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 Instantaneous Trip, Electronic Trip
Frame Type: SG600
Maximum Breaker Current Rating: 400 Amp
Plug Current Rating: 300 Amp
Adjustable Instantaneous Trip Range: 905 to 3060 Amp
Approval: UL, CSA, IEC
Accessory Type: Plugs