Siemens QJ23B100 100A 3P Circuit Breaker, Bolt-On | AmpState

The Siemens QJ23B100 100A 3P Bolt-On Circuit Breaker is your reliable safeguard for panelboards, load centers, and electrical distribution systems. Built for retrofit projects and maintenance planning, this unit keeps your existing part numbers intact while delivering solid protection against overloads and short circuits.

Designed for three-phase applications, the 100-amp, 3-pole configuration provides balanced protection across all conductors. The bolt-on mounting offers a secure, vibration-resistant installation that can simplify service upgrades and reduce downtime in busy electrical rooms. With standard Siemens mounting footprints, this breaker integrates smoothly into compatible panel assemblies without modifying the enclosure.

Why choose the QJ23B100?

• 100 A, 3-pole protection for reliable safeguarding of three-phase circuits.
• Bolt-On mounting enables quick, secure installation and easier retrofits.
• Maintains consistent part numbers for streamlined maintenance planning and stocking.
• Siemens quality and compatibility designed to fit standard QJ-series panel configurations and distribution setups.
• AmpState availability and support to help confirm fit and compatibility with your specific panel or load center.

Ideal use cases

• Retrofit projects where panels require the QJ23B100 without altering existing documentation or inventory.
• New installations in commercial or light industrial settings that demand dependable 3-phase protection at 100A.
• Maintenance planning and stock management, helping you keep compatible Siemens parts on hand.

Practical guidance

• Verify your panel’s bus configuration and mounting footprint to ensure a seamless bolt-on installation.
• Consult the installation instructions for wiring and torque recommendations to ensure secure connections and proper trip integrity.
• If you’re unsure about compatibility, reach out to AmpState for expert confirmation of fit and suggested alternatives within the Siemens QJ family.

Backed by AmpState, the Siemens QJ23B100 100A 3P Bolt-On Circuit Breaker is a thoughtful choice for professionals who value precise compatibility, straightforward retrofits, and durable protection in their electrical distribution networks. If you need help matching a part number or confirming compatibility, message us and we’ll help you confirm fit.