Siemens | QJH23B110 | Circuit Breaker | 110A | 3-Pole | 240V | 22kA

When your electrical panel needs robust, reliable protection for a 3‑phase 240V system, the Siemens QJH23B110 circuit breaker delivers precise current control with a wide fault-interruption margin. Designed for maintenance, retrofit, and replacement projects, this 110A, 3‑pole unit integrates smoothly into compatible Siemens panels to safeguard equipment and keep downtime to a minimum.

Key specifications

• Amperage: 110 A
• Poles: 3‑Pole
• Voltage: 240 V
• Interrupting rating: 22 kA
• Part number: QJH23B110

Why this Siemens breaker stands out

• The QJH23B110 is a Siemens‑specific model, ensuring a precise fit and reliable electrical protection when upgrading or replacing existing protection in compatible panels.
• Ideal for motors, pumps, conveyors, and other three‑phase loads that require synchronized shutdown across all phases.
• A 22 kA interrupting rating provides a strong margin against short‑circuit energy, helping protect wiring and downstream equipment.
• Built to endure typical industrial duty, supporting longer service intervals and dependable performance in retrofit projects.

Ideal use cases

• Retrofit or replacement in existing Siemens panels where a 110A, 3‑pole, 240V protective device is required.
• Upgrading protection for three‑phase motors, compressors, or HVAC equipment in commercial or light industrial environments.
• New installations that demand a Siemens‑brand circuit breaker with a proven track record and compatible form factor.

Compatibility and ordering tips

• Always confirm fit and ratings before ordering. The part number QJH23B110 is the best reference to ensure compatibility with your panel and wiring configuration.
• Verify that your system is a three‑phase 240V setup and that the requested 110 A protection aligns with the load requirements and feeder sizing.
• Use this unit for maintenance and retrofit projects where a like‑for‑like protection device is needed to preserve protection coordination and shutdown behavior.

Installation and safety considerations

• Power must be isolated before any replacement or installation work. Follow proper lockout/tagout procedures to protect personnel.
• Consult your panel’s documentation and Siemens installation guidelines to confirm mounting, torque, and wiring practices for a safe, compliant installation.
• Keep a record of the exact part number (QJH23B110) for future maintenance or replacement decisions to ensure ongoing compatibility.