Siemens | QJ23B100H | Circuit Breaker | 3-Pole | 240V

Siemens QJ23B100H Circuit Breaker — a robust, OEM three-pole solution designed for reliable protection in 240V systems. Built for maintenance, retrofit, and replacement projects, this 3-Pole breaker is engineered to slot into matching Siemens panels with precision and confidence. Key specifications at a glance

• Poles: 3-Pole
• Voltage: 240V
• Part number: QJ23B100H
• Compatibility note: Confirm fit and ratings before ordering — the QJ23B100H part number is the best reference for compatibility.

Why choose the QJ23B100H for your electrical panel?

• OEM reliability: As an authentic Siemens component, it aligns with the panel’s design, terminals, and bus connections, delivering predictable performance and safety.
• Designed for three-phase systems: The 3‑pole configuration is ideal for protecting larger loads and three-phase motors, reducing the risk of uneven phase protection.
• Versatile maintenance and replacement: A precise match to existing specifications minimizes downtime and simplifies stock management for service teams and facilities engineers.

Ideal use cases

• Maintenance: Replace a failed or aging breaker in Siemens panels to restore proper circuit protection without panel modifications.
• Retrofit and upgrades: Upgrade or retrofit to meet evolving load profiles in industrial, commercial, or data-center environments where exact Siemens compatibility is required.
• Replacement in service fleets: Keep spare parts aligned to the exact model for quick, risk-free field swaps.

What this means for you

If you’re managing electrical infrastructure, the QJ23B100H offers a precise, trustworthy option when you need to maintain system integrity, minimize downtime, and ensure continued compliance with Siemens standards. Its 240V rating and 3-pole design make it a straightforward match for appropriate three-phase circuits, delivering dependable protection for critical equipment and motors.

Before you order, verify that this exact part number matches your panel’s requirements. Matching the QJ23B100H specification is the quickest way to ensure seamless compatibility and safe operation in your electrical system.