Siemens | QJH22B175 | Circuit Breaker | 175A | 2-Pole | 240V | Bolt-On

Meet the Siemens QJH22B175—a rugged, high-current circuit breaker crafted for demanding 240V distribution in commercial and industrial panels. With a 175A rating and 2-pole design, this bolt-on breaker delivers dependable overcurrent protection where it matters most, helping you maintain safe, continuous power for essential equipment and processes.

• Amperage: 175A
• Poles: 2-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Application: Suitable for maintenance, retrofit, and replacement in compatible Siemens panels
• Compatibility note: Confirm fit and ratings before ordering. The part number QJH22B175 is the best reference for compatibility.

The QJH22B175 is designed for professionals who manage electrical distributions in facilities where downtime is costly. Its bolt-on mounting provides a secure, vibration-resistant connection that stands up to busy, high-usage environments, while the 175A rating covers demanding feeder circuits without oversizing protection.

Key use cases

• Upgrading or retrofitting Siemens-based panels to support higher-current 240V circuits.
• Replacing worn or failed breakers during scheduled maintenance to restore quick, reliable protection.
• Field installations in commercial spaces and light industrial applications where a dependable 2-pole, 240V breaker is required.

Why choose this Siemens breaker

• Built for reliability in 240V distribution with a straightforward bolt-on install that reduces service time.
• Part-number specificity (QJH22B175) ensures you’re selecting the exact device intended for your panel configuration.
• Ideal for maintenance cycles, panel retrofits, and replacement projects where clear compatibility guidance is essential.

Practical tips for installation and care

• Always verify panel compatibility with the QJH22B175 and confirm the ratings match your circuit requirements before install.
• Prepare the work area for safe, power-off installation and keep the panel label or service manual handy for reference.
• During replacements, ensure the breaker’s physical fit aligns with the busbar geometry and mounting provisions of your Siemens panel.

For reliable, high-current protection in 240V circuits, the Siemens QJH22B175 2-Pole, 175A bolt-on circuit breaker offers a precise, field-ready solution. It’s purpose-built for maintenance, retrofit, and replacement tasks—helping you protect critical loads with confidence.