Siemens | QJ3B17500S01 | Circuit Breaker | 175A | 3-Pole | 240V

Siemens QJ3B17500S01 Circuit Breaker is built for precise overcurrent protection in three‑phase electrical systems. Designed for reliability in maintenance, retrofit, and replacement projects, this 175A, 3‑pole device handles 240V applications with exacting compatibility. The part number QJ3B17500S01 is the strongest reference for ensuring a correct fit, helping you avoid mismatches during panel upgrades.

Key specifications

• Amperage: 175 A
• Poles: 3‑Pole
• Voltage: 240 V
• Part number: QJ3B17500S01

Why this Siemens breaker stands out

Choosing this unit means selecting a device that is purpose‑built to integrate with Siemens panels that require the QJ3B family form factor. The 3‑pole design supports balanced protection across three conductors in three‑phase systems, while the 175A rating protects feeders and equipment without unnecessary trips in typical 240V workloads. This is not a generic substitute—the QJ3B17500S01 is engineered to align with Siemens electrical protection standards, ensuring dependable performance when it matters most.

Who should consider it

Ideal for electrical contractors, facilities managers, and service technicians performing panel maintenance, retrofit upgrades, or replacements. If you’re upgrading an installation or restoring original protection, verify that the amperage and pole configuration match your panel’s requirements to maintain code compliance and protective reliability.

Compatibility and installation tips

• Always confirm fit and ratings before ordering. The QJ3B17500S01 part number is the best reference for compatibility.
• Review your panel labeling to ensure a 3‑pole, 175A, 240V breaker matches the slot and bus configuration.
• When replacing an existing unit, preserve the same protection characteristics to maintain expected electrical behavior.

With its exact specifications and clean compatibility reference, this Siemens circuit breaker is a practical, dependable choice for maintenance windows, panel retrofits, or replacement scenarios where matching the original hardware is essential. Ensure you select the exact part number to keep your electrical system safe, compliant, and performing as designed.