All Spectra, Power Break and Power Break Ii Circuit Breakers Use UL Listed Interchangeable Rating Plugs to Establish or Change the Long Time Trip Point of the Circuit Breaker; The Key Advantage of the Rating Plug is the Flexibility of Interchangeable Rating Plugs Across the Permissible Current Ratings of a Given Circuit Breaker Frame; Since the Installed Rating Plug Establishes the Ampere Rating of the Breaker, the Installer Must Verify the Adequacy of the Connected Cable and/or Bus Bar Ampacity; The National Electric Code Allows Cable Size to be Matched to the Ampere Rating Established by the Rating Plug; Suitable for Reverse Feed

Specifications:

Type: Adjustable
Frame Type: SF250
Maximum Breaker Current Rating: 250 Amp
Plug Current Rating: 125 Amp
Adjustable Instantaneous Trip Range: 370 to 1250 Amp
Approval: UL, CSA