General Electric | TB43300 | Circuit Breaker | 300A | 3-Pole | 600V

Meet the General Electric TB43300 Circuit Breaker — a precise, OEM-grade solution engineered for demanding industrial and commercial electrical systems. This 300A, 3-pole device is designed for use in maintenance, retrofit, and replacement projects where exact specifications matter, delivering reliable overcurrent protection when it matters most.

• Amperage: 300A
• Poles: 3-Pole
• Voltage rating: 600V
• Part number: TB43300
• Note: Use the TB43300 part number as the best reference for compatibility; confirm fit and ratings before ordering.

Why this GE TB43300 breaks through the ordinary

• Engineered for steady, dependable protection of high-current three-phase circuits common in commercial and industrial panels.
• Three-pole design ensures balanced protection across all phases, helping prevent uneven loading and equipment stress in three-phase systems.
• 600V rating expands compatibility with industrial power distribution networks and heavy-duty equipment found in facilities and manufacturing environments.
• General Electric’s reliability and consistency mean fewer nuisance trips and predictable performance over the life of the panel.

Ideal use cases

• Retrofits and upgrades of existing panels that require a 300A, 3-pole, 600V protection device.
• Replacement for failed or worn breakers in large commercial load centers, service entrances, or motor control applications.
• Protection for main distribution feeders feeding heavy equipment, conveyors, HVAC systems, and other high-current loads.

Installation and compatibility tips

• Always verify that the panel brand and model specify TB43300 or a matching 300A, 3-pole, 600V breaker reference.
• Check the panel label and documentation to ensure correct fit, rating, and trip characteristics before installation.
• Follow standard safety practices: de-energize the panel, verify zero voltage, and adhere to lockout/tagout procedures during replacement.

Practical guidance for selection and lifecycle

• Choose GE TB43300 when your project requires an OEM-grade, manufacturer-referenced solution that aligns with GE panel designs and documentation.
• Keep a clear maintenance log for replacements and inspections to monitor performance over time and plan future replacements before failure risks arise.