Photovoltaic combiner box circuit breaker price

PV combiner boxes with circuit breakers typically range from around $50 to $250 depending on string capacity, features, and brand.

Price Ranges and Options2-

String P

V Combiner Boxes: These are compact units suitable for small residential systems. They often include DC circuit breakers, anti-reverse diodes, fuses, and surge protection. Prices for 2-string boxes generally start around $50–$100 depending on the manufacturer and included accessories (ATO.com, Amazon).

4-String PV Combiner Boxes: Designed for larger residential or small commercial systems, these boxes include DC circuit breakers, fuses, and Type 2 surge protection devices. They are typically IP65 rated for outdoor use. Prices for 4-string combiner boxes range from $150–$250 (ETEK Electric).

Premium or Multi-

Function Boxes: Some combiner boxes come with integrated AC/DC breakers, surge protection, and compatibility with specific inverters (e.g., POW SunSmart 10K). These packages, including multiple breakers and surge devices, are priced around $200–$250 on Amazon.

Key Features Affecting Price

Number of Input Strings: More strings require larger boxes and additional breakers, increasing cost. Circuit Breaker Ratings: Higher amperage breakers (e.g., 25A, 63A, 125A) or multiple poles add to the price. Protection Features: Built-in surge protection, anti-reverse diodes, and fuses enhance safety but increase cost.

Enclosure Quality: IP65 waterproof and dustproof enclosures made from ABS or PPC plastics are standard for outdoor use. Brand and Warranty: Established brands like Midnite Solar, ETEK, or POW SunSmart may charge a premium for reliability and support.

Buying Tips

Determine the number of PV strings in your system to select the correct combiner box size. Consider future expansion; it's easier to add breakers than replace the entire box.

Check for I

P rating and outdoor suitability if installing near the solar array. Compare online retailers like Amazon, ATO.com, and specialized solar stores for pricing and shipping options. By evaluating these factors, you can select a PV combiner box with circuit breakers that fits your system size and budget while ensuring safety and durability.