ABB / General Electric SGLC3604L3XX Molded Case Circuit Breaker

This unit-mount SG-frame breaker is engineered for installation within GE Spectra Series panelboards, switchboards, and motor control centers.

The LSI trip unit provides adjustable Long-Time (overload), Short-Time (delayed short-circuit), and Instantaneous (immediate short-circuit) protection. The Short-Time delay function is critical for system coordination, allowing downstream breakers to clear faults before the main breaker trips.

Yes, this breaker requires an interchangeable rating plug to establish the maximum continuous operating current. Operating the breaker without the correct rating plug installed can result in misapplication and a lack of proper overcurrent protection.

Yes. Spectra RMS molded case circuit breakers do not have line or load markings and are fully rated for reverse feed applications. Power cables or busbars can be connected to either the upper or lower terminals.

The standard lugs for this frame accommodate dual parallel runs. Each phase terminal accepts two conductors ranging from 2/0 AWG to 500 kcmil, and is rated for both copper and aluminum wire.

It indicates true RMS (Root Mean Square) sensing within the electronic trip unit. This ensures accurate overcurrent protection by correctly measuring the heating effect of the current, even when harmonic distortion is present from non-linear loads like variable frequency drives.

ABB acquired GE Industrial Solutions, which included the legacy Spectra RMS product line. Depending on the exact manufacturing date, the breaker may feature either an ABB or GE brand label, but the hardware remains identical in fit, form, and function.