General Electrics TKMA836450 - 450 A, 3-Pole Bolt-On Circuit Breaker | AmpState

The General Electric TKMA836450 — a 450A, 3-pole bolt-on molded case circuit breaker — is designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for steady, long-term performance, this unit helps keep commercial and residential electrical systems safe and reliable.

Why this breaker stands out

• Secure bolt-on mounting: A rigid, vibration‑resistant bus connection minimizes movement and loosening over time, even in energized environments or installations with equipment vibration.
• Thermal-magnetic trip unit: Combines a stable thermal element with a fast magnetic trip to provide repeatable protection for both overloads and rapid short-circuit events, reducing nuisance tripping while maintaining safety margins.
• OEM panel compatibility: Designed to pair with matching GE OEM load centers and panelboards, ensuring coordinated trip characteristics and reliable performance within GE-ecosystem panels.
• Versatile application: Ideal for residential, commercial, and light industrial distribution where a high-current 3‑pole device is needed to protect three-phase circuits and feeders.

Practical use cases

• Main feeder protection in GE panelboards and load centers serving three-phase equipment and large feeders.
• Subfeed or disconnect protection for commercial electrical distribution closets and service rooms.
• Retrofits or upgrades in installations requiring a 450A, 3-pole bolt-on solution with dependable thermal-magnetic protection.

What you get with the TKMA836450

• Manufacturer: General Electric
• Part number: TKMA836450
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 450A
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Whether you’re outfitting a new distribution panel or upgrading an existing GE-backed installation, the TKMA836450 delivers robust 3‑phase protection with the reliability you expect from General Electric. For professionals who demand precise fit, predictable trips, and long‑lasting performance in panelboards and load centers, this 450A bolt-on breaker is a practical, trustworthy choice—available through AmpState.