Siemens P225 - 25 A, 1-Pole Bolt-On Circuit Breaker | AmpState

The Siemens P225 is a dependable 25-amp, 1-pole bolt-on molded case circuit breaker designed to safeguard individual branch circuits in panelboards and loadcenters. Built for steady, repeatable protection, it combines robust construction with precise trip performance to keep electrical systems running smoothly in demanding environments.

Why the Siemens P225 stands out

• Solid bolt-on mounting delivers a rigid, vibration-resistant connection to the panel bus, reducing the risk of loose contacts in busy commercial spaces or high-traffic installations.
• Thermal-magnetic trip unit provides reliable protection against both overloads (thermal) and short circuits (magnetic), ensuring fast, predictable trips that minimize damage to circuits and equipment.
• 1-pole, 25A design offers targeted protection for individual branch circuits without unnecessarily limiting load capacity.
• OEM-compatible design ensures seamless fit and coordinated protection when paired with matching Siemens loadcenters and panelboards.
• Versatile for multiple settings ideal for residential projects, light commercial applications, and small industrial spaces where compact, dependable protection is essential.

Technical details at a glance

• Manufacturer: Siemens
• Part Number: P225
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 25A
• Number of Poles: 1
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Who should consider the P225

This breaker is a smart choice for electricians and facilities managers upgrading or expanding panelboards in homes, offices, small retail spaces, or light-industrial setups. If you’re building or retrofitting a Siemens panelboard, the P225’s bolt-on design and OEM compatibility help you achieve a clean, dependable protection solution with minimal compatibility risk.

Practical benefits and scenarios

• New installations: Pair the P225 with compatible Siemens panelboards to establish a matched protection system from the start.
• Retrofits and replacements: Replace aging or failed breakers with the same amperage and pole configuration to maintain circuit protection without reconfiguring the panel.
• Emergency or surge-prone environments: Rely on the thermal-magnetic trip to respond appropriately to sustained overloads and sudden faults, helping protect wiring, devices, and downstream equipment.
• Maintenance-friendly design: Bolt-on mounting simplifies servicing in tight enclosures where plug-in breakers are impractical.

In short, the Siemens P225 delivers precise, reliable branch circuit protection with a secure mounting system and OEM-aligned compatibility. When you need a trusted, purpose-built solution for residential, commercial, or light-industrial panel installations, this 25A, 1-pole bolt-on breaker offers clarity of protection and peace of mind for your electrical system.