JB31500SM | Circuit Breaker | 500A | 3-Pole | 600V

JB31500SM Industrial Circuit Breaker is a robust, high-current protection device engineered for demanding 3-phase power networks. With a 500A rating, a 3-Pole configuration, and a 600V operating envelope, this breaker delivers reliable, coordinated isolation to protect motors, drives, and other heavy equipment in industrial settings.

Designed for real-world maintenance, retrofit, and replacement work where exact specifications matter, the JB31500SM is the trusted choice when you need to match existing panel requirements without compromise. Its three-pole design ensures all three phases disconnect simultaneously, helping reduce the risk of partial faults and undefined fault conditions in three-phase systems.

Key features

• 500A rating for three-phase circuits
• 3-Pole configuration for complete phase isolation
• 600V maximum voltage, suitable for standard industrial distribution
• Industrial-grade design built to stand up to daily panel operations
• Part number JB31500SM serves as the best reference for compatibility

Ideal use cases

• Retrofitting existing electrical panels that require exact spec matching
• Maintenance or replacement in manufacturing lines, processing equipment, and large motor drives
• Upgrading or repairing three-phase protection in facilities with 600V systems

Why this matters

Choosing the exact part number minimizes installation surprises and downtime. The JB31500SM is purpose-built to align with your existing protection scheme, reducing guesswork during critical maintenance windows. By ensuring full three-phase disconnection and a clear 600V operating range, you maintain safe, predictable shutdowns and protect valuable equipment from overcurrent events.

Shopping and compatibility guidance

Before ordering, confirm fit and ratings to avoid mismatches. The part number JB31500SM is the most reliable reference for compatibility with your panel or drive system. If you’re replacing an old unit, cross-check your panel documentation and service manuals to ensure wiring, mounting, and trip characteristics align with this 3-Pole, 600V device.

This product is ideal for electrical technicians, facilities engineers, and panel builders who demand precise specifications and dependable performance in industrial environments. When you need a high-current, three-phase protection solution that aligns with your existing infrastructure, the JB31500SM delivers consistent protection and streamlined installation.