NJJ232300 | Circuit Breaker | 300A | 3-Pole | 240V | Bolt-On

The NJJ232300 is a rugged industrial circuit breaker engineered for demanding electrical installations. With a 300A rating, 3-pole configuration, and 240V operation, this bolt-on unit delivers reliable overcurrent protection in maintenance, retrofit, and replacement scenarios. Built to integrate seamlessly where specs match, it’s a dependable choice for isolating circuits and safeguarding equipment.

Key specifications

• Amperage: 300A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part number: NJJ232300

What makes this breaker stand out

• Secure bolt-on mounting: Provides a solid, vibration-resistant connection ideal for panel boards and enclosures in industrial settings.
• Clear compatibility reference: The part number itself is your best guide when matching to existing equipment and control panels.
• Dedicated for heavy-duty use: The 300A capacity supports high-load circuits, making it suitable for demanding motor and power distribution applications.

Ideal use cases

• Maintenance and service: replace worn or obsolete breakers to restore reliable protection quickly.
• Retrofits and panel upgrades: upgrade circuits to align with updated equipment or expanded power demands.
• Replacement in legacy systems: swap like-for-like to maintain original coordination and protection strategy.

Installation and compatibility guidance

Before ordering, confirm fit and ratings to ensure a seamless replacement. Since the best reference for compatibility is the part number, use NJJ232300 to verify alignment with your panel or enclosure’s specifications. If you’re upgrading from a different amperage or configuration, plan for proper coordination with upstream protective devices and system wiring to maintain overall protection and safety.

Practical considerations

• Document the exact panel model and any preceding breakers to ensure matching trip characteristics and physical dimensions.
• Carefully follow manufacturer instructions for bolt-on installation to ensure proper torque and secure mounting.
• Store and handle breakers in a clean, dry environment to preserve contact surfaces and performance over time.