Siemens QJ22B225H - 225 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens QJ22B225H — a robust 225 A, 240 V, 2-pole bolt-on molded case circuit breaker engineered for reliable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to endure in challenging environments, this breaker is a purpose-built solution for residential, commercial, and light industrial applications.

• Secure bolt-on mounting: Delivers a rigid, vibration-resistant bus connection that maintains optimal electrical contact even in dynamic spaces such as service panels and industrial enclosures.
• Thermal-magnetic trip unit: Provides stable, repeatable protection by responding to both overload (thermal) and short-circuit (magnetic) conditions, helping prevent nuisance trips while safeguarding equipment.
• OEM-ready compatibility: Designed to be compatible with matching Siemens OEM load centers and panelboards, ensuring a consistent fit and predictable performance within existing systems.
• Versatile protection for various environments: Suitable for residential service panels, commercial distribution boards, and light industrial equipment where reliable circuit protection is essential.

Key specifications

• Manufacturer: Siemens
• Part Number: QJ22B225H
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 225 A
• Voltage Rating: 240 V
• Number of Poles: 2
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the QJ22B225H? It combines durable construction with precise protection logic, reducing the risk of circuit faults and downtime. The bolt-on design simplifies installation in panelboards and load centers, while the thermal-magnetic protection provides dependable response across a range of temperatures and fault conditions. This is a strategic choice for installers and facility managers who need a trustworthy, long-life solution that integrates seamlessly with Siemens panels and systems.

Ideal use cases include upgrading aging panels, stocking a reliable spare for critical branches, and equipping commercial or light industrial electrical rooms where space and performance matter. If you’re outfitting a Siemens-compatible panelboard lineup or replacing a failed breaker in a compatible Siemens system, the QJ22B225H delivers consistent performance, predictable trips, and a footprint designed for durable, field-tested operation.

Technical, practical, and purpose-built — the Siemens QJ22B225H is more than a component; it’s a cornerstone of dependable electrical protection that keeps systems running smoothly, safely, and with fewer interruptions.