Siemens | QJ23B175L | Circuit Breaker | 175A | 3-Pole | 240V | 10kA | Bolt-On

Siemens QJ23B175L Circuit Breaker stands ready to safeguard your 3-phase electrical distribution with precision and reliability. This bolt-on, 3-pole unit delivers 175A at 240V and a 10kA interrupting capacity, making it well-suited for commercial and light-industrial environments where dependable protection is non-negotiable. Notes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility. Key specifications - Amperage: 175 A - Poles: 3-Pole - Voltage: 240V - Interrupting capacity: 10kA - Mounting style: Bolt-On - Part number: QJ23B175L What sets the QJ23B175L apart - Bolt-On stability: A rigid mounting method minimizes vibration-induced loosening in busy electrical rooms and motor-rich settings, helping maintain consistent protection over time. - Direct compatibility with Siemens QJ-series panels: Designed to slot into existing QJ infrastructure, reducing retrofit complexity when you’re upgrading or replacing protection devices. - Clear, reliable protection for demanding loads: The 175A rating paired with 10kA interrupting capacity provides solid fault protection for medium-to-large distribution circuits and motor feeders. - Precision fit, fewer surprises: The exact part number is your best reference to ensure seamless replacement without panel rework or mismatched trip characteristics. Ideal use cases - Maintenance and retrofit projects in commercial facilities where Siemens QJ-style breakers are specified. - Replacement of aging protection devices in 3-phase 240V distribution networks that require a bolted connection for maximum reliability. - Upgrades in motor control centers or service panels in manufacturing environments that demand robust interrupting performance and low-profile mounting. Installation and compatibility considerations - Requires a compatible Siemens panel with bolt-on mounting rails; verify that your enclosure is designed for QJ-series bolt-on breakers. - Follow manufacturer torque and wiring guidelines to ensure a secure connection and accurate trip performance. - Use the QJ23B175L specifically when your panel label or documentation confirms compatibility with the QJ family and a 175A, 3-pole, 240V, 10kA profile. Why choose this for your electrical protection needs - Precision engineering from Siemens translates into dependable protection for critical circuits, helping minimize downtime and maximize safety in busy facilities. - The combination of 175A capacity, 3-pole configuration, 240V operation, and 10kA interrupting capacity provides a balanced solution for medium-duty industrial applications without over-specifying equipment. - By sticking with the exact part number (QJ23B175L), you reduce the risk of compatibility issues and ensure that the protective characteristics align with your existing protection scheme. Technical context and practical tips - If you’re replacing an older device, double-check the panel’s labeling to confirm QJ-series compatibility and that the bolt-on mounting method is supported. - For new installations, plan conductor sizing and protective devices upstream to match the 175A rating, ensuring coordinated protection across the feeder. - Keep spare QJ-series bolt-on breakers on hand for future maintenance cycles to minimize panel downtime during replacements. This Siemens QJ23B175L circuit breaker is a purpose-built solution for professionals who demand reliable protection, precise fit, and straightforward retrofits in 3-pole, 240V distribution systems.