Siemens HMG3T800L 800A 3-Pole 600 V Circuit Breaker

The Siemens HMG3T800L 800A 3-Pole 600 V Circuit Breaker is engineered for demanding 600 V three-phase power systems. With an 800 A current rating and three poles, this unit delivers robust protection for high-load feeders and critical equipment in industrial and commercial environments. Built by Siemens, it combines precise protection with dependable operation, helping minimize downtime and protect wiring, busbars, and connected gear from overcurrent events.

Specifications at a glance

• Current rating: 800 A
• Poles: 3
• Voltage rating: 600 V
• Part number: HMG3T800L
• Brand: Siemens

Why this model stands out

• Designed for heavy-duty three-phase distribution, delivering reliable protection in high-demand installations.
• Siemens engineering ensures consistent performance, aligned with standard 600 V industrial panels and enclosures.
• Part number HMG3T800L provides a precise, traceable specification for procurement, maintenance, and replacement planning.

Ideal use cases

• Main protection for 600 V three-phase distribution systems in manufacturing plants, processing facilities, and large commercial buildings.
• Protection for feeders powering heavy equipment, motors, HVAC systems, and processing lines that require robust current handling.
• Upgrade or replacement project where an 800 A, 3-pole solution is needed to meet current load requirements.

How it solves common problems

• Prevents damage from short circuits and overloads by interrupting fault currents in a timely, reliable manner.
• Helps maintain power reliability for critical operations by serving as a dependable line-side protective device.
• Supports straightforward procurement and maintenance with a clearly identified Siemens part number for inventory control.

Installation and care tips

Work with a licensed electrical professional to verify panel compatibility and installation in accordance with local codes. Refer to Siemens installation guidelines for torque specifications, mounting clearances, and wiring conventions. Regular inspection of connections and protected circuits will help sustain optimal performance and safety over the breaker's service life.