NKL631300 | Circuit Breaker | 300A | 3-Pole | 600V | Bolt-On

NKL631300 Industrial Circuit Breaker — 300A, 3-Pole, 600V, Bolt-On

When maintenance, retrofit, or replacement is on the agenda, this NKL631300 circuit breaker delivers reliable protection for three-phase electrical systems up to 600 volts. With a 300 amp rating and three poles, it guards motor feeders, distribution lines, and other high-current circuits from overloads and fault conditions while keeping service downtime to a minimum thanks to its bolt-on mounting for sturdy, fast field installation.

Key specifications

• Amperage: 300A
• Poles: 3-Pole (three-phase protection)
• Voltage rating: 600V
• Mounting: Bolt-On for secure, vibration-resistant installation

Why this design stands out

Unlike generic replacements, NKL631300 is purpose-built for industrial environments where panel retrofit and standardization matter. The bolt-on construction simplifies field servicing and part swaps, reducing downtime during upgrades. The three-pole configuration ensures coordinated interruption across all three phases, protecting motors, drives, and other three-phase equipment from uneven loading and potential damage.

Ideal use cases

• Retrofitting legacy panels that require a 3-pole, 600V protection device
• Maintenance swaps in manufacturing lines, conveyors, and material handling systems
• Motor control centers and switchgear assemblies where compact, secure bolt-on breakers are preferred
• HVAC and large pump circuits in industrial facilities

Installation and compatibility notes

Before ordering, verify that the NKL631300 matches your equipment’s ratings and mechanical footprint. The part number is the most reliable reference for compatibility, so cross-check it against your panel schedule and manufacturer documentation. For best results, use the NKL631300 in systems designed for bolt-on, three-pole protection with a 600V maximum rating.

Notes: Confirm fit and ratings before ordering. The part number NKL631300 is the best reference for compatibility.