Siemens QR22B225L 225 A Circuit Breaker 240 V

Introducing the Siemens QR22B225L — a 225 A, 240 V, 2-pole bolt-on molded case circuit breaker engineered for durable branch-circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built to integrate with matching OEM Siemens panels, this breaker delivers reliable protection across residential, commercial, and light industrial environments.

• Secure bolt-on mounting provides a rigid, vibration-resistant connection to the bus bar, helping maintain consistent electrical contact in demanding installations.
• Thermal-magnetic protection delivers stable, repeatable trip performance, combining instantaneous short-circuit response with long-term overcurrent control to minimize nuisance trips.
• OEM-compatible design ensures straightforward replacement in compatible Siemens panelboards and loadcenters, reducing installation risk and downtime.
• Versatile, large-capacity protection with a 225 A rating makes it suited for feeder protection and high-load circuits in both new builds and upgrades.

Technical snapshot

• Manufacturer: Siemens
• Part Number: QR22B225L
• 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

This QR22B225L is an ideal choice for electricians and facility managers seeking a dependable, easy-to-install protection solution that aligns with Siemens panelboard ecosystems. Use cases include upgrading subpanels, refreshing aging installations, or provisioning new 240 V circuits where high-capacity, reliable protection is essential. By choosing this bolt-on breaker, you gain:

• Reduced downtime thanks to quick, secure mounting that maintains solid bus connections.
• Consistent safety margins through thermal-magnetic trip behavior tuned for real-world load profiles.
• Streamlined maintenance with a part-numbered, OEM-compatible solution that minimizes compatibility concerns.