Siemens HMX3V800L 800A 3-Pole 3 V Circuit Breaker

Siemens HMX3V800L 800A 3-Pole 3 V Circuit Breaker is engineered for demanding three-phase electrical systems where reliable protection and rapid fault isolation are essential. With an 800 A current rating and a 3-pole configuration, this unit is designed to safeguard large feeders, motors, and critical equipment in industrial and commercial environments. The part number is HMX3V800L, ensuring a precise fit within Siemens panels and compatible distribution setups.

• Part Number: HMX3V800L
• Current Rating: 800 A
• Poles: 3
• Voltage Rating: 3 V

What makes this circuit breaker stand out

Designed for high-demand, three-phase systems, the Siemens HMX3V800L delivers dependable overcurrent protection where large current handling and fast interruption are critical. Its 3-pole construction ensures coordinated protection across all three phases, helping prevent unbalanced loads and equipment damage in heavy-duty applications.

Ideal use cases

• Main disconnect for 3-phase electrical panels serving heavy machinery and manufacturing lines
• Protection for large motor feeders in industrial settings, such as pumps, compressors, and CNC equipment
• Critical protection in commercial facilities with substantial electrical loads requiring robust circuit isolation

Why choose the Siemens HMX3V800L in your system

• Trusted Siemens engineering and build quality that supports reliable protection in high-current environments
• Clear, unambiguous current rating (800 A) and 3-pole configuration tailored for 3-phase distribution
• Designed for integration with compatible Siemens panels and distribution hardware to streamline installation and maintenance

Practical guidance for deployment

Before installation, verify compatibility with your panel’s rating and follow safe, manufacturer-recommended installation practices. Ensure the enclosure, bus connections, and wiring gauge are suitable for an 800 A, 3-pole device, and adhere to all local electrical codes and standards. Regular inspection of connections and routine testing in accordance with your facility’s maintenance plan will help preserve optimal protection performance.