General Electrics THJK436125WL - 125 A, 3-Pole Circuit Breaker | AmpState

Meet the General Electrics THJK436125WL — a 125 A, 3-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built for reliability in demanding environments, it helps keep electrical systems safe and up to code.

Why this unit stands out:

• Compact molded-case design maximizes panel space, allowing you to fit complex distributions without sacrificing protection.
• Thermal-magnetic trip unit provides stable, repeatable protection: the thermal element guards against nuisance overloads while the magnetic element responds swiftly to short circuits, reducing potential damage and downtime.
• OEM-ready compatibility is engineered to pair with matching GE OEM load centers and panelboards, ensuring a precise fit, proper electrical coordination, and straightforward installation.
• Versatile applications ideal for residential, commercial, and light industrial environments where reliable, trip-protected branch circuits are essential.

What it protects and how it helps you plan:

• Amperage rating: 125 A protects circuits with substantial current demands while preventing conductor overheating.
• Poles: 3 accommodates three-phase distribution or multi-pole switching required for modern panel layouts.
• Type: Thermal-magnetic molded case circuit breaker combines time-delayed thermal protection with instantaneous magnetic trip for fast fault interruption.
• Application provides branch circuit overcurrent and short-circuit protection, helping you meet safety standards and maintain system integrity.

Installation and use tips:

• Verify that your panelboard or loadcenter is designed for three-pole molded-case breakers and that THJK436125WL is the correct part for your system.
• Follow the manufacturer’s guidelines for torque, line/load orientation, and seating to ensure reliable tripping performance.
• In retrofit projects, confirm space and bus configuration to avoid fitment issues and ensure proper coordination with existing protection devices.

Technical snapshot:

• Manufacturer: General Electrics
• Part Number: THJK436125WL
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 125 A
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection