Siemens | LGB2B100B | Circuit Breaker | 100A | 2-Pole | Bolt-On

Introducing the Siemens LGB2B100B 100A 2-Pole Bolt-On Circuit Breaker — a purpose-built solution designed for maintenance, retrofit, and replacement projects where exact compatibility matters. This OEM-grade breaker delivers reliable overcurrent protection with a secure, field-ready bolt-on mounting for streamlined service work.

Key benefits

• OEM-grade reliability from Siemens, ensuring consistent trip characteristics and protection aligned with your existing electrical protection strategy.
• Bolt-On mounting provides a solid, vibration-resistant connection and simplifies on-site installation or replacement.
• 2-Pole design protects both conductors in typical 240V circuits, delivering synchronized protection across both legs.
• 100A rating is ideal for feeders and higher-current branch protections where robust performance is required.
• Clear compatibility reference using the part number LGB2B100B as the best guide for matching panels and accessories.

Key specifications

• Amperage: 100A
• Poles: 2-Pole
• Mounting: Bolt-On

Ideal use cases

• Maintenance or replacement of failed or worn 2-pole breakers in Siemens-compatible panels.
• Retrofit projects where an exact 100A, two-pole bolt-on solution is required to maintain system protection and retrofitting timelines.
• Equipment upgrades or service upgrades that call for reliable Siemens protection with straightforward field installation.

Compatibility and installation notes

Before ordering, confirm fit and ratings for your panel. The part number LGB2B100B is the best reference for compatibility. When installing, power must be off, remove the existing breaker, and mount the new unit using the bolt-on method per your panel’s manual. If in doubt, consult the panel documentation to ensure the breaker’s characteristics match your system requirements.

Why choose Siemens LGB2B100B

Designed for consistency and long-term performance, the Siemens LGB2B100B delivers dependable overcurrent protection in a job-critical format. It’s a practical, industry-standard choice for professionals who value precise compatibility, straightforward installation, and durable protection for residential, commercial, or light industrial applications.