Simplify and streamline your solar array setup with the MidNite Solar MNPV12 Combiner Box. Designed for high-voltage applications, this rugged, rainproof enclosure supports up to 12 strings and is compatible with both 300VDC charge controllers and 600VDC grid-tie inverters.
Whether you're building an off-grid system, hybrid setup, or grid-tied array, the MNPV12 offers reliable and flexible configuration options—making it a go-to solution for efficient string combining in larger PV systems.
Key Features:
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✅ Versatile Configurations – Supports:
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10-string grounded inverter (10 positive fuses)
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Dual 5-string grounded inverters (5+5 positive fuses)
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5-string transformerless inverter (5 positive + 5 negative fuses)
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✅ High Voltage Ready – For 300VDC charge controllers & 600VDC inverters
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✅ Type 3R Aluminum Enclosure – Weather-resistant for outdoor installations
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✅ Easy Integration – Includes:
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2x isolated 15-position PV negative bus bars
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1x 15-position ground bus bar
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1x 200A Plus bus bar (can be split/shared)
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✅ Made in the USA – ETL listed for USA & Canada
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✅ DIY-Friendly – Pre-drilled enclosure with insulating dead front
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✅ Flexible Sizing – 14.5" x 12" x 3.5" | Weighs 8 lbs
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🔧 Breakers and fuse holders sold separately
Pair with MNEPV breakers, MNTS fuse holders, and MNSPD surge protection devices for a complete system.
Accessories:
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QT-LATCH-5PK – Quick-release latch kit (5-pack)
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MNEPV Breakers – 150VDC DIN rail mount, 1–63A options (13mm wide)
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MN600FUSE – 10x38mm fuses for use with MNTS fuse holders
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MN1000FUSE-xx-10PK – 10x38mm industry-standard fuses (10-pack)
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MNSPD-300-DC – 300VDC Surge Protector (Type 1, outdoor-rated)
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MNSPD-600 – 600VDC Surge Protector (Type 1, outdoor-rated)
Simplify and streamline your solar array setup with the MidNite Solar MNPV12 Combiner Box. Designed for high-voltage applications, this rugged, rainproof enclosure supports up to 12 strings and is compatible with both 300VDC charge controllers and 600VDC grid-tie inverters.
Whether you're building an off-grid system, hybrid setup, or grid-tied array, the MNPV12 offers reliable and flexible configuration options—making it a go-to solution for efficient string combining in larger PV systems.
Key Features:
-
✅ Versatile Configurations – Supports:
-
10-string grounded inverter (10 positive fuses)
-
Dual 5-string grounded inverters (5+5 positive fuses)
-
5-string transformerless inverter (5 positive + 5 negative fuses)
-
-
✅ High Voltage Ready – For 300VDC charge controllers & 600VDC inverters
-
✅ Type 3R Aluminum Enclosure – Weather-resistant for outdoor installations
-
✅ Easy Integration – Includes:
-
2x isolated 15-position PV negative bus bars
-
1x 15-position ground bus bar
-
1x 200A Plus bus bar (can be split/shared)
-
-
✅ Made in the USA – ETL listed for USA & Canada
-
✅ DIY-Friendly – Pre-drilled enclosure with insulating dead front
-
✅ Flexible Sizing – 14.5" x 12" x 3.5" | Weighs 8 lbs
-
🔧 Breakers and fuse holders sold separately
Pair with MNEPV breakers, MNTS fuse holders, and MNSPD surge protection devices for a complete system.
Accessories:
-
QT-LATCH-5PK – Quick-release latch kit (5-pack)
-
MNEPV Breakers – 150VDC DIN rail mount, 1–63A options (13mm wide)
-
MN600FUSE – 10x38mm fuses for use with MNTS fuse holders
-
MN1000FUSE-xx-10PK – 10x38mm industry-standard fuses (10-pack)
-
MNSPD-300-DC – 300VDC Surge Protector (Type 1, outdoor-rated)
-
MNSPD-600 – 600VDC Surge Protector (Type 1, outdoor-rated)
MidNite Solar MNPV12 Combiner Box | 12-String | Type 3R Rainproof | Up to 600VDC | ETL Listed | Made in USA | 5-Year Warranty
- Regular price
- $279.97
- Sale price
- $279.97
- Regular price
-
$249.00
No obligation — get a custom quote in minutes
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MidNite Solar MNPV12 Combiner Box | 12-String | Type 3R Rainproof | Up to 600VDC | ETL Listed | Made in USA | 5-Year Warranty
Testimonials
50,000+ Happy Customers
Join thousands of happy customers who made the switch to solar.
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
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Frequently Asked Questions
Find the answers to some of the most common questions customers have before placing their order.
Yes. Our team can help you choose the right solar kit based on your goals, power needs, and location. We provide personalized guidance before and after your purchase at no additional cost.
Many of our customers complete the majority of installation themselves using our diagrams and support resources. For final electrical connections, a licensed electrician may be required depending on local codes.
While we do not directly install systems, we can help connect you with qualified local professionals and provide technical documentation to support your installer.
We stand behind our products. If you have specific questions about returns, eligibility, or specific product conditions, you can learn more in our help center linked below.
All components are backed by manufacturer warranties. In addition, our team provides free lifetime technical support to assist you throughout the life of your system.
Yes! We offer a variety of flexible payment plans to fit any budget. Options include monthly financing with competitive interest rates, and some plans require no money down. Apply during checkout and get approved in minutes.
If you're ready to place your order, you can go ahead and checkout online right now. If you have questions, our friendly team of solar experts are happy to assist and can take your order over the phone. If you're interested in financing, you will find the application at checkout online. So whatever is best for you, we are happy to accommodate.
Our team works hard to process all orders within 24-48 hours. Most products ship directly to your door using the quickest, most cost effective ground shipping services depending on size. You’ll receive tracking details and delivery coordination as soon as your order ships. Our average shipping times are anywhere from 3-7 days.
You’ll have direct access to our support team via phone, email, and chat. Whether it’s setup guidance or troubleshooting years down the road, we’re here to help.
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