Siemens LGB1B060B - 60 A, 347 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens LGB1B060B—a 60 A, 347 V, 1-pole bolt-on molded case circuit breaker built to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Designed for real-world installations, this device combines rugged mounting with precise protection to keep electrical systems safe and productive.

• Secure bolt-on mounting: Provides a rigid, vibration-resistant bus connection that stays reliable even in environments with movement or vibration, reducing connection wear over time.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by automatically coordinating thermal overload protection with instantaneous magnetic short-circuit response, helping prevent nuisance trips and equipment damage.
• 347 V rating: Optimized for commercial and light industrial applications where higher line-to-neutral voltages are common, ensuring compatibility with 347 V distribution setups and matching panel requirements.
• OEM compatibility: Designed to work seamlessly with matching Siemens OEM load centers and panelboards, simplifying replacement, upgrades, and maintenance without compromising performance.
• 1-pole, 60 A design: Ideal for protecting a dedicated branch circuit with straightforward integration into standard residential, commercial, and light industrial electrical layouts.

The LGB1B060B is purpose-built for scenarios where reliable protection and long-term stability matter. Use it to upgrade aging panelboards, retrofit existing installations, or equip new builds that demand consistent protection against overcurrent and short circuits. Its bolt-on construction and thermal-magnetic trip mechanism help maintain electrical safety in environments ranging from small offices to light manufacturing facilities.

Who benefits most

Electricians, facilities managers, and electrical contractors who need a robust, field-proven breaker that aligns with Siemens load centers will appreciate the LGB1B060B. It’s well-suited for projects where panelboard compatibility, secure mounting, and dependable trip performance are priorities.

Why choose this breaker over alternatives

Compared to plug-in or less securely mounted options, the LGB1B060B’s bolt-on design delivers a sturdier connection to the bus, reducing movement-induced wear and improving long-term reliability. The combination of a thermal-magnetic trip unit and Siemens’ engineering ensures predictable protection curves across temperature variations, helping protect connected wiring and equipment without unnecessary interruptions.

Specifications at a glance

• Manufacturer: Siemens
• Part Number: LGB1B060B
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 60 A
• Voltage Rating: 347 V
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

For reliable, field-ready protection in panelboards and load centers, the Siemens LGB1B060B delivers consistent performance, easy retrofit capability, and the robust reliability you expect from Siemens’ molded case breakers.