Siemens B225 - 25 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens B225 — a reliable 25A, 240V, 2-pole bolt-on molded case circuit breaker built to guard your panelboards and loadcenters against overcurrent and short-circuit events. This is the hard-working protection device you install once and trust for the long haul.

Engineered for durability in real-world electrical environments, it features a secure bolt-on mounting that delivers a rigid, vibration-resistant bus connection. The thermal-magnetic trip unit provides stable, repeatable protection performance: the thermal element handles overloads with precision, while the magnetic element delivers rapid response during short circuits. Together, they minimize nuisance trips and protect sensitive equipment.

• Secure bolt-on mounting for a solid, vibration-resistant connection to the bus
• Thermal-magnetic trip offers reliable overload and short-circuit protection
• 2-pole, 25A, 240V design tailored for typical branch circuits in diverse settings
• OEM-compatible works with matching Siemens load centers and panelboards for a proper fit and consistent trip characteristics
• Ideal for residential, commercial, and light industrial applications needing dependable, code-compliant protection

Why choose the Siemens B225?

This breaker is purpose-built to integrate seamlessly with Siemens’ own lineup of load centers and panelboards, ensuring predictable performance and easier maintenance. Its bolt-on format simplifies installation in retrofit projects or new builds where a secure, fixed connection is critical. If you’re upgrading panels or configuring a protection scheme for feeders and branch circuits, the B225 provides a straightforward, reliable solution with a proven track record.

Ideal use cases

• Residential panels where compact, dependable 25A protection is required for lighting and receptacle circuits
• Small commercial panels handling office lighting, outlets, and HVAC controls
• Light industrial panels needing robust protection for critical circuits in environments with some vibration
• Panelboard retrofits where matching OEM components ensure compatibility and consistent performance

Technical snapshot

• Manufacturer: Siemens
• Part Number: B225
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 25A
• Voltage Rating: 240V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

When you choose Siemens B225, you’re selecting a trusted, purpose-built solution that aligns with Siemens OEM panels and delivers precise protection where it matters most. Available from AmpState, it’s the practical, code-compliant choice for electricians and facility managers who demand consistency, reliability, and straightforward installation.