Siemens B225H - 25 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens B225H, a robust 25A, 240V, 2-pole bolt-on molded case circuit breaker built for dependable branch-circuit protection in panelboards and load centers. Designed for residential, commercial, and light industrial use, this unit delivers fast, repeatable response to overcurrent and short circuits, helping prevent damage and downtime.

Why this breaker stands out

• Secure bolt-on mounting: provides a rigid, vibration-resistant bus connection that stays tight even in challenging environments.
• Thermal-magnetic trip unit: delivers stable, repeatable protection by reacting to both overload (thermal) and short-circuit (magnetic) conditions.
• OEM-compatible: designed to pair with matching Siemens OEM load centers and panelboards for seamless integration and reliable performance.
• Versatile application: ideal for residential panels, commercial distribution boards, and light industrial service equipment where space and reliability matter.

Technical snapshot

• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 25A
• Voltage rating: 240V
• Number of poles: 2
• Mounting style: Bolt-on
• Manufacturer: Siemens
• Part number: B225H

Practical guidance and use cases

Upgrade or replace a tired breaker in panelboards or load centers that require a reliable, easy-to-install bolt-on solution. The B225H is well-suited for circuits that demand solid short-circuit protection in spaces where panel alignment and bus stability are critical—think main distribution panels in small offices, apartment buildings, or light manufacturing lines. The bolt-on design simplifies installation in retrofit projects, reducing the risk of loose connections that can lead to nuisance trips or degraded protection.

Installation tips

• Verify that your panelboard accepts bolt-on breakers of this size and type before installation.
• Ensure clean, square mounting with proper torque on the mounting screws to preserve the vibration-resistant connection.
• Keep protection coordinated with other devices in the same circuit and follow local electrical codes for a safe, reliable setup.