GE SGLA36AT0400 - 400 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

The GE SGLA36AT0400 is a high-capacity, bolt-on molded case circuit breaker built to guard large branch circuits with precision. With a 400A rating and a 600V maximum, this 3-pole device is designed to handle demanding commercial and light industrial panelboards and loadcenters, delivering reliable protection where power quality and safety matter most.

Why this bolt-on design matters

• Rigid, vibration-resistant bus connection thanks to secure bolt-on mounting, helping maintain solid electrical contact even in environments with equipment movement or vibration.
• Thermal-magnetic trip unit provides stable, repeatable protection—the thermal element handles nuisance overloads, while the magnetic element responds quickly to short circuits, reducing damage risk to downstream gear.
• Seamless compatibility with matching GE OEM loadcenters and panelboards ensures straightforward integration into existing electrical distributions.

Real-world use cases

• Main feeder protection in commercial panelboards serving large electrical loads such as HVAC, lighting banks, and motors.
• Protection for service disconnects and critical branch circuits in light industrial environments where reliability is essential.
• Retrofits or upgrades in facilities that require a robust, large-current breaker with a secure mounting method.

What makes it different from everyday breakers

• Designed specifically for bolt-on installation, delivering a sturdy connection that remains dependable under vibrational stress and frequent operation.
• 3-pole configuration supports three-phase systems commonly found in commercial and light industrial settings, enabling balanced protection across phases.
• Thermal-magnetic protection targets both overcurrent and short circuits with one integrated unit, simplifying maintenance and reducing the likelihood of mis-trips.

Technical snapshot

• Manufacturer: GE
• Part Number: SGLA36AT0400
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 400A
• Voltage Rating: 600V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for electricians and facilities managers who demand dependable protection for large-diameter feeders and critical loads, the GE SGLA36AT0400 combines robust construction with precise, repeatable tripping performance. When you install this breaker in the right GE-compatible panelboard, you’re investing in long-term protection, fewer nuisance trips, and a safer electrical distribution system.