Siemens | HQJ23B175HA01 | Circuit Breaker | 175A | 3-Pole | 240V | Bolt-On

Meet the Siemens HQJ23B175HA01 Circuit Breaker—a robust 175A, 3-pole, 240V protective device designed for demanding electrical environments. Built for maintenance, retrofit, and replacement projects, this bolt-on breaker delivers dependable three‑phase protection that keeps motors, drives, and distribution panels safe and running smoothly.

Key specifications

• Amperage: 175A
• Poles: 3-Pole (three-phase)
• Voltage rating: 240V
• Mounting: Bolt-On
• Part reference: HQJ23B175HA01

Why this Siemens circuit breaker stands out

• Designed for reliable three‑phase protection in 240V electrical systems, ideal for commercial and industrial panels.
• Bolt‑on mounting enables straightforward, secure installation with compatible Siemens gear, minimizing downtime during service or retrofit.
• OEM compatibility from Siemens reduces retrofit risk and ensures coordinated protection with existing protection schemes.
• Part number HQJ23B175HA01 serves as the most accurate reference for compatibility checks, helping you avoid mismatches during procurement.

Ideal use scenarios

• Maintenance on existing Siemens panels that require a 3-pole, 175A protective device.
• Retrofits to upgrade three‑phase protection in industrial facilities, manufacturing lines, or data center ancillary systems.
• Replacement of a failed breaker with a precisely matched rating to restore original protection characteristics.

Fit, compatibility, and practical notes

Before ordering, verify that the application matches the 175A, 3-pole, 240V specifications. The HQJ23B175HA01 part number is the best reference for compatibility with your panel model and bus configuration. When installing, follow standard lockout/tagout procedures and the panel manufacturer’s torque and mounting guidelines to ensure a secure, reliable fit.

Operational outcomes you can expect

• Consistent protection for three‑phase loads, helping prevent equipment damage from overcurrent events.
• Minimized installation friction thanks to bolt‑on simplicity, speeding up service calls and maintenance windows.
• Peace of mind from using an OEM component designed to integrate with Siemens protection schemes and panels.