Siemens QR22B225L 225A 2-Pole 240 V Circuit Breaker Potential Transformer

Siemens QR22B225L is a robust circuit breaker designed for high-demand electrical systems. With a 225 A current rating, a 2-pole design, and a 240 V operating range, this model delivers reliable protection for large feeders in industrial and commercial panels. The device carries the Part Number QR22B225L, ensuring you source exact replacements and compatible accessories.

Why this Siemens breaker stands out

• High-capacity protection for heavy-load circuits: 225 A rating helps prevent nuisance trips and shields valuable equipment.
• Two-pole configuration provides balanced protection on 240 V systems, simplifying wiring and maintenance.
• Designed to integrate with Siemens panel ecosystems, enabling cohesive protection schemes and predictable service life.
• Clear, concrete identification with the QR22B225L part number for quick ordering and inventory management.
• Ideal companion in metering setups where a potential transformer and monitoring equipment are used, while ensuring robust overload/short-circuit protection.

Practical use cases

• Main feeders in 240 V commercial or light industrial panels requiring reliable 225 A protection.
• Replacement for aging or failed breakers within Siemens QR-series installations to minimize downtime.
• Panels serving HVAC, motors, pumps, or processing equipment where consistent protection and rapid tripping are critical.

Tips for installation and compatibility

• Confirm the panel supports the QR22B225L family to ensure safe and compliant operation.
• Keep a spare QR22B225L on hand in environments with high-load, mission-critical equipment to reduce downtime during maintenance.
• Use in conjunction with proper labeling and protective devices to maintain clear safety boundaries and code compliance.