LB3400K | Circuit Breaker | 400A | 3-Pole | 600V

Introducing the LB3400K Industrial Circuit Breaker—a robust, purpose-built protection device designed for demanding electrical environments. With a 400 A rating, a 3-pole configuration, and a 600 V maximum, this unit is ideal for maintenance, retrofit, and replacement projects where exact specifications are essential.

• Amperage: 400 A
• Poles: 3-pole configuration for three-phase systems
• Voltage rating: 600 V
• Compatibility reference: The LB3400K part number serves as the best guide for fit and electrical ratings

Why this matters in the field: In industrial settings, selecting the right circuit breaker isn’t just about turning power on and off. A correctly matched device protects equipment, supports safe operation, and minimizes downtime by ensuring reliable tripping under overload or short-circuit conditions. The LB3400K is designed to drop into compatible panels and switchboards with minimal fuss, helping you complete maintenance or upgrades faster and with fewer compatibility surprises.

Ideal use cases:

• Maintenance: Replace aging or failed breakers with an exact spec match to restore panel protection quickly.
• Retrofit: Upgrade legacy systems to modern, reliable protection using a 3-pole, 600 V device.
• Replacement: Seek a certified substitute when the original part number aligns with LB3400K specifications.

Practical buyer guidance:

• Before ordering, confirm fit and ratings match your existing equipment. The LB3400K part number is your best reference for compatibility.
• Ensure your system is three-phase and within 600 V service to guarantee proper operation and safety margins.
• Verify panel and mounting compatibility to facilitate a smooth replacement without alterations.

Choosing the LB3400K means opting for a durable, industrial-grade circuit breaker that supports reliable protection, faster maintenance cycles, and better alignment with your current electrical standards. It’s the practical choice for professionals safeguarding critical equipment and keeping your operations running smoothly.