GE TJK436300WL - 300 A, 600 V, 3-Pole Circuit Breaker | AmpState

GE TJK436300WL is a 300A, 600V, 3-pole molded-case circuit breaker engineered to shield your panelboards and load centers from overcurrent and short circuits. Built for durable, long-term service, it delivers dependable protection where it matters most—in residential, commercial, and light industrial electrical systems.

• Compact molded-case design maximizes panel space, allowing you to fit more protective devices without compromising accessibility or serviceability.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding to both overloads and short-circuit events, reducing nuisance trips while maintaining safety margins.
• OEM-compatible performance designed to pair seamlessly with matching GE OEM load centers and panelboards for straightforward installation and reliable operation.
• Three-pole protection suitable for 3-phase circuits, delivering balanced protection across all legs of the system.
• High-capacity ratings supports up to 600V systems and 300A branch circuits, making it suitable for demanding residential, commercial, and light industrial applications.

This breaker is ideal for retrofits, panelboard upgrades, or new installations where robust protection and space-efficient design are essential. Its precise thermal-magnetic trip mechanism ensures predictable response to faults, helping you prevent damage to wiring, devices, and downstream equipment.

• residential panel upgrades that demand strong fault protection, commercial electrical rooms requiring reliable distribution, and light industrial panels with higher current needs.
• protecting feeders, branch circuits, and critical loads in GE-compatible panels, or as a direct replacement within OEM-approved panelboards to maintain code-compliant safety margins.
• —offers integrated thermal-magnetic protection in a compact form factor, reducing panel depth requirements while ensuring consistent trip performance across varying temperatures and electrical loads.

Technical specifications

• Manufacturer: GE
• Part number: TJK436300WL
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 300 A
• Voltage rating: 600 V
• Number of poles: 3
• Application: Branch circuit overcurrent and short-circuit protection