Industrial LBB3400NW 400A 3-Pole 600 V Circuit Breaker

Meet the Industrial LBB3400NW 400A 3-Pole 600 V Circuit Breaker — a purpose-built overcurrent protector designed for rigorous industrial power systems. With a robust 400 A rating across a 3-pole configuration and a 600 V operating limit, this breaker safeguards wiring, panels, and connected equipment from faults, helping minimize downtime and damage in demanding environments. Its part number clarity (LBB3400NW) also simplifies maintenance, replacements, and inventory management in busy electrical rooms.

Key specifications

• Part Number: LBB3400NW
• Current rating: 400 A
• Poles: 3
• Voltage rating: 600 V

Ideal applications

• Three-phase power distribution panels in manufacturing facilities and industrial plants
• Motor control centers (MCCs) and feeders feeding heavy equipment
• Main distribution and service panels in environments where reliable three-phase protection is essential

Why this model stands out

The LBB3400NW is purpose-built for three-phase systems up to 600 V, delivering coordinated protection across all phases. Its 400 A capacity makes it well-suited for mid- to high-load feeders and motors, helping prevent cascading faults and reducing the risk of equipment damage. The exact part number, LBB3400NW, ensures compatibility with existing spares and upgrade paths, making maintenance planning straightforward and efficient.

Key benefits and actionable insights

• Provides reliable overcurrent protection for three-phase circuits up to 600 V, helping to safeguard motors, pumps, conveyors, and other industrial machinery.
• The 3-pole design ensures simultaneous interruption of all phases, promoting balanced fault isolation and reducing live-side risks.
• Part number specificity (LBB3400NW) simplifies ordering, replacements, and documentation in regulated industrial environments.

Practical usage notes

Install and commission this breaker under the guidance of a licensed electrician, following local electrical codes and the manufacturer’s installation instructions. Verify that your panel, bus configuration, and three-phase distribution align with a 3-pole, 600 V device. Maintain a small inventory of spare LBB3400NW units to minimize downtime during maintenance or replacements.