Siemens B325 25A 3P 240V Circuit Breaker, Bolt-On | AmpState

Meet the Siemens B325 25A 3P 240V Bolt-On Circuit Breaker—built for reliability in electrical distribution where safety and uptime matter. This 3-pole breaker protects three-phase circuits in panelboards, load centers, and distribution panels, and its bolt-on design streamlines retrofit work and maintenance tasks while preserving a consistent part number across replacements.

Key specs

• Amperage: 25 A
• Poles: 3
• Voltage: 240V
• Mounting: Bolt-On
• Manufacturer: Siemens
• Part Number: B325

Why this bolt-on breaker stands out

• Fast, secure bolt-on mounting minimizes service time during replacements and upgrades
• 3-pole, 240V configuration is ideal for 3-phase electrical distribution and motor circuits
• Compact form factor designed for seamless integration into Siemens panelboards and compatible load centers
• Consistent part-number compatibility helps maintain reliable protection schemes across upgrades

Ideal uses and scenarios

Perfect for retrofit projects where the part number must stay consistent, or during planned maintenance where a like-for-like replacement is needed in existing Siemens systems. Use in commercial or industrial settings that rely on reliable 3-phase protection, including lighting, HVAC drives, and office equipment circuits wired at 240V.

Compatibility and purchase

Part Number: B325. Available from AmpState. Need help matching a part number or confirming compatibility? Message us and we’ll help you confirm fit.

Secure this bolt-on circuit breaker to ensure continued protection of your electrical distribution system with a trusted Siemens solution.