Siemens | HQJ23B150H01S07 | Circuit Breaker | 150A | 3-Pole | 240V | Bolt-On

Siemens HQJ23B150H01S07 Circuit Breaker delivers robust overcurrent protection for 3‑phase, 240V electrical systems. With a 150A rating and three poles, this bolt‑on device is designed for dependable performance in maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications

• Amperage: 150A
• Poles: 3‑Pole
• Voltage: 240V
• Mounting: Bolt‑On
• Reference: HQJ23B150H01S07 for precise compatibility

Why this Siemens breaker stands out

• Secure bolt‑on mounting provides a solid mechanical connection less prone to loosening from vibration or panel flex, which is crucial in busy electrical environments.
• Exact 150A protection targets heavy‑duty circuits while enabling safe headroom for startup surges in 3‑phase equipment.
• 3‑pole design enables clean, balanced protection across a 3‑phase distribution, reducing the risk of neutral or ground imbalances.
• Siemens reliability leverages established engineering standards for long‑term reliability in commercial and light industrial panels.
• Exact part reference HQJ23B150H01S07 is the best compatibility anchor, ensuring you’re selecting the correct component for your panel and bus setup.

Ideal use cases

• Replacement in service panels that require a 150A, 3‑pole, 240V bolt‑on circuit breaker
• Retrofits or upgrades in commercial electrical rooms where Siemens HQJ‑style breakers are specified
• Protection for 3‑phase motors, contactors, and other heavy‑duty loads in manufacturing or HVAC applications
• Maintenance cycles that demand a proven, interoperable breaker with clear compatibility references

Compatibility and installation considerations

Before ordering, confirm fit and ratings against your panel’s requirements. The part number HQJ23B150H01S07 is the most reliable reference for compatibility, ensuring correct mounting, trip characteristics, and electrical fit within Siemens control and distribution systems. Follow your panel manufacturer’s installation guidelines and torque specifications for bolt‑on accessories to maintain panel integrity and safety.

Practical tips and insights

• Keep a spare HQJ23B150H01S07 on hand for planned maintenance to minimize downtime.
• Document the exact part number when recording panel inventories to simplify future replacements and audits.
• Pair with compatible Siemens accessories to maintain coordinated protection schemes across your 3‑phase circuit networks.