Siemens | QJ2M100 | Circuit Breaker | 2-Pole | 240V | Bolt-On

Meet the Siemens QJ2M100, a sturdy 2-pole, 240V bolt-on circuit breaker built for reliable protection in electrical panels, retrofit projects, and replacement needs. This unit is purposefully designed for field service where exact compatibility matters, making maintenance and upgrades faster and more predictable.

• 2-Pole, 240V protection handles the two conductors of standard 240V circuits, delivering dependable overload protection for both power feeds and connected equipment.
• Bolt-On mounting provides a secure, straightforward installation method that aligns with compatible Siemens panel and bus configurations, reducing install time and ensuring solid mechanical integrity.
• Direct compatibility reference the part number QJ2M100 as the definitive identifier for fit and ratings, helping you confirm exact match during maintenance, retrofit, or replacement.
• Maintenance-friendly replacement designed for quick swapping, minimizing downtime in service environments and keeping critical systems up and running.
• Durable Siemens design engineered to meet real-world reliability needs in commercial and light industrial settings, where consistent protection matters most.

Who benefits most: electricians performing panel retrofits, service technicians upgrading existing installations, OEM projects integrating Siemens protection, and facilities managers seeking dependable, long-lasting circuit protection for 240V systems.

Important compatibility note: before ordering, verify that your equipment requires a 2-pole, 240V bolt-on breaker and that the QJ2M100 matches the panel’s mounting footprint and ratings. The model name and part number are your best reference to ensure a seamless fit and safe operation.

With the Siemens QJ2M100, you gain a precise, reliable replacement option that prioritizes safety, ease of installation, and downtime reduction—essentials for any mission-critical electrical system.