Siemens | HQJ23B110H | Circuit Breaker | 110A | 3-Pole | 240V | Bolt-On

Siemens HQJ23B110H is a purpose-built circuit breaker engineered to protect three‑phase, 240‑volt systems with precision. With a 110‑amp rating and a 3‑pole configuration, this bolt‑on unit is designed for straightforward field installation, making it an ideal choice for maintenance, retrofit, or replacement projects where exact specifications matter.

Key specifications

• Amperage: 110 A
• Poles: 3‑Pole
• Voltage: 240 V
• Mounting: Bolt‑On
• Reference: HQJ23B110H

Why this Siemens HQJ23B110H stands out

• Efficient bolt‑on mounting for faster installations and easier field service.
• Exact 110 A protection for balanced, three‑phase circuits commonly found in commercial and light industrial environments.
• 3‑pole design ensures comprehensive protection across all three phases, helping maintain system stability during faults.
• Part-number precision (HQJ23B110H) provides a reliable reference point for compatibility in retrofit or replacement scenarios.

What problems it solves

• Replaces worn or aging breakers in three‑phase 240 V panels without compromising circuit protection.
• Supports retrofits and upgrades by matching a specific amperage and mounting style, reducing configuration guesswork.
• Provides a dependable, drop‑in solution for projects that require exact Siemens compatibility and bolt‑on installation.

Ideal use cases

• Maintenance and replacement of three‑phase, 240 V feeders in commercial or light industrial panels.
• Retrofits that require maintaining consistent 110 A protection across all three phases.
• New installations in panels designed for bolt‑on protection with Siemens HQJ series compatibility.

Installation and care tips

• Confirm fit and ratings against your panel’s specifications before ordering.
• Power down the equipment and follow standard safety procedures during replacement.
• Use the panel manufacturer’s torque and mounting guidelines to ensure secure bolt‑on attachment.
• Keep the HQJ23B110H reference handy as the best compatibility reference when matching breakers.

Durability and reliability

Designed for steady performance in demanding environments, this bolt‑on 3‑pole breaker from Siemens emphasizes dependable overcurrent protection for all three phases. Its robust construction supports repeated switching cycles, helping protect connected motors, HVAC equipment, and other 3‑phase loads from faults and overloads.