Siemens | HQJ23B100HA01 | Circuit Breaker | 100A | 3-Pole | 240V | Bolt-On

Engineered by Siemens for reliable protection in demanding electrical environments, the HQJ23B100HA01 3-Pole Circuit Breaker delivers precise current interruption in a compact, bolt-on form factor. With 100 A handling and 240 V operation, it's built for performance in commercial and light-industrial panels where quick replacement and dependable fault isolation matter most.

Core specifications

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

Why this Siemens breaker stands out

• Reliable 3-phase protection: The three-pole design is ideal for 240V three-phase systems, ensuring balanced protection across all phases.
• Bolt-On convenience: Secure mounting in compatible panels facilitates faster service and minimizes retrofit downtime.
• Part-number driven compatibility: When replacing an existing unit, the HQJ23B100HA01 is the definitive reference—verify fit and ratings against the part number before ordering.

Who should consider it

This breaker is well-suited for facilities engineers, electricians, and maintenance technicians performing panel upgrades, retrofits, or routine replacements in commercial or light-industrial environments where Siemens components are specified.

Practical use cases

• Replacing a failed 100A, 3-pole 240V circuit breaker in an industrial control panel.
• Upgrading a service panel to accommodate higher current demands on a 3-phase system.
• Retrofit projects where existing bolt-on breakers in compatible panels require a reliable 100A, 3P 240V solution.

Installation and safety notes

Ensure the unit is compatible with your panel and that ratings match the circuit requirements before installation. Installation and servicing should be performed by qualified personnel in accordance with local electrical codes and manufacturer instructions. Keep the original part number HQJ23B100HA01 as the primary reference to confirm compatibility.