600 Amp Meter Main Combo | Large-Service Meter Panels

A 600-amp service generally requires at least 3-inch or 3.5-inch rigid metal conduit (RMC) depending on the conductor configuration and whether parallel runs are used. Conduit sizing must comply with NEC Chapter 9 fill calculations and your local utility specifications. Consult your utility and AHJ for final conduit sizing requirements.

A 600 Amp Meter Main Combo panel integrates a utility meter socket and a main circuit breaker or disconnect into a single enclosure. This all-in-one design simplifies installation, reduces footprint, and ensures code-compliant metering and overcurrent protection for large-service commercial and industrial electrical systems.

The 600 Amp Meter Main is available in multiple voltage configurations including 120/240V, 208Y/120V, 240V, 240/120V, 480V, 480Y/277V, and 415/240V. This flexibility makes it suitable for a wide range of commercial, industrial, and utility power distribution requirements.

These meter main panels are available in NEMA 1 (indoor) and NEMA 3R (outdoor, weather-resistant) enclosures. The NEMA 3R rating provides protection against rain, sleet, and ice formation, making it suitable for exterior installations such as utility yards, industrial sites, and commercial building exteriors.

Yes. All meter main panels meet the structural requirements for all seismic zones under the Uniform Building Code (UBC), California Building Code (CBC), and International Building Code (IBC). This makes them appropriate for installation across the continental United States, including high-seismic-risk regions such as California.

These panels are UL 891 certified for low-voltage switchgear, EUSERC approved for utility metering compatibility, and UL listed for assembly code compliance. They are built by an approved Siemens OEM, ensuring component authenticity and compliance with applicable electrical codes and utility standards.