GE SGDA32AT0400 400A 3P 240V Circuit Breaker, Bolt-On | AmpState

Meet the GE SGDA32AT0400 400A 3P 240V Bolt-On Circuit Breaker — a robust, ready-to-deploy protection device designed for dependable performance in panelboards, load centers, and distributed electrical systems. Tailored for environments where a direct part-number match matters, this GE breaker streamlines inventory and installation without sacrificing safety or reliability.

Key specifications at a glance

• Manufacturer: GE
• Part Number: SGDA32AT0400
• Type: Circuit Breaker
• Amperage: 400 A
• Poles: 3
• Voltage: 240 V
• Mounting: Bolt-On

What makes this breaker stand out

• Bolt-On reliability — a sturdy mounting method that provides a secure, vibration-resistant connection suitable for demanding electrical environments.
• High-current protection — 400 A capacity for heavy-load, three-phase circuits, helping prevent overcurrent damage in industrial panels and service equipment.
• Direct part-number match — specifically selected to align with GE panelboards and load centers that accept SGDA-series breakers, simplifying stock management and replacements.
• Versatile compatibility — designed for use in panelboards, load centers, and distributed electrical distributions where reliable 3P protection is required.
• AmpState availability — sourced through AmpState, offering a practical path to procurement and inventory planning for maintenance teams and panel builders.

Ideal use cases

• Retrofits and upgrades in GE-compatible panelboards where a 3-pole, 400A breaker is needed to protect large three-phase feeders.
• Spare part inventory for service fleets and maintenance teams specializing in electrical distribution systems.
• New installations in manufacturing lines or data centers that require robust main or distribution protection at 240V.

Why customers choose this GE breaker

Instead of generic, one-size-fits-all breakers, the SGDA32AT0400 provides a precise fit for GE-centric panels, reducing compatibility guesswork and downtime. The bolt-on design simplifies field replacements, allowing technicians to secure the breaker quickly with minimal tools, while the 3-pole, 400A configuration delivers reliable protection for critical three-phase circuits. For engineers and electricians, this means fewer delays during installation or maintenance and more predictable performance under load.

Practical tips for installation and care

• Always verify panel labeling to confirm the SGDA-series bolt-on breaker is the correct match for your GE equipment.
• Torque the mounting hardware to the manufacturer’s specifications to ensure a solid electrical connection and minimize loosening from vibration.
• Ensure the surrounding panel and bus connections are clean and free of corrosion before installation to maintain optimal interrupting capacity and reliability.
• Keep this breaker in your spare inventory if you regularly service GE panelboards and load centers, so you can respond quickly when a replacement is needed.

Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit for your GE panel or distribution setup.