ABB / General ElectricSGLC3606L5XX
ABB / General Electric SGLC3668L4RXC Molded Case Circuit Breaker
- 600A
- 3 Pole
- Unit Mount
ABB / General Electric
SGLC3668L4RXC
Molded Case Circuit Breaker
Brand
ABB / General Electric
SKU
SGLC3668L4RXC
Quantity
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ABB / General Electric SGLC3668L4RXC - 600A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for demanding environments, the GE SGLC3668L4RXC is a 3-pole, 600A electronic trip MCCB. It belongs to the Spectra RMS family and offers 100% rated performance. This bolt-on breaker mounts into GE Spectra Series panelboards, switchboards, and motor control centers for heavy-duty three-phase systems. The solid-state trip unit features adjustable LSIG functions with ground fault protection. It incorporates RELT technology and delivers 65kAIC at 480VAC.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | SGLC |
| Amperage | 600A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 35kA @ 600VAC |
| Amperage Range | 300-600A |
|---|
| Terminal Type | Lugs |
|---|---|
| For Use With | GE Spectra Series Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (2) 2/0 AWG-500 kcmil (Cu/Al) |
| Max Wire | 500 kcmil |
| Min Wire | 2/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSIG |
| Trip Function | Long-Time, Short-Time, Instantaneous, Ground Fault |
| Trip Adjustability | Adjustable |
| Trip Unit Model | microEntelliGuard |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Lug Kit, Rating Plugs, Bell Alarm, Mechanism Operator |
|---|---|
| Accessories | Lugs Not Included, Rating Plug Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489, HACR |
| Approval | CE, CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | 100% Rated, HACR Rated, Reverse Feed, True RMS Sensing, Interchangeable Rating Plug, Reduced Energy Let-Through (RELT), Current Limiting |
Product FAQs
6 answersDoes the SGLC3668L4RXC require a rating plug to operate?
Yes, all GE Spectra RMS SG-frame circuit breakers require a front-mounted interchangeable rating plug to establish the breaker's continuous ampere rating. For a 600A configuration, an SRPG600A600 rating plug is required.
What protective functions are included in the SGLC3668L4RXC trip unit?
This breaker features an advanced microEntelliGuard digital solid-state trip unit with adjustable LSIG functions, providing Long-Time, Short-Time, Instantaneous, and Ground-Fault protection. It also incorporates RELT (Reduced Energy Let-Through) technology to mitigate arc flash hazards during maintenance.
Is the GE Spectra RMS SGLC3668L4RXC still actively manufactured?
No, the GE Spectra RMS series is obsolete. ABB has replaced the SG-frame breakers with the modern Tmax XT series, specifically the XT5 frame, for new installations and system upgrades.
What enclosures and systems are compatible with this breaker?
This unit-mount, bolt-on circuit breaker is specifically designed for integration into GE Spectra Series panelboards, switchboards, and motor control centers.
What wire sizes are accepted by the standard lugs on this 600A breaker?
The factory lugs are designed to accept two cables per phase, accommodating wire sizes from 2/0 AWG to 500 kcmil for both copper and aluminum conductors.
How does true RMS sensing benefit the SGLC3668L4RXC?
The digital solid-state trip system uses true RMS sensing to accurately measure both sinusoidal and non-sinusoidal currents. This prevents nuisance tripping caused by high-harmonic loads, such as variable frequency drives, welding equipment, or discharge lighting.
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