Price List for Photovoltaic Protection Switches

Photovoltaic protection switches typically cost between $15 and $120, depending on voltage, current rating, and features.

Price Range and Examples

• Mini DC Circuit Breakers (6A–63A, 1000V DC): These compact switches for residential or small commercial PV systems are priced around $15–$40 per unit on platforms like Amazon . They provide overload and short-circuit protection and are easy to install in junction boxes or electrical enclosures.
• DC Isolation Switches (10A–40A, 300–1200V DC, IP66 waterproof): Designed for outdoor or off-grid solar systems, including RVs and boats, these switches cost approximately $40–$80 per unit . They offer weather resistance, UV protection, and safe insulation for high-current applications.
• Molded Case Circuit Breakers (up to 150A, 1000V DC): For larger commercial or industrial PV systems, heavy-duty DC MCCBs can cost $80–$120 or more per unit . These switches handle higher currents and provide robust protection for large solar arrays.

Factors Affecting Cost

1. Voltage and Current Rating: Higher voltage or amperage ratings increase the price due to more robust internal components and arc suppression mechanisms .
2. Environmental Protection: IP66 or weatherproof switches suitable for outdoor use are more expensive than indoor-rated units .
3. Brand and Certification: UL-listed or well-known brands may cost more but offer higher reliability and compliance with safety standards.
4. Additional Features: Arc suppression, magnetic blowout coils, and rapid shutdown capabilities can increase the cost .

Summary

For a typical residential solar installation, a DC mini circuit breaker or isolation switch will generally cost $15–$80, while larger commercial-grade switches can reach $120 or more. When selecting a switch, ensure it matches your system's voltage, current, and environmental requirements to maintain safety and compliance.