--- product_id: 21122534 title: "MidNite Solar MNSPD-300-DC Surge Protection Device 300VDC" brand: "midnite solar" price: "37388 kr" currency: ISK in_stock: true category: "Mid Nite Solar" url: https://www.desertcart.is/products/21122534-midnite-solar-mnspd-300-dc-surge-protection-device-300vdc store_origin: IS region: Iceland --- # 300V DC surge protection Type 4X outdoor rating 5-year USA warranty MidNite Solar MNSPD-300-DC Surge Protection Device 300VDC **Brand:** midnite solar **Price:** 37388 kr **Availability:** ✅ In Stock ## Summary > ⚡ Protect your power like a pro — surge defense that never sleeps! ## Quick Answers - **What is this?** MidNite Solar MNSPD-300-DC Surge Protection Device 300VDC by midnite solar - **How much does it cost?** 37388 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/21122534-midnite-solar-mnspd-300-dc-surge-protection-device-300vdc) ## Best For - midnite solar enthusiasts ## Why This Product - Trusted midnite solar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact Powerhouse:** Lightweight 1 lb design fits discreetly in tight spaces without compromising performance. - • **Dual-Voltage Mastery:** Seamlessly guards both AC & DC systems up to 300V for ultimate versatility. - • **Built for the Elements:** Type 4X rating ensures rugged, weatherproof protection wherever you install it. - • **Visual Status at a Glance:** Intuitive LED indicators powered by system type keep you informed in real time. - • **Trusted American Craftsmanship:** Proudly made in the USA with a 5-year warranty for peace of mind. ## Overview The MidNite Solar MNSPD-300-DC is a UL1449 Type 1 surge protection device engineered for both AC and DC circuits up to 300 volts. With a rugged Type 4X outdoor rating, it offers reliable defense against power surges in solar and electrical systems. Featuring system-powered LED indicators and a compact 1 lb form factor, this USA-made SPD comes backed by a 5-year warranty, making it a trusted choice for professional-grade surge protection. ## Description MidNite Solar Surge Protection Device MNSPD-300-DC The MidNite Solar Surge Protector Device (MNSPD) is a Type 1 device per UL1449 rev3. It is designed for both AC and DC systems and provides protection to service panels, load centers or where the SPD is directly connected to the electronic device requiring protection. Protection for Classic and other charge controllers, off grid PV combiners and 120/240 VAC circuits. The DC SPD will work well on all DC circuits up to 300 volts as well as any 120/240 VAC circuits. The difference between the AC and DC SPD is the way the LED's are powered. The protection side of things is identical. FAQI ordered the MNSPD-300-DC. Why does my unit say MNSPD-300-AC? All units are labeled "MNSPD-300-AC," however, the marking on the box indicates whether the unit is AC or DC. All units are compatible with both AC and DC systems regardless of the box markings, the only difference is how the indicator lights work. Each unit has several lights and a DC unit hooked up to a DC system will power all of the indicator lights and vice versa; an AC unit hooked up to an AC system will power all of the indicator lights. If you hook a DC unit to an AC system, however, only 1 of the indicator lights will work and vice versa, but the unit will still be safe and function properly. Why aren't all my lights on the MNSPD-300 working? When you try and connect the MSNDP-300-AC on a DC circuit or vice versa, only 1 LED will illuminate, however, the MNSPD-300 is still fully functional. In order that all of the lights work, you would need to connect an AC unit on an AC circuit and a DC unit on a DC circuit. ## Features - Environmental Rating - Type 4X (Outdoor) - Warranty - 5 yrs - Made in the USA - Size: 4.4"L x 3.8"W x 3.5"D - Weight: 1 Lb ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #52,117 in Electronics ( See Top 100 in Electronics ) #462 in Surge Protectors | | Customer Reviews | 4.8 out of 5 stars 97 Reviews | ## Images ![MidNite Solar MNSPD-300-DC Surge Protection Device 300VDC - Image 1](https://m.media-amazon.com/images/I/61wM0jl+jdL.jpg) ![MidNite Solar MNSPD-300-DC Surge Protection Device 300VDC - Image 2](https://m.media-amazon.com/images/I/71sTQQq2IgL.jpg) ![MidNite Solar MNSPD-300-DC Surge Protection Device 300VDC - Image 3](https://m.media-amazon.com/images/I/71ufBqhcg3L.jpg) ![MidNite Solar MNSPD-300-DC Surge Protection Device 300VDC - Image 4](https://m.media-amazon.com/images/I/713b-ifD0OL.jpg) ## Questions & Answers **Q: Asked my solar consultant if I need a product like this. He said they are more likely to cause a fire than protect anything. Any comments?** A: That is absolutely false. There are some cheap Metal Oxide Varistor (MOV) surge suppressors on the market that have the potential to cause fires but all Midnite SPD Surge Protectors have thermal protection and are ETL certified to UL 1449 standards for risk of fire and electrical shock. We've sold thousands of Midnite SPD's over the years and have never had one catch fire. We HIGHLY recommend adding surge suppression to all solar-electric systems to protect your expensive equipment from lightning induced voltage surges. For more information visit Midnite's product page where you can find spec sheets, manuals, articles and videos. https://www.midnitesolar.com/productPhoto.php?product_ID=284&productCatName=Surge%20Protection%20Devices&productCat_ID=23&sortOrder=2&act=pc **Q: Is there a wiring diagram for this?** A: Yes on midnight Solar's website, and YouTube it was super simple **Q: Does one protect against emp? is so, which one??** A: Yes, these protect whatever lines they are wired to. Select the model that is closest to, but higher than, the voltage of the wires you are protecting. The 115V for low voltage AC and DC lines, the 300-AC or 300-DC for higher voltage DC lines and 120V/240V AC lines, and the 600V for high voltage lines. For more complete EMP protection, check out the EMP Hardening Kit. https://smile.amazon.com/Generic-EMP-Hardening-Kit/dp/B0BHKP2Y5F/ref=sr_1_2?crid=2OYV2TK1SY7XB&keywords=emp+hardening+kit&qid=1669680446&sprefix=emp+hardening+k%2Caps%2C574&sr=8-2&ufe=app_do%3Aamzn1.fos.08f69ac3-fd3d-4b88-bca2-8997e41410bb **Q: If I have a combiner box with 4 wires running from two arrays running to two charge controllers do I need two surge protectors?** A: You should use 4 surge suppressors. One suppressor at each end of each positive/negative wire pair. So you will have 2 suppressors at your combiner box to protect the solar arrays, and one suppressor at the input of each charge controller so they are protected. ## Frequently Bought Together - MidNite Solar MNSPD-300-DC Surge Protection Device 300VDC - MidNite Solar Surge Protection Device MNSPD-300-AC - Midnite Solar-MNSPD115 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.is/products/21122534-midnite-solar-mnspd-300-dc-surge-protection-device-300vdc](https://www.desertcart.is/products/21122534-midnite-solar-mnspd-300-dc-surge-protection-device-300vdc) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-09-11*