Part of GE's Spectra RMS line, the SGPC3604L4XX is a 400A, 3-pole MCCB for industrial applications. It delivers reliable power distribution within GE panelboards and switchboards. This unit-mount breaker replaces older SG frames. For modern upgrades, it can be substituted with the Tmax XT5 series using a retrofit kit. Equipped with a microEntelliGuard trip unit, it offers adjustable LSIG settings. Rated 100kAIC at 480V, it provides superior current-limiting performance.
Current Limiting, Extra High Interrupting Capacity, HACR Rated, Reverse Feed, True RMS Sensing, Interchangeable Rating Plugs
Product FAQs
4 answers
Does the SGPC3604L4XX require a rating plug to operate?
Yes, all GE Spectra RMS circuit breakers with electronic trip units require a separate rating plug, such as the SRPG400A400 or GTP0400U0410, to establish the continuous current rating. The breaker will not function properly without one installed.
Is there a modern replacement for the legacy SGPC3604L4XX breaker?
The GE Spectra RMS series is a legacy product line. For modern upgrades, ABB offers the Tmax XT5 series, which can replace the SG frame in existing panelboards and switchboards using an approved retrofit kit.
What protection functions are included in the LSIG trip unit?
The solid-state electronic trip unit provides adjustable protection for Long-Time overload, Short-Time short circuit, Instantaneous high-level short circuit, and Ground-Fault conditions. This allows for precise coordination in commercial and industrial electrical distribution systems.
What wire sizes are supported by the standard lugs for this SG frame breaker?
When equipped with standard SG frame lugs, the breaker accepts wire gauges of (1) 8 AWG to 600 kcmil or (2) 2/0 AWG to 500 kcmil for copper or aluminum conductors. Note that this unit-mount breaker typically requires a separate lug kit for proper termination.
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