Siemens | HQJ3B100H | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

Meet the Siemens HQJ3B100H circuit breaker—a dependable 100A, 3-pole, 240V bolt-on solution designed to protect three-phase electrical systems with precision. Engineered for maintenance, retrofit, and replacement projects, this breaker ensures your panel continues to operate within its intended ratings while delivering robust protection across all phases.

Key Specifications

• Amperage: 100A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part Number: HQJ3B100H

Who Should Use This Breaker

Ideal for electricians, facilities maintenance teams, and panel builders who work with Siemens-compatible enclosures. If you’re upgrading or replacing a worn or outdated breaker in a three-phase, 240V system, the HQJ3B100H provides a precise spec match that preserves panel integrity and electrical safety.

Why This Breaker Stands Out

• Exact spec alignment: 100A, 3-pole, 240V configuration ensures seamless replacement without modifying panel hardware or wiring.
• Bolt-On mounting: Facilitates quicker installation and serviceability, reducing downtime during maintenance or retrofits.
• Compatibility clarity: The part number HQJ3B100H is the best reference for ensuring you’re getting the correct breaker for your Siemens bolt-on, 3-pole, 240V application.

Practical Use Cases

• Maintenance: Swap in a like-for-like 100A 3-pole 240V breaker in existing Siemens panels during routine service.
• Retrofit: Increase protection on a growing load by replacing aging components with a 100A, three-phase breaker that fits your current panel design.
• New installations (within compatible enclosures): Deploy in compatible Siemens bolt-on panels to ensure reliable, trip-rated protection across all three phases.

Installation Tips

• Always confirm fit and ratings before ordering—verify that your panel accepts a bolt-on HQJ3B100H and supports 240V three-phase service.
• Before replacement, de-energize the system and follow lockout/tagout procedures to protect personnel and equipment.

Note: For compatibility checks, reference the exact part number HQJ3B100H to ensure a correct match with your Siemens bolt-on, 3-pole 240V configuration.