Siemens | HQJ3B175H00S07 | Circuit Breaker | 175A | 3-Pole | 240V | Bolt-On

Meet the Siemens HQJ3B175H00S07 circuit breaker — a robust, purpose-built protection device designed for reliability in demanding electrical systems. With a 175A rating, 3-pole configuration, and 240V operation, this bolt-on breaker is tailored for maintenance, retrofit, and replacement projects where exact specs matter.

Key specifications and features

• Amperage: 175A — suitable for higher-load circuits and demanding equipment protection
• Poles: 3-Pole — ideal for three-phase installations common in commercial and industrial applications
• Voltage rating: 240V — compatible with standard 240V distribution setups
• Mounting: Bolt-On design for secure, durable installation
• Part reference: HQJ3B175H00S07 — precise compatibility reference for Siemens panels and assemblies

Why this breaker stands out

Unlike generic alternatives, the HQJ3B175H00S07 is a precise fit for Siemens panels that require the HQJ3B series, ensuring reliable trip performance and consistent electrical protection across your three-phase system. The bolt-on mounting delivers a solid mechanical connection, reducing looseness over time and helping maintain stable electrical contact in environments with vibration or movement.

Ideal use cases

• Retrofit projects where a high-current, 3-pole 240V solution is needed to upgrade existing Siemens infrastructure
• Maintenance scenarios to replace aging or failed breakers with an exact HQJ3B series match
• Replacement in commercial or industrial panels that require a 175A, three-phase protective device

Compatibility and installation notes

Important: Confirm fit and ratings before ordering. The part number HQJ3B175H00S07 is the best reference for compatibility with your panel. This breaker is intended for installations that specify a 175A, 3-pole, 240V bolt-on Siemens solution, and should be installed by following the panel manufacturer’s guidelines and local electrical codes.

Practical tips for best results

• Cross-check panel documentation to ensure the HQJ3B175H00S07 matches the required breaker type and mounting scheme
• Allocate space and clearance for a three-pole unit during planning to ensure proper bus connection and cooling
• Keep the part number handy as the quickest reference for ordering replacements or additional spares