General Electric | THJ4V2603 | Circuit Breaker | 300A | 3-Pole | 600V

The General Electric THJ4V2603 Circuit Breaker delivers dependable overcurrent protection for demanding three‑phase 600V electrical systems. Engineered as an exact-match replacement, this 300A, 3‑pole breaker is ideal for maintenance, retrofit, and replacement projects where precise specs and reliable performance matter.

Key specifications

• Amperage: 300A
• Poles: 3‑Pole
• Voltage rating: 600V
• Part number: THJ4V2603
• Fit confirmation: Confirm fit and ratings before ordering — the part number is the best reference for compatibility.

Ideal use cases

Designed for industrial and commercial environments, this GE circuit breaker excels in:

• Maintenance and replacement of aging 3‑phase 600V panels that specify THJ4V2603
• Retrofits where a precise 300A, 3‑pole device is required to preserve existing electrical protection schemes
• Upgrades in facilities with stringent compatibility needs, ensuring panel, bus, and mounting alignment

What makes this GE breaker stand out

• Authentic GE part: Built to GE’s design standards, offering reliable performance and compatibility with GE panels and accessories.
• Exact specifications for critical systems: 300A current rating, 3 poles, and 600V capability to safeguard three‑phase distribution networks.
• Clear compatibility reference: The THJ4V2603 part number is the definitive reference for matching your equipment, reducing guesswork during replacements.

Practical considerations and tips

To ensure a smooth installation and consistent protection, keep these pointers in mind:

• Always verify the panel’s labeling and documentation to confirm that THJ4V2603 is the correct replacement for your service or distribution panel.
• Have the panel’s service history handy when ordering to ensure the replacement aligns with any pre‑existing trip characteristics and mount footprint.
• Store spare breakers in a clean, dry environment to prevent corrosion and ensure reliable performance when installed.