Siemens | HQJ23B175H01S07 | Circuit Breaker | 175A | 3-Pole | 240V

Siemens HQJ23B175H01S07 Circuit Breaker is engineered to protect three-phase, 240V electrical systems with precision. This 175A, 3-pole device is ideally suited for maintenance, retrofit, and replacement projects where exact compatibility matters. The part number HQJ23B175H01S07 is the most reliable reference for ensuring a correct fit in your panel and downstream gear.

What makes this Siemens breaker stand out

• 175 A protection for high-demand circuits: Safeguards feeders and critical loads in commercial and light-industrial setups where robust overcurrent protection is required.
• 3-pole, three-phase coverage: Simultaneously protects all three phases, helping maintain balanced operation and shielding motors and equipment from phase-related issues.
• Designed for 240 V systems: Matches common distribution schemes found in warehouses, manufacturing floors, and data centers.
• OEM-grade reliability: Built by Siemens to deliver consistent performance within Siemens panels and compatible electrical architectures.
• Smooth retrofit potential: A straightforward replacement option that minimizes downtime during panel upgrades or capacity expansions.

Specifications at a glance

• Amperage: 175 A
• Poles: 3-Pole
• Voltage: 240 V
• Part number: HQJ23B175H01S07

Installation and best-use practices

Before ordering, verify fit and ratings using the exact part number HQJ23B175H01S07 to ensure compatibility with your panel model and connected loads. When wiring, adhere to the panel manufacturer’s torque specifications for terminal connections and confirm that the breaker’s interrupting capacity aligns with the system’s protective requirements. Schedule installation during planned maintenance windows to minimize disruption and confirm proper trip behavior after replacement.

Ideal for

• Facilities managers managing commercial buildings with three-phase power
• Electrical contractors performing panel retrofits, replacements, or capacity upgrades
• Maintenance teams seeking reliable, OEM-grade spares to reduce downtime and maintain system performance

Reliably protect critical loads and keep your three-phase distribution running smoothly with the Siemens HQJ23B175H01S07 Circuit Breaker—the precise, high-capacity solution for 240V systems. Add to your cart to secure this essential OEM part for efficient maintenance and dependable operation.