GE THJK436350WL - 350 A, 600 V, 3-Pole Circuit Breaker | AmpState

GE THJK436350WL is a 350A, 600V, 3-pole molded case circuit breaker designed to deliver reliable branch circuit overcurrent and short-circuit protection for panelboards and load centers. Built for installers who demand space-efficient protection that doesn’t compromise safety, this unit integrates seamlessly with GE OEM panel systems to keep your electrical distribution clean, protected, and easy to service.

Key features that stand out

• Compact molded case design optimizes panel space, reducing enclosure fill while simplifying installation and future wiring changes.
• Thermal-magnetic trip unit provides stable, repeatable protection performance, with swift magnetic tripping to interrupt severe faults and prevent equipment damage.
• 3-pole configuration ideal for 3-phase systems, enabling dependable protection for multi-phase loads in commercial and light industrial settings.
• OEM compatibility designed to be used with matching GE load centers and panelboards, making retrofits and panel expansions straightforward and reliable.
• Versatile application suitable for a wide range of environments—from homes with 3-phase needs to small to mid-size commercial and light-industrial installations.

Technical specifications at a glance

• Manufacturer: GE
• Part Number: THJK436350WL
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 350 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and practical scenarios

Upgrade or expand a GE panelboard with confidence using this 350A, 600V 3-pole breaker when you need robust protection for large feeders or motor loads. It’s well-suited for:

• Replacing a failed or worn-out breaker in GE panel configurations to restore solid protection for heavy-duty circuits.
• Expanding service capacity in commercial spaces where 3-phase equipment (drives, compressors, pumps) requires reliable, fast tripping.
• Designing new installations in light industrial environments that rely on durable, space-efficient protection within GE load centers.

Why this breaker matters for reliability and safety

Rather than a generic protection device, the THJK436350WL is purpose-built to align with GE’s panel ecosystems, ensuring a precise fit and predictable electrical behavior. The combination of a compact form factor and a thermal-magnetic trip mechanism delivers dependable protection that minimizes nuisance trips while offering quick response to short-circuit events—helping protect downstream equipment, wiring, and the overall electrical system.

Installation and compatibility tips

For optimal performance, pair this breaker with matching GE OEM load centers and panelboards. Verify that your panel’s rating and labeling authorize a 350 A, 600 V, 3-pole device, and follow local electrical codes during installation. When retrofitting, ensure the trip characteristics and interrupting capacity are appropriate for the connected load to maintain safety and compliance.