Siemens | HQJ23B225H00S01 | Circuit Breaker | 225A | 3-Pole | 240V | Bolt-On

Siemens HQJ23B225H00S01 is a high-capacity circuit breaker designed for demanding three-phase electrical systems. With a 225A rating and three poles, this bolt-on unit protects major feeders and motors in commercial, industrial, and data-center environments. Built for maintenance, retrofit, and replacement projects, it provides reliable overload and short-circuit protection while integrating with existing Siemens panels that support bolt-on accessories.

Key benefits of choosing the HQJ23B225H00S01:

• 225A current protection matches heavy-load circuits and motor feeders, helping prevent nuisance trips while keeping equipment safe.
• 3-Pole configuration supports 3-phase 240V systems, ideal for balanced distribution across three hot legs.
• Bolt-On mounting delivers a secure, vibration-resistant connection, simplifying field installation in compatible panels and enclosures.
• Precise compatibility via part number The HQJ23B225H00S01 reference ensures you’re selecting a matching component for your Siemens panel. Always confirm fit and ratings against your panel documentation before ordering.
• Ideal for retrofit and replacement projects When upgrading or refreshing an aging main feeder or branch circuit protection, this bolt-on breaker enables quicker swaps with minimal panel modification.

Who should consider this breaker? It’s well-suited for facilities with three-phase loads such as large HVAC compressors, industrial motors, machine tool lines, and server/UPS rooms where consistent protection and quick, reliable maintenance are priorities. If your panel supports bolt-on trip devices and you need a robust 225A protection option at 240V, this unit is a strong match.

Technical snapshot for quick reference:

• Amperage: 225A
• Poles: 3-Pole
• Voltage: 240V
• Mounting: Bolt-On
• Part number: HQJ23B225H00S01

Practical tips for installation and use: ensure your panel is compatible with bolt-on breakers and that the bus configuration aligns with a 3-pole 240V breaker. Verify lugs, torque specs, and panel labeling with your electrical supervisor or a qualified electrician. This unit is designed for professional installation in accordance with local electrical codes and Siemens installation guidelines.