A90 is a electronic rating plug manufactured by General Electric (now ABB Industrial Solutions) for use with Spectra RMS molded case circuit breakers (MCCBs).

Product Detailed Description

The SRPE100A90 is a SRP (Spectra Rating Plug) designed specifically for SE150 frame circuit breakers equipped with MicroVersaTrip or Spectra RMS trip units. Rating plugs define the actual continuous current rating (I_n) of a circuit breaker relative to its maximum frame rating.

Installing the SRPE100A90 into a compatible 150 A frame circuit breaker sets the maximum continuous ampere rating of that breaker to 90 Amperes. This allows for easy field rating adjustments without needing to replace the entire circuit breaker unit or disturb terminal wiring.

Technical Parameters

Product Advantages

• Field Flexibility: Allows fast adjustments of circuit breaker ampere ratings without removing or replacing the heavy circuit breaker assembly.
• Cost Savings: Significantly reduces inventory costs by using standard breaker frames that adapt to lower amp ratings simply by changing the rating plug.
• Interchangeability: Simple snap-in installation design streamlines panelboard assembly and field upgrades.
• High Accuracy: Electronic trip unit integration ensures precise long-time and short-time current monitoring compared to traditional thermal-magnetic elements.

Important Considerations & Precautions

• Frame Matching: The “SRPE” prefix is designated specifically for SE Frame (SE150) circuit breakers. Do not attempt to force this plug into SK, SG, or SF frame breakers.
• Proper Seating: Ensure the rating plug is fully seated and locked in position before energizing the breaker. An unseated or missing rating plug will cause the electronic trip unit to trip or fail to clear faults properly.
• De-energize Before Maintenance: Always trip and de-energize the circuit breaker before removing or replacing the rating plug to avoid arcing or damaging internal electronics.
• Rejectability Pins: GE rating plugs feature mechanical rejection pins to prevent installing an incorrect rating plug into an incompatible trip unit. Never modify or remove these pins.

Product Applications

The GE SRPE100A90 is widely used in commercial and industrial low-voltage power distribution systems:

• Industrial Control Panels (ICPs): Sizing feeder and branch circuit protection down to 90 A for specific motor control center (MCC) feeds or machinery load lines.
• Commercial Panelboards & Switchboards: Adjusting circuit protection ratings during tenant fit-outs or equipment upgrades.
• Retrofit & Maintenance: Serving as a direct replacement component for existing GE Spectra RMS SE150 breaker assemblies in healthcare, facility, and data center applications.

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