GE TJK436350WL - 350 A, 600 V, 3-Pole Circuit Breaker | AmpState

The GE TJK436350WL is a purpose-built 350A, 600V, 3-pole molded case circuit breaker designed to protect large branch circuits with precision and reliability. Engineered for panelboards and load centers, this breaker delivers dependable overcurrent and short-circuit protection where it matters most—from commercial spaces to light industrial setups.

Key advantages

• Compact molded case design maximizes panel space without sacrificing protection, making it easier to fit into dense electrical layouts and simplify future upgrades.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining thermal and magnetic sensing to respond accurately to both gradual overloads and instantaneous faults.
• Three-pole configuration ideal for three-phase systems, ensuring coordinated protection across all phases in commercial and light industrial installations.
• 600V rating supports higher voltage distribution networks, enhancing safety and expanding wiring compatibility for mid‑sized electrical rooms.
• 350A ampacity suitable for main feeders or heavy branch circuits, enabling robust protection for demanding equipment and loads.
• OEM panel compatibility designed to work with matching GE OEM load centers and panelboards, simplifying replacement and maintaining electrical coordination.

Technical snapshot

• Manufacturer: GE
• Part Number: TJK436350WL
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 350A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal applications and use cases

Specifically suited for environments where reliability and space efficiency matter, the GE TJK436350WL excels in:

• Commercial electrical rooms protecting large branch circuits feeding lighting, HVAC, and office equipment
• Light industrial facilities requiring robust three-phase protection for motor loads and processing equipment
• Residential-to-commercial transitions where panel upgrades demand compatible, high-capacity protection
• Retrofits or panelboard modernization projects that need a dependable GE replacement with OEM compatibility

Why this breaker matters

Beyond its stainless performance, the TJK436350WL delivers practical value: it minimizes panel crowding, reduces nuisance trips through its precise trip mechanism, and ensures coordinated protection across all three phases. This means fewer unexpected outages, easier maintenance, and a safer, more predictable electrical system across a range of applications.

Installation and compatibility notes

For best results, pair the GE TJK436350WL with matching GE OEM load centers and panelboards to preserve protection coordination and warranty coverage. Before installation, verify panel specifications support a 350A, 3-pole, 600V molded case breaker, and follow standard electrical practices for torque, termination, and labeling. This breaker is designed to integrate seamlessly into professional panel builds, minimizing downtime and simplifying future service work.

What you gain with GE TJK436350WL

• Reliable protection for high-demand circuits in commercial and light industrial settings
• Efficient use of panel space without compromising safety or performance
• Clear compatibility with GE OEM panels for straightforward replacements
• Long-term durability backed by GE engineering and field-proven performance