General Electric | THJK436300LL | Circuit Breaker | 300A | 3-Pole | 600V

Meet the General Electric THJK436300LL—an industrial-grade circuit breaker designed for demanding 600V, three-phase systems. With a 300A rating and a 3-pole configuration, this GE breaker provides dependable protection for critical electrical infrastructure, making it a smart choice for maintenance, retrofit, and replacement projects where exact compatibility matters.

Core specifications

• Amperage: 300 A
• Pole configuration: 3-Pole (three-phase protection)
• Voltage rating: 600 V
• Part number: THJK436300LL

Why this GE circuit breaker stands out

The THJK436300LL is built to align precisely with GE panels and switchgear, offering reliable protection across three phases in commercial and industrial environments. The 3-pole design ensures synchronized disconnection across all phases, helping prevent unbalanced loads and maximizing system safety. Its 600V rating makes it suitable for medium-voltage distribution scenarios where robust fault protection is essential.

Who should consider it

• Technicians performing equipment maintenance, retrofits, or replacements in GE-based electrical systems
• Facilities managers overseeing data centers, manufacturing floors, or large commercial buildings with 3-phase power
• Electrical engineers designing or upgrading distribution panels that require a precise 300A, 3-pole, 600V GE solution

Key benefits and practical insights

• Exact compatibility reference: Use the part number THJK436300LL as the primary guide to ensure a correct fit with GE equipment.
• Efficient three-phase protection: The 3-pole configuration provides coordinated interruption across all three phases, reducing the risk of phase-related faults.
• Clear fit-and-rating emphasis: The included specification details—300A, 3-Pole, 600V—help you verify suitability for your application before ordering.
• Maintenance-friendly replacement: Designed to slot into existing GE installations where this exact specification is required, minimizing compatibility issues during upgrades.

Important ordering note

Before purchasing, confirm fit and ratings against your equipment label and system requirements. The THJK436300LL part number is the most reliable reference for compatibility, ensuring you receive a breaker that aligns with your GE panels and switchgear.