LB2400SK | Circuit Breaker | 400A | 2-Pole | 600V

< p >LB2400SK is an industrial circuit breaker designed for reliability in maintenance, retrofit, and replacement projects. This rugged 2‑pole unit delivers solid protection for 600V electrical systems with a robust 400A current rating, helping keep critical equipment and personnel safe in demanding environments.

Key specifications at a glance

• Amperage: 400A
• Poles: 2‑Pole
• Voltage: 600V

Why this model stands out

• The LB2400SK is best referenced by its part number when matching to existing panels, making cross‑checking straightforward and reducing the risk of incorrect replacements.
• Perfect for maintenance, retrofit, and replacement: When upgrading or refreshing an aging electrical installation, this 400A, 2‑pole, 600V breaker provides reliable interruption and protection for main channels and feeders.
• Industrial‑grade protection for demanding applications: Built to handle the rigorous demands of commercial and light industrial environments where consistent performance and safety are essential.

Ideal use scenarios

Use the LB2400SK in service equipment, control panels, or distribution panels where a 600V, 400A, 2‑pole breaker is required. It’s well suited for projects that involve:

• Panel retrofits that need a precise amperage and voltage match
• Maintenance swaps to minimize downtime and maintain system protection
• Repairs after component wear or routine inspections in industrial settings

How it helps your operation

With the LB2400SK, you gain a dependable protection solution that supports safe shutdown during faults, protects wiring and equipment from overcurrent, and simplifies upgrade planning by aligning with a clear compatibility reference. Its 2‑pole design offers balanced interruption for paired conductors, which is essential for preserving system integrity in 600V environments.

Important mounting and purchase notes

Before ordering, confirm fit and ratings to ensure a seamless replacement. The part number LB2400SK serves as the best reference for compatibility with your current panel or enclosure. If you’re upgrading an older installation, verify that your panel’s bus connections and mounting footprint align with this 2‑pole, 600V unit to avoid installation delays.

Practical tips for installation and maintenance

• Cross‑check the panel’s required amperage rating and confirm that 400A aligns with your load profile and fault‑current requirements.
• Inspect mounting hardware and ensure the breaker’s frame and trip mechanism align with your panel family and enclosure type.
• Keep a record of the exact part number (LB2400SK) for future replacements or retrofits to maintain consistent protection across your system.
• Follow all safety procedures during installation, including de‑energizing equipment and verifying absence of voltage before work.