Siemens | LGB3K110B | Circuit Breaker | 110A | 3-Pole | 600V

The Siemens LGB3K110B is a purpose-built 110-amp circuit breaker designed for 600-volt, three-phase electrical systems. Built for maintenance, retrofit, and replacement projects, this unit delivers dependable protection where exact specifications matter, helping keep your distribution network safe and compliant.

Key specifications at a glance

• Amperage: 110 A
• Poles: 3-Pole
• Voltage rating: 600 V
• Part reference: LGB3K110B
• Ideal use cases: maintenance, retrofit, and replacement where matching specs are required

Why this Siemens breaker stands out

Designed for three-phase distribution, the LGB3K110B provides synchronized protection across all three conductors, helping prevent unbalanced loads and minimizing equipment stress. Its 110 A rating makes it suitable for mid-size industrial or commercial applications where reliable interruption and safe shutdown are essential. The 600 V rating expands its utility to a range of industrial motor drives, power distribution panels, and equipment feeds that operate within 600-volt systems.

Use case scenarios

• Maintenance or service upgrades in existing 600 V, three-phase panels where a precise 110 A, 3-pole device is required.
• Retrofit projects aiming to restore original specifications and protection characteristics without altering downstream circuitry.
• Replacement of aging or failed breakers in equipment racks or power distribution units that rely on strict spec alignment.
• Spare inventory for service fleets to ensure rapid, compatible replacements in the field.

Practical guidance for a perfect fit

Before ordering, verify that the LGB3K110B matches your panel or enclosure requirements. The part number is the most reliable reference for compatibility, so cross-check it against your documentation and labeling. This breaker is intended for environments and loads that align with its 110 A, 3-Pole, 600 V specifications, ensuring safe operation and predictable protection when you need it most.

What you gain with the Siemens LGB3K110B

• Clear, dependable protection for three-phase systems at 600 V.
• Exact spec alignment for maintenance, retrofit, and replacement projects.
• A trusted Siemens component designed to integrate smoothly into compatible panels and distributions.
• Peace of mind from having a part-number-specific solution (LGB3K110B) that supports efficient servicing and future compatibility.