GE THJK436300WL - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState

GE THJK436300WL delivers robust protection for your electrical panels with a precise 300A, 600V, 3-pole molded case circuit breaker built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed to optimize space without compromising protection, this molded case breaker features a compact footprint that helps you maximize panel efficiency while maintaining easy accessibility for maintenance and testing. The thermal-magnetic trip unit provides stable, repeatable protection performance, automatically responding to both overloads and short circuits to safeguard wiring and connected equipment. Key advantages at a glance

• Space-efficient molded case design: Frees up panel real estate while delivering reliable protection.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection against overloads and short circuits.
• OEM-compatible: Seamless integration with matching GE OEM load centers and panelboards for straightforward replacement and consistent performance.
• Versatile application: Suitable for residential, commercial, and light industrial panel configurations where dependable branch circuit protection is required.

Technical snapshot

• Manufacturer: GE
• Part Number: THJK436300WL
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 300A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Who it’s for and practical use cases - Electrical contractors replacing aging breakers in existing GE panels, or setting up new panel installations that require reliable 3-pole protection at 600V. - Facility managers overseeing commercial spaces or light industrial environments where consistent trip performance reduces downtime and protects equipment. - Home-based electricians working on multi-wire branch circuits in larger residential systems that demand precise coordination between overcurrent protection and panel layout. Why this breaker stands out - It balances a compact form with strong protection performance, making it a preferred choice for installations where panel space is at a premium but safety and reliability can’t be compromised. - The thermal-magnetic mechanism covers both overload protection (thermal) and short-circuit protection (magnetic) in a single, integrated unit, simplifying motor-start scenarios and complex electrical loads. Installation and compatibility tips - Verify you’re using a 3-pole, 300A, 600V GE molded case breaker compatible with your GE OEM load centers or panelboards to ensure proper fit and electrical coordination. - Ensure correct alignment and seating within the panel to maintain reliable trip performance and safe operation. - Follow local electrical codes and panel labeling requirements during replacement or installation. Secure dependable protection with the GE THJK436300WL—a purpose-built solution for protecting people, circuits, and equipment across residential, commercial, and light industrial environments.