Siemens | HQJ23B110H01S11 | Circuit Breaker | 110A | 3-Pole | 240V | Bolt-On

Meet the Siemens HQJ23B110H01S11 circuit breaker—an industrial-grade, bolt-on solution designed for reliable 3‑pole protection in 240V systems. With a 110A rating, this breaker is purpose-built for heavy-load environments where safety, uptime, and precise overcurrent protection matter most.

Key specifications

• Amperage: 110A
• Poles: 3‑Pole
• Voltage: 240V
• Mounting: Bolt-On
• Reference Part Number: HQJ23B110H01S11

This unit is ideal for maintenance, retrofit, and replacement tasks where exact compatibility is required. The HQJ23B110H01S11 part number serves as the best reference to ensure fit with your Siemens panels and bus configurations.

Why choose this Siemens bolt-on breaker?

• Secure, durable installation: Bolt-On mounting provides a sturdy connection for panels handling substantial electrical loads, reducing movement and wear during operation.
• Reliable protection for 3‑phase systems: Designed to interrupt fault currents efficiently across all three phases, helping to safeguard motors, drives, and other equipment connected to 240V circuits.
• Clear reference for compatibility: The specific HQJ23B110H01S11 part number simplifies cross-referencing with compatible Siemens panels and retrofit kits, minimizing guesswork during sourcing.

Who benefits most? Maintenance teams, facility engineers, and electrical contractors working in industrial or commercial settings where Siemens bolt-on breakers are standard. It’s an excellent choice for upgrading aging protection schemes, replacing damaged units, or stocking a ready-for-service spare for critical equipment like motor drives, HVAC systems, and manufacturing lines.

Use cases and practical scenarios

• Retrofit or replace an aging 3‑pole breaker in a Siemens panel that supports bolt-on accessories, ensuring continuous, compliant protection for a 240V three‑phase load.
• Prepare a spare breaker for on‑site outages in facilities with high uptime requirements, reducing downtime during maintenance windows.
• Install in new or upgraded panels where a robust 110A, 3‑pole, 240V solution is needed to protect higher‑demand equipment such as industrial motors or large compressors.

Important: Always confirm fit and ratings against your specific panel model before ordering. The HQJ23B110H01S11 part number is the most reliable reference for compatibility, and proper installation should be performed or supervised by a qualified electrician.