Siemens LGB3B015B 15A 3P 480V Circuit Breaker | AmpState

Siemens LGB3B015B is a 15 A, 3-pole, 480 V circuit breaker engineered for reliable protection in panelboards, load centers, and electrical distribution systems. This OEM-grade device is the right choice when you need a precise, original-part replacement that keeps your electrical architecture aligned with the manufacturer’s BOM.

Why choose the LGB3B015B for your project?

• Direct OEM replacement: Matches the original Siemens part number to preserve compatibility with your panelboard or load center, ensuring a seamless fit and wiring scheme.
• Three-pole design for 3‑phase systems: Ideal for distributing and protecting three-phase circuits commonly found in commercial and industrial environments.
• 480 V electrical rating: Suitable for higher voltage distribution in modern facilities, helping maintain safe, reliable operation across your electrical distribution network.
• 15 A protection: Provides targeted overcurrent protection for circuits requiring moderate current capability, helping to prevent damage from overloads and faults.
• Stocked by AmpState: Ready to ship when you need a dependable spare or a quick replacement to minimize downtime, with support to verify fit and compatibility.

Who should consider this part?

• Maintenance teams performing panelboard or load center upgrades where a precise, original-part replacement is required.
• Facilities managers maintaining electrical distribution in/offices, manufacturing floors, or data center environments that rely on stable 480 V 3‑phase protection.
• Purchasing teams stocking spares to keep BOMs consistent with the original equipment configuration.

How to verify compatibility

• Confirm the original part number on your equipment matches LGB3B015B.
• Ensure the application is a 3-pole, 480 V circuit and that the replacement will fit the panelboard or load center design.
• If you’re unsure about fit, you can reach out for guidance—we can help confirm compatibility with your specific Siemens panel or distribution setup. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Practical tips for installation and maintenance

• Always follow lockout/tagout procedures and disconnect power before servicing any circuit protection device.
• Inspect associated conductors and terminal torque specs to ensure a secure, code-compliant connection.
• Use this part as part of a planned maintenance program to reduce unexpected downtime and align with original equipment specifications.

Choose the Siemens LGB3B015B for a precise, BOM-aligned circuit protection solution that supports reliable, three-phase distribution at 480 V. Available through AmpState, with expert support to verify fit and ensure you’re selecting the right replacement for your system.