Siemens | LGB1B015B | Circuit Breaker | 15A | 1-Pole | 277V | Bolt-On

Siemens LGB1B015B is a bolt-on, single-pole circuit breaker engineered for 277V circuits. With a precise 15A rating, this unit delivers reliable overcurrent protection for commercial lighting, power distribution, and other single‑phase applications. Built to stand up to retrofit, maintenance, and replacement projects, it’s a dependable choice when exact compatibility matters.

• Amperage: 15A
• Poles: 1-Pole
• Voltage: 277V
• Mounting: Bolt-On
• Part number: LGB1B015B

Why this Siemens breaker stands out for your project

• Exact-fit replacement—The LGB1B015B is designed for environments and panels that require Siemens’ bolt-on, single-pole 277V protection. The exact spec match minimizes compatibility risk during repairs or upgrades.
• Secure, durable mounting—Bolt-On construction provides a robust connection to the panel’s bus system, helping maintain consistent fault protection even in vibrating or high-traffic electrical rooms.
• Commercial-ready versatility—277V operation is common in lighting and distribution circuits in offices, retail spaces, and warehouses. This breaker is tailored for those applications where single-pole protection at 277V is needed.

Ideal use cases

• Replacing a failed breaker in existing Siemens bolt-on panels that serve 277V lighting circuits.
• Retrofit projects where exact 15A, 1-Pole, 277V, bolt-on protection is required to maintain system integrity.
• Retrofits or upgrades in commercial spaces (offices, retail, hospitality) that rely on stable, precise circuit protection.

Practical guidance for safe, effective installation

• Verify panel compatibility by cross-referencing the part number (LGB1B015B) with your enclosure’s labeling and service requirements before ordering.
• Turn off main power and follow all local electrical codes during installation. If you’re not a licensed electrician, consult one to confirm proper fit and safety.
• Ensure your panel is rated for 277V operation and supports bolt-on breakers of this type to avoid performance issues.

Beyond the basics, this Siemens breaker helps you maintain clear, reliable protection for critical 277V circuits, reducing downtime and simplifying future maintenance with a known, trusted component from a leading electrical manufacturer.