Fused Disconnect Switch Supply for Industrial Applications – Virginia

Breaking capacity requirements depend on your system's available fault current. Our RMS modular fuse holders offer 100 kA breaking capacity for most industrial applications, while our SIRCO DC ESS switches provide up to 210 kA short circuit rating for high-power systems. We recommend consulting with our engineers to perform a proper fault current analysis and ensure your disconnect switch is appropriately rated for safe operation.

Yes, our INOSYS LBS UL 98B switches are specifically designed for DC/PV/ESS circuits with breaking capacity of 750 VDC per pole and voltage ratings up to 1500 VDC (also available up to 2000 VDC). These switches feature visible contacts, arc fault containment, and direct position indication—critical safety features for solar and battery storage installations.

Our disconnect switches carry comprehensive certifications including UL 98B, UL 98C, UL 4248-1, CE marking, IEC 60947-3, and IEEE 519 compliance. All components meet NEMA standards and are REACH and RoHS compliant. We provide complete certification documentation for inspection and compliance verification.

Yes, several of our solutions offer remote capabilities. The SIRCO MOT DC ESS features motorized remote operation, while our DIRIS monitoring systems provide Modbus RTU communication for integration with building management systems. We can design custom solutions incorporating remote status indication, control, and data logging based on your specific requirements.

Modular fuse holders like our RMS series offer 45-mm format flexibility, allowing you to configure protection for 1, 2, 3, 3+N, or 4 poles as needed. They include built-in fuse melting indicators and IP2X finger protection. Traditional disconnect switches like our SIRCO series provide higher current ratings (up to 2000A) and are better suited for heavy-duty power distribution applications requiring robust mechanical construction.

For motor applications, select a disconnect switch rated for at least 115% of the motor's full load current. Consider factors including locked rotor current, starting method (DOL vs soft start), duty cycle, and ambient temperature. Our engineering team can assist with proper sizing and recommend whether a standard disconnect or soft starter solution is most appropriate for your application.

Regular maintenance includes visual inspection of contacts for signs of arcing or deterioration, verification of mechanical operation, torque checking of connections, and testing of auxiliary contacts if present. Our switches feature visual position indicators and fuse melting indicators to simplify status verification. We recommend annual inspections for most industrial applications, with more frequent checks in harsh environments.

Yes, ValuAdd offers comprehensive installation support including technical documentation, application engineering assistance, and territory-based field support throughout Virginia. Our team can provide on-site training for maintenance personnel, covering proper operation, maintenance procedures, and troubleshooting. We ensure your team has the knowledge needed to safely operate and maintain your electrical protection systems.