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The ABB SRPG is a standard rating plug designed for use with SG600 series molded-case circuit breakers. Rating plugs set the continuous current rating of a circuit breaker frame, allowing one breaker frame to be configured for multiple ampere ratings without replacing the entire device. The SRPG carries a 400-amp rating in a 400-amp frame, meaning the breaker operates at full frame capacity. Electricians and electrical contractors install rating plugs during breaker commissioning or when reconfiguring existing panelboard and switchboard assemblies.
This rating plug is intended for commercial and industrial electrical distribution applications where SG600 frame circuit breakers are deployed. Typical install scenarios include main distribution panels, motor control centers, and switchboard lineups requiring field-adjustable trip ratings. The plug inserts directly into the breaker to communicate the authorized current rating to the trip unit.
Designed for use with ABB SG600 series molded-case circuit breakers at a 400-amp frame rating.
Rating plugs must be installed by a qualified electrician in accordance with NEC requirements and the breaker manufacturer guidelines. Always de-energize and lock out the circuit breaker and associated panel before inserting or removing a rating plug. Verify that the plug ampere rating matches the system design load and conductor sizing before energizing. Do not force the plug into the breaker body; proper seating is confirmed by a firm, flush fit with no gap.
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