Solar PV & ESS DC Disconnect Switch Supply – South Carolina Solar Contractors

Power your solar installations with premium DC disconnect switches engineered for South Carolina's demanding climate. ValuAdd delivers UL 98B certified INOSYS and SIRCO disconnect solutions with up to 1500 VDC capacity, visible contact verification, and arc fault containment—essential for safe, compliant solar PV and energy storage systems across the Palmetto State.

Professional solar DC disconnect switch installation on commercial PV system

Our DC Disconnect Switch Solutions

Complete range of certified disconnect switches engineered for safe, reliable solar PV and energy storage system protection.

INOSYS LBS UL 98B Disconnect Switches

Premium disconnect switches with 750 VDC breaking capacity per pole, visible contacts with arc fault containment, and direct position indication. Rated up to 1500 VDC with current ratings from 10A to 1200A for comprehensive solar installations.

SIRCO MOT DC ESS Switches

High-performance 1500 VDC rated disconnect switches with 2000A capacity and motorized remote operation. Features patented arc extinguishing technology and environmental testing for salt spray, humidity, and extreme temperatures.

SIRCO UL 98 C Heavy Duty Switches

Industrial-grade power circuit protection with double-breaking per pole design and 800 VAC safety isolation. UL 98C certified with current ranges from 400A to 1000A for demanding commercial solar applications.

RMS Modular Fuse Holders

Compact 100 kA breaking capacity fuse holders with IP2X safety protection and built-in fuse melting indicators. Available in 45-mm modular format for flexible solar combiner box installations.

Custom DC Switching Solutions

Engineered configurations for unique solar PV and ESS requirements. Our technical team designs tailored disconnect solutions meeting specific voltage, current, and environmental specifications for South Carolina installations.

Mounting & Accessory Components

Complete installation accessories including busbar supports, cable ties, mounting bases, and connection hardware. All components certified halogen-free with UV resistance for outdoor solar applications.

UL 98B Certified Excellence

Certified Safety & Performance for Solar Installations

South Carolina's solar market demands disconnect switches that withstand coastal humidity, intense summer heat, and storm conditions. Our INOSYS and SIRCO product lines deliver UL 98B and IEC 60947-3 certified performance with visible contact verification, patented arc fault containment, and breaking capacities engineered for modern high-voltage solar arrays. Every switch features tool-free access, non-polarized wiring for faster installation, and operation tested from -40°F to 122°F with no derating required—ensuring your solar investments operate safely year-round.

UL certified DC disconnect switch with visible contacts for solar PV system
Proven Performance

Trusted By Industry Leaders

Powering critical solar installations for manufacturers and industrial facilities nationwide.

"ValuAdd provided excellent guidance on selecting the right ROG sensor diameter for our busbar configuration. The integration with our DIRIS meters was seamless."

Sarah Rodriguez

"The quality of American Electrical components through ValuAdd has been outstanding. Their technical datasheets and multilingual support make specification easy."

Sarah Patterson

"ValuAdd's deep knowledge of electrical components and their manufacturer relationships have been invaluable for our panel building projects. They consistently deliver the right solutions."

Mike Johnson

"ValuAdd provided excellent guidance on selecting the right ROG sensor diameter for our busbar configuration. The integration with our DIRIS meters was seamless."

Sarah Rodriguez

"The quality of American Electrical components through ValuAdd has been outstanding. Their technical datasheets and multilingual support make specification easy."

Sarah Patterson

"ValuAdd's deep knowledge of electrical components and their manufacturer relationships have been invaluable for our panel building projects. They consistently deliver the right solutions."

Mike Johnson

"ValuAdd provided excellent guidance on selecting the right ROG sensor diameter for our busbar configuration. The integration with our DIRIS meters was seamless."

Sarah Rodriguez

"The quality of American Electrical components through ValuAdd has been outstanding. Their technical datasheets and multilingual support make specification easy."

Sarah Patterson

"ValuAdd's deep knowledge of electrical components and their manufacturer relationships have been invaluable for our panel building projects. They consistently deliver the right solutions."

Mike Johnson
The ValuAdd Difference

Why Choose ValuAdd for Your Disconnect Switch Needs?

Advanced industrial solutions backed by technical expertise and comprehensive support.

Certified Quality

UL 98B, CE, and IEC certified products meeting South Carolina electrical code requirements and NEC Article 690 solar disconnect specifications.

Technical Expertise

Factory-trained specialists provide component selection guidance, custom engineering solutions, and territory-based support for South Carolina contractors.

Harsh Environment Rated

Products tested for vibration, salt spray, extreme temperatures, and humidity—engineered to excel in South Carolina's coastal and inland conditions.

Fast Delivery

Streamlined logistics and inventory management ensure quick turnaround on standard and custom disconnect switch configurations for time-sensitive solar projects.

Meet Our Technical Specialists

Expert engineers dedicated to your project success.

Professional headshot of Michael Johnson, Plant Engineer

Michael Johnson

Plant Engineer, Industrial Manufacturing

Michael brings extensive experience in machinery protection and reducing unexpected downtime in manufacturing facilities. His expertise in variable frequency drive installations has helped countless industrial operations achieve optimal motor control and energy efficiency. Michael specializes in troubleshooting complex VFD systems and implementing preventive maintenance programs that extend equipment life and reduce operational costs. His hands-on approach to problem-solving and deep understanding of industrial processes make him an invaluable resource for facilities requiring reliable VFD solutions. Michael's commitment to safety and adherence to industry standards ensures every installation meets the highest quality requirements.

Sarah Rodriguez, Electrical Engineer at ValuAdd

Sarah Rodriguez

Electrical Engineer, System Integrator

Sarah Rodriguez specializes in the selection and implementation of soft starters for critical applications across various industrial sectors. Her technical expertise encompasses medium voltage VFD systems, power monitoring solutions, and integrated control panel design. Sarah's approach to system integration focuses on optimizing performance while ensuring compliance with IEEE 519 standards and NEMA requirements. She has successfully implemented VFD solutions for water treatment facilities, oil and gas operations, and manufacturing plants. Sarah's ability to translate complex technical requirements into practical, reliable solutions has earned her recognition as a trusted advisor for system integrators and facility managers seeking advanced motor control technologies.

Frequently Asked Questions

Do you need a solar disconnect switch?

Yes, the National Electrical Code (NEC) Article 690 requires a readily accessible disconnect means for all solar PV systems. This safety device allows first responders and maintenance personnel to completely de-energize the solar array, protecting both people and equipment during emergencies or service work.

What is the code for solar disconnect switch?

What voltage rating do I need for my solar disconnect switch?

Can I use AC-rated disconnect switches for solar DC applications?

How do I determine the correct current rating for my solar disconnect?

What is arc fault containment and why does it matter?

Do your disconnect switches work with energy storage systems (ESS)?

What lead time should I expect for disconnect switch orders?

Need Help Selecting the Right Disconnect Switch?

Our engineers provide free technical consultations to ensure code-compliant, safe solar installations.

Get Expert Disconnect Switch Guidance for Your Solar Project

Complete the form below and our technical specialists will respond within 24 hours with product recommendations, pricing, and delivery information.

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