Siemens HEG3B110L 110A 3-Pole 600 V Circuit Breaker

Siemens HEG3B110L is a 3-pole circuit breaker engineered for robust protection in demanding 3-phase electrical systems. With a 110 A current rating and a 600 V maximum operating voltage, this device is built to safeguard industrial equipment and commercial installations while fitting seamlessly into Siemens panels and electrical distributions. Part Number HEG3B110L identifies a trusted component designed to maintain reliable power control in active environments.

Key features

• Current rating: 110 A
• Poles: 3 (3-pole) for synchronized protection across all three phases
• Voltage rating: 600 V
• Part Number: HEG3B110L
• Designed for compatibility with Siemens panel systems and standard industrial bus arrangements

Why it matters in your system

In a three-phase setup, the HEG3B110L protects all conductors simultaneously, helping to prevent motor stalls, equipment damage, and unbalanced loads. The 110 A rating is well-suited for feeders and circuits that routinely approach high load levels, ensuring timely interruption during overloads while supporting efficient operation of heavy-duty equipment such as motors, compressors, and conveyors.

Ideal use cases

• Protecting 3-phase motors and equipment in manufacturing, HVAC, and material handling applications
• Feeding 3-phase distribution panels in warehouses, data centers, and other facilities that rely on 600 V systems
• Replacing or upgrading existing 3-pole breakers in Siemens-compatible electrical installations

Installation and compatibility tips

Ensure your system requires a 3-pole, 110 A breaker rated for 600 V and that the unit is compatible with your Siemens panel and bus configuration. For safety and compliance, have a qualified electrician perform installation and adhere to all local electrical codes and standards.