General Electrics THKMA836350 - 350 A, 3-Pole Bolt-On Circuit Breaker | AmpState

The General Electric THKMA836350 is a high-capacity 350A, 3-pole bolt-on molded case circuit breaker built for reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. With a rugged bolt-on mounting and a thermal-magnetic trip unit, this device delivers dependable protection in demanding electrical environments.

Designed for performance you can count on, the secure bolt-on mounting creates a rigid, vibration-resistant bus connection that stays aligned through equipment movement and vibrations. The thermal-magnetic trip unit provides stable, repeatable protection—responsiveness to overloads while rapidly interrupting short-circuit events—helping to minimize damage to conductors and connected equipment.

Key compatibility and versatility:

• Part number THKMA836350 ensures a precise fit within GE-style OEM loadcenters and panelboards.
• 3-pole configuration supports three-phase circuits, ideal for larger feeders, motors, and balanced loads.
• Bolt-on mounting facilitates a solid, low-torque connection to the bus, reducing loosening risks and improving long-term reliability.
• Molded case construction delivers compact form factor with robust insulation and physical protection for the CT/coil assembly.
• Applications suited for residential, commercial, and light industrial installations that require dependable protection for branch circuits.

What problems does this solve?

• Prevents overheating and fire risk on high-current branches by accurately interrupting excessive current before damage occurs.
• Protects three-phase equipment and motors from short circuits, reducing downtime and maintenance costs.
• Delivers consistent protection performance in environments with vibration or equipment movement, thanks to its rigid bolt-on bus connection.
• Ensures plug-and-play compatibility with GE OEM panelboards and loadcenters, streamlining upgrades and replacements.

Ideal use cases

• Commercial electrical rooms distributing three-phase power to lighting, HVAC, and motor loads.
• Light industrial panels where reliable motor protection and branch circuit safety are critical.
• Upgrades or replacements in GE-compatible panelboards requiring a 350A, 3-pole bolt-on MCCB.
• Panelboard main feeders and distribution circuits in mixed-use facilities needing robust protection with minimal maintenance.

Practical guidance for installation and operation: verify that your panelboard accepts GE-style bolt-on MCCBs and that the bus bars and mounting hardware are rated for the same amperage. Use the THKMA836350 as a precise match for tasks demanding strong, repeatable protection and a durable, vibration-resistant connection in residential, commercial, and light industrial settings.