General Electrics THKMA30800 - 800 A, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the General Electrics THKMA30800, a rugged 800 A, 3-pole bolt-on molded case circuit breaker designed to safeguard your panelboards and load centers with steadfast overcurrent and short-circuit protection. From AmpState, this device blends heavy-duty performance with precise protection for demanding electrical environments.

• Bolt-on mounting for a secure, vibration-resistant bus connection—engineered to stay put in installations where equipment and conditions can introduce movement or vibration.
• Thermal-magnetic trip unit provides stable, repeatable protection against both overloads and instantaneous faults across varying loads and duties.
• 3-pole configuration delivers reliable three-phase protection, making it ideal for commercial distribution and light industrial applications.
• OEM-ready compatibility designed to pairing with matching GE load centers and panelboards, ensuring correct fit, alignment, and trip characteristics.
• 800 A amperage rating supports main feeder or branch-circuit protection for larger panels and higher-current installations.

What problems does it solve?

In complex electrical systems, high-current equipment, motors, and three-phase loads demand robust protection that won’t trip unnecessarily and will respond quickly to faults. The THKMA30800 delivers that balance: a precise thermal-magnetic trip keeps circuits safe, while the bolt-on design reduces the risk of loose connections and arc faults in harsh or dynamic environments.

Ideal use cases

• Commercial panelboards and light industrial distribution where three-phase feeders require durable, high-current protection.
• HVAC and motor control centers that demand reliable protection for large motors and startup surges.
• Renovations or upgrades of existing GE-based electrical rooms where OEM compatibility and consistent trip behavior are essential.

Installation and compatibility recommendations

• Verify panelboard compatibility with bolt-on molded case breakers and confirm mounting space for a three-pole device.
• Follow standard safety practices: power down, verify absence of voltage, and torque connections according to the manufacturer’s specifications.
• Pair with the appropriate GE load centers or panelboards to ensure seamless fit, correct bus alignment, and predictable protection performance.
• Consider the 800 A rating in relation to your feeder sizes and downstream protection requirements to optimize coordination and minimize nuisance trips.

Whether you’re assembling a new, three-phase distribution setup or upgrading an aging panel, the General Electrics THKMA30800 offers dependable, high-current protection with a bolt-on interface that stands up to vibration and real-world use. Trust AmpState to deliver authentic GE parts that align with your system’s needs and keep your electrical distribution running smoothly.