Siemens | HQJ23B110HA02 | Circuit Breaker | 110A | 3-Pole | 240V

Siemens HQJ23B110HA02 is a robust circuit breaker designed for reliable overcurrent protection in 3‑phase 240V systems. With a 110A rating and a 3‑pole configuration, this unit is an ideal choice for maintenance, retrofit, and replacement projects where exact specifications matter. Before you order, confirm fit and ratings—the HQJ23B110HA02 part number is the most dependable reference for compatibility.

Key specifications

• Amperage: 110 A
• Poles: 3‑Pole
• Voltage: 240 V
• Part number: HQJ23B110HA02
• Application: Suitable for 3‑phase distribution in compatible Siemens panels

What makes it unique

Designed for retrofit and replacement workflows, the HQJ23B110HA02 streamlines panel maintenance by matching Siemens’ exact HQJ specifications. Its 3‑pole construction interrupts all three hot legs simultaneously, which is crucial for protecting motors, compressors, and other high‑demand equipment in balanced 3‑phase systems.

Ideal use cases

• Retrofit projects where existing equipment requires the same 110A, 3‑pole, 240V characteristics
• Maintenance of commercial or industrial panels that power heavy loads such as motors, HVAC, or processing equipment
• Replacement of a failed breaker with a unit that precisely matches factory ratings and mounting configuration

Installation and compatibility tips

Always verify the breaker fits your specific panel model. Use the part number HQJ23B110HA02 as the primary compatibility reference, and ensure your panel supports 3‑pole, 240V operation. Check panel labeling and Siemens documentation to confirm busbar type, mounting arrangement, and trip characteristics align with this unit.

Why choose Siemens for high‑stakes electrical protection

Siemens’ HQJ family is built for dependable performance in demanding environments. The HQJ23B110HA02 delivers reliable protection for high‑current circuits while offering a straightforward, drop‑in replacement path for panels that require exact 110A, 3‑pole, 240V specifications. In practical terms, this means quicker replacements, reduced downtime, and confident protection for critical equipment.