General Electric | TJK426300LL | Circuit Breaker | 300A | 2-Pole | 600V

Introducing the General Electric TJK426300LL Circuit Breaker—a dependable safety device engineered for demanding electrical environments. With a 300-ampere rating and a 2-pole configuration at 600V, this breaker reliably protects circuits and equipment in maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications at a glance:

• Amperage: 300A
• Poles: 2-Pole
• Voltage rating: 600V
• Part number: TJK426300LL

Why this GE breaker stands out

• Designed for compatibility with GE panels and systems that require a 2-pole, 300A, 600V device. The part number TJK426300LL is the most reliable reference when confirming fit.
• Ideal for maintenance, retrofit, and replacement projects where matching ratings are critical—ensuring minimal downtime and a secure, code-compliant installation.
• Trusted GE engineering means consistent performance, clear trip characteristics, and solid electrical isolation when faults occur, helping protect wiring, devices, and downstream equipment.

Practical guidance for a smooth replacement

• Always verify the breaker’s fit and ratings against your panel labeling and the panel’s documentation before ordering.
• Use the exact part number (TJK426300LL) as the primary compatibility reference to avoid mismatches.
• When installing, ensure the electrical service is de-energized, and follow standard safety procedures for switching to a 2-pole device in a 600V system.

Who should consider this model?

• Facilities managers upgrading older GE panels or replacing failed breakers in commercial or light industrial settings.
• Electrical contractors performing panel retrofits or service panel modernization where a precise 2-pole, 600V, 300A unit is required.