Siemens LGB3B110B - 110 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens LGB3B110B is a 110 A, 600 V, 3-pole bolt-on molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters.

• Secure bolt-on mounting delivers a rigid, vibration-resistant bus connection, maintaining electrical integrity even in demanding installations.
• Thermal-magnetic trip unit provides stable, repeatable protection performance, automatically responding to overcurrent and short-circuit conditions with precise tripping characteristics.
• Three-pole design supports three-phase circuits common in commercial and light industrial environments, while remaining suitable for residential applications that require three-phase protection.
• 600 V / 110 A rating aligns with typical distribution systems and branch circuits, ensuring reliable protection without unnecessary tripping in standard panelboards.
• OEM-compatible specifically engineered to pair with matching Siemens loadcenters and panelboards for a seamless, code-compliant installation.
• Durable bolt-on molded case construction built to withstand ongoing electrical demand, vibration, and installation servicing over time.

This breaker is ideal for protecting branch circuits in residential panelboards, commercial load centers, and light industrial distribution systems. The bolt-on mounting simplifies installation and maintenance by enabling a solid, repeatable bus connection, reducing the risk of loose connections that can lead to nuisance trips or heat buildup.

• upgrading or retrofitting panels, adding protection for three-phase distribution, or replacing aging breakers in Siemens-equipped facilities.
• electricians and facilities managers who prioritize reliable protection, easy serviceability, and OEM compatibility within Siemens ecosystems.
• mitigates overcurrent and short-circuit events, minimizes downtime due to stubborn trips, and ensures a robust electrical distribution path in demanding environments.

Technical snapshot

• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 110 A
• Voltage rating: 600 V
• Number of poles: 3
• Mounting style: Bolt-on
• Part number: LGB3B110B