ABB / General Electric SGLA36AT4300C Molded Case Circuit Breaker
- 300A
- 3 Pole
- Bolt-On
Quantity
ABB / General Electric SGLA36AT4300C - 300A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
A reliable solution for commercial facilities, the GE SGLA36AT4300C is a 300A, 3-pole molded case circuit breaker from the Spectra RMS series. It utilizes a solid-state electronic trip unit with true RMS sensing for highly accurate protection. This SG-frame breaker mounts into Spectra Series panelboards and switchboards. It can be replaced by the ABB XT5H Ekip Dip LS/I breaker using a retrofit kit. Featuring a 65 kAIC rating at 480VAC, the unit delivers customizable LSI protection.Specifications
| Brand | ABB / General Electric |
|---|---|
| Series | SGLA |
| Amperage | 300A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 65kA @ 600VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Spectra Series Panelboards, Switchboards, Motor Control Centers |
| Wire Gauge | (1) 8 AWG - 600 kcmil (Cu/Al) or (2) 2/0 AWG - 500 kcmil (Cu/Al) |
| Max Wire | 600 kcmil |
| Min Wire | 8 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Lug Kits, Alarm Switch |
|---|---|
| Accessories | Rating Plug (Factory Installed), Lugs Not Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, Reverse Feed, True RMS Sensing, Solid State, Interchangeable Rating Plug |
Product FAQs
7 answersDoes the SGLA36AT4300C require a rating plug to operate?
Yes, Spectra RMS breakers require an interchangeable rating plug to establish the continuous ampere rating. This specific model uses a 400A sensor and requires a 300A rating plug, such as the SRPG400A300 or SRPG400B300, to operate at its rated 300 amps.
Can the SGLA36AT4300C be reverse fed?
Yes, Spectra RMS circuit breakers are suitable for reverse feed applications. They do not have line or load markings, meaning incoming power can be connected to either the upper or lower terminals as required by your panelboard or switchboard layout.
How does the LSI trip unit on the SGLA36AT4300C benefit system coordination?
The solid-state electronic trip unit features adjustable Long-Time, Short-Time, and Instantaneous (LSI) settings. This adjustability allows panel builders and electricians to fine-tune the trip curve, ensuring proper selective coordination with upstream and downstream protective devices.
Why might the SGLA36AT4300C arrive with ABB branding instead of GE?
ABB acquired GE Industrial Solutions in 2018. Depending on the production date, this Spectra RMS breaker may be labeled as either ABB or General Electric. Both versions are identical in form, fit, and function, and are direct drop-in replacements for existing SG-frame applications.
Is the SGLA36AT4300C compatible with standard GE enclosures?
Yes, this SG-frame breaker is designed to mount in Spectra Series panelboards, switchboards, and motor control centers. It can also be installed in individual NEMA enclosures designed for 400A or 600A SG-frame breakers.
Are internal accessories field-installable on the SGLA36AT4300C?
Yes, Spectra RMS circuit breakers are designed to allow field installation of internal accessories, such as shunt trips, auxiliary switches, and bell alarms, without requiring disassembly or removal of the breaker cover.
What is the sensor size of the SGLA36AT4300C compared to its continuous current rating?
This breaker features a 400A internal current sensor but is factory-configured with a 300A rating plug. This establishes the maximum continuous current rating at 300 amps, while utilizing the robust 400A SG-frame architecture.
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