Siemens | HQJ3B100H01S11 | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

Introducing the Siemens HQJ3B100H01S11 Circuit Breaker—a purpose-built bolt-on solution engineered for reliable overcurrent protection in 3-phase electrical systems. With a 100A rating, 3 poles, and a 240V operating range, this unit is ideally suited for maintenance, retrofit, and replacement projects where precise specifications matter and downtime needs to be minimized.

Key specifications

• Amperage: 100A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part reference: HQJ3B100H01S11

Why this bolt-on breaker stands out

The bolt-on design delivers a secure, field-friendly mounting that stays firmly seated in demanding environments. This makes it especially well-suited for retrofit projects and panel upgrades where a robust physical connection and consistent bus-bar contact are essential. By matching the exact HPJ/HQJ-series specifications, you maintain predictable protective behavior and minimize compatibility surprises during installation.

Ideal use cases

• Maintenance on Siemens-based distribution panels that require 3-pole, 240V protection at 100A
• Retrofit projects where upgrading to a higher-current or more reliable breaker is needed without changing the panel architecture
• Replacement scenarios for failed or degraded breakers in 3-phase electrical systems

How to verify fit and ensure reliable protection

Before ordering, confirm fit and ratings by cross-referencing the part number HQJ3B100H01S11 with your panel label or Siemens catalog. The part number is the most reliable reference for compatibility, ensuring the mounting style, pole count, and voltage align with your existing equipment. If your system uses Siemens HQJ-series components, this bolt-on breaker is designed to integrate smoothly and maintain consistent protection across the distribution network.

Practical installation and care tips

• Power down the equipment and follow lockout/tagout procedures before beginning work
• Inspect the mounting surface and bus-bar contact for clean, undamaged surfaces prior to installation
• Securely fasten all mounting hardware to prevent movement under mechanical or electrical load
• Label and document the update for future maintenance and troubleshooting

Designed for professionals who demand precise specifications and dependable protection in industrial and commercial electrical rooms, the Siemens HQJ3B100H01S11 Circuit Breaker delivers straightforward installation, durable performance, and a clear path to reliable circuit safeguarding.