GE SGLA36AT0400 Spectra RMS Molded Case Circuit Breaker – 400 Amp, 3-Pole, 600V, Bolt-On
GE SGLA36AT0400 Spectra RMS Molded Case Circuit Breaker – 400 Amp, 3-Pole, 600V, Bolt-On
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GE SGLA36AT0400 – Spectra RMS 400 Amp Molded Case Circuit Breaker
The GE SGLA36AT0400 is a 400-amp, 3-pole molded case circuit breaker (MCCB) from General Electric's Spectra RMS Series, rated 600 VAC with a 65 kAIC interrupting rating at 480V. Built on the SGLA frame, it features a digital, solid-state RMS sensing trip system with LSI (Long-Time, Short-Time, Instantaneous) trip functions and field-installable, front-mounted rating plugs that set the breaker's ampere rating. Its bolt-on design makes it a direct fit for GE Spectra Series panelboards, switchboards, and distribution equipment in commercial and industrial facilities.
Key Specifications
| Part Number | SGLA36AT0400 |
| Manufacturer | General Electric (GE / ABB) |
| Series / Frame | Spectra RMS, SGLA frame |
| Amperage | 400 A (rating plug) |
| Poles | 3 |
| Voltage Rating | 600 VAC |
| Interrupting Rating | 65 kAIC @ 480V |
| Trip Unit | Solid-state, RMS sensing, LSI |
| Mounting | Bolt-On |
| Certifications | UL, CSA, CE |
| Shipping Package | 10 x 8 x 8 in |
Features
- Digital, solid-state RMS sensing trip system for accurate overload and short-circuit protection
- Field-installable, front-mounted rating plugs to establish or change the ampere rating
- High 65 kAIC @ 480V interrupting capacity for demanding distribution systems
- Bolt-on construction for secure installation in GE Spectra Series equipment
- UL Listed, CSA and CE certified
Applications
The SGLA36AT0400 protects feeders and mains in commercial and industrial electrical distribution — switchboards, panelboards, motor control centers, and machinery — wherever high interrupting capacity and adjustable solid-state protection are required at up to 600 VAC. Because the Spectra RMS line is no longer in production, this breaker is a key replacement part for maintaining legacy GE distribution equipment.
Frequently Asked Questions
What is the interrupting rating of the GE SGLA36AT0400?
It is rated 65 kAIC at 480V, making it suitable for high-fault-current commercial and industrial systems.
Is the SGLA36AT0400 still manufactured?
No. The GE Spectra RMS series is obsolete, so surplus and reconditioned units like this one are the primary source for replacements in existing Spectra Series equipment.
What trip functions does this breaker provide?
The solid-state RMS sensing trip unit provides Long-Time, Short-Time, and Instantaneous (LSI) protection, with the ampere rating set by a front-mounted rating plug.