General Electrics THKMA836300 - 300 A, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the General Electrics THKMA836300 — a 300 A, 3-pole bolt-on molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for rigorous environments, this unit combines secure bolt-on mounting with a thermal-magnetic trip system to ensure accurate, repeatable protection performance.

Key features that set this breaker apart:

• Bolt-on mounting: provides a rigid, vibration-resistant bus connection, reducing wear and maintaining solid electrical continuity even in equipment spaces subject to vibration.
• Thermal-magnetic trip unit: combines thermal and magnetic protection for precise response to both slow-heating overloads and instantaneous short circuits, helping prevent nuisance trips while safeguarding circuits.
• Three-pole configuration: ideal for three-phase panelboards and load centers, enabling coordinated protection across all phases.
• 300 Ampere rating: supports high-current branches commonly found in commercial and light industrial installations.
• OEM-compatible design: engineered to pair with matching General Electrics OEM load centers and panelboards for straightforward replacement and reliable performance.
• Versatile application: suitable for residential, commercial, and light industrial settings where robust branch-circuit protection is required.

Practical use scenarios:

• Service feeders and main distribution panels in small to mid-size commercial spaces.
• Three-phase branch circuits in light industrial facilities that demand dependable protection with minimal downtime.
• Upgrades or replacement in GE-based panelboards where a bolt-on molded case breaker is specified.

Technical snapshot:

• Manufacturer: General Electrics
• Part number: THKMA836300
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 300 A
• Number of poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the THKMA836300 from AmpState?

• It’s designed to deliver consistent trip performance in demanding environments, helping you avoid costly outages.
• The bolt-on design reduces bus-bar stress and improves long-term reliability in panel installations.
• Compatibility with GE OEM panel products simplifies installation and maintenance, preserving warranty and performance standards.

Maintenance and care tip: ensure mounting hardware remains tight and inspect connections periodically to maintain optimal conductivity and protection. The thermal-magnetic trip mechanism should be tested according to your panel’s maintenance schedule to confirm proper operation.