Wholesale Three Phase Meter Box Manufacturers & Supplier

SMC (Sheet Molding Compound) is an advanced thermosetting composite of unsaturated polyester resin and chopped glass fiber. Unlike cold-rolled steel or painted iron, SMC is completely immune to galvanic corrosion, saline air, and acid precipitation. In coastal substations or seaside industrial installations, SMC meter boxes deliver a maintenance-free service life exceeding 30 years outdoors, removing the risk of corrosion-induced short circuits or costly recoating programs.

For loads above 100A, direct-connected meters are replaced with CT-operated setups. Models like the TY-SXS3 Series feature dedicated transformer compartments with removable mounting plates, integrated test blocks, and transparent polycarbonate phase barriers. This setup ensures isolation between the secondary metering circuitry and primary busbars, meeting global utility safety and seal standards.

Yes. Our factory provides full OEM and ODM services. We produce custom punch plates, install DIN rails, brass terminal blocks, and custom cable entry glands (such as PG or metric knockouts). Viewing windows can be configured in UV-stabilized clear polycarbonate with padlockable hinged flaps to support visual meter inspection while preventing unauthorized tampering.

Standard three-phase metering assemblies are engineered with high-conductivity electrolytic copper busbars (plated with tin or silver). These support rated operational currents from 10A up to 250A and are type-tested for a rated short-time withstand current (Icw) of up to 30 kA for 1 second, maintaining thermal and electrodynamic stability during severe upstream line faults.

Standard catalog sample boxes ship within 3 to 5 business days for evaluation. Custom-molded prototypes or customized internal breaker configurations take 10 to 14 days. For bulk wholesale container shipments (20GP / 40HQ), production cycles range between 20 and 30 days, backed by our large-scale press shop and finished goods warehouse in Yueqing.