DC solar circuit protection
Noark Electric
DC circuit breakers for solar and battery circuits
Compare Noark DC breakers by pole count, current rating and voltage rating for the circuit you're protecting.
Explore Noark Electric non-polarised DC solar circuit breakers for reliable off-grid system protection.
Choose by requirement
Check every rating on the breaker
The right breaker depends on the source, cable, voltage, fault current and how the circuit is wired.
Noark DC breakers
Customer stories
Five-star support, from planning to after-sales
A rotating five-star selection from around 150 Google reviews for Solar 4 RVs equipment, advice and ongoing support.
Absolutely stellar service from Cameron at Solar 4 RVs. Initially had him quote up a solar system for my campervan back in June 2024 and then when I was ready to purchase in November 2024 he was able to give me the best prices for every product and so I went ahead with the order.
Also gave me some tips to commission the system once I installed the products. Stoked on the Victron gear. Thanks guys!
Purchased a 12v/15a battery charger in 2023. Had issues with it today (2025). Called their info number and explained. Instantly agreed to accept it as a warranty issue and dispatched a replacement without any problems. Extremely quick service and item dispatched express courier that same day. Outstanding customer service. Thank you.
Purchased a literal boat load of electronics from them for our vessel. It all works great and they did an amazing job setting up the panel. We have had the gear a few years now and still reach out when we need help. Great customer service!
Not sure which Noark product suits your system? Send our technical team the model you are considering and your system details, and we will check the surrounding parts.
Ask our technical teamFrom the Solar 4 RVs library
Noark breaker selection guides
Guides on matching a breaker to the cable rating, operating current, maximum DC voltage and fault conditions.
Should I Use a DC Circuit Breaker or Fuse?
Delve into our guide on whether to use circuit breakers or fuses in 12V DC systems. Ideal for caravans, marine or off-grid setups, understand...
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How to Read Fuse Ratings | Understanding Fuse Specifications
Learn how to interpret breaking force, current rating, time curve, resistance, voltage rating, and temperature rating to choose the right fuse for your specific...
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Why ‘Continuous’ Ratings Can Prevent Fires and Equipment Failures
In power systems, ignoring continuous ratings isn't just a minor oversight—it's risking safety, efficiency, and longevity. Installers and buyers often focus on impressive peak...
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Solar Panel Wiring Guide
SOLAR 4 RVS OFF-GRID, EXTRA LOW VOLTAGE SOLAR PANEL WIRING GUIDE Please read this document in full before commencing installation. To maximise the...
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Ultimate DC Cable Sizing / System Wiring Calculator for RVs/Caravans
This interactive calculator will help you understand your RV's full power system, including the inverter, battery charger, DC-DC Charger, battery, solar panels, MPPT, and...
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How to Read Solar Panel Specifications: Decoding STC, Voc and More
Navigate the complex world of solar panel specifications with our comprehensive guide. Learn about STC, NOCT, and more to choose the right solar panel...
Read guideAbout this range
Reliable Noark Electric DC Circuit Breakers
Safeguard your 12V, 24V, and 48V off-grid electrical setups with premium Noark Electric components. Known globally for manufacturing highly dependable electrical distribution and control products, Noark delivers intelligent circuit protection designed to handle the demanding conditions of off-grid travel. Whether you are wiring a comprehensive solar array on a motorhome, upgrading the power system in a marine vessel, or building a standalone off-grid tiny home, these breakers offer the robust protection your investments require.
When designing an off-grid solar system, customers frequently ask if Noark is a good brand that can withstand continuous use. Noark Electric has established itself as a leading global supplier, providing uncompromising quality across circuit breakers, contactors, switchgear, and intelligent control relays. Their strict manufacturing standards ensure that every component meets the rigorous demands of consistent DC power flow, making them an excellent, trustworthy choice for 4WDs, caravans, and industrial applications.
Non-Polarised DC Solar Circuit Breakers
Our carefully curated selection focuses on Noark's highly capable 2-Pole 360V Non-Polarised DC Solar Circuit Breakers. When dealing with solar panels and deep cycle batteries, DC arcs are notoriously difficult to extinguish compared to AC power. A non-polarised breaker provides critical safety because it can effectively interrupt current regardless of the direction of flow. This is especially vital in battery-connected solar setups where fault currents can potentially flow in either direction.
- Broad Amperage Range: Available in precise sizing increments including 10A, 16A, 20A, 25A, 32A, 40A, 50A, and 63A to perfectly match your Solar Cables and overall system load.
- Non-Polarised Design: Ensures safe and effective arc extinguishing no matter which way the current is flowing, improving overall system safety.
- High Voltage Rating: Rated up to 360V DC, making them suitable for stringing multiple solar panels in series.
- Standardised Mounting: Designed for standard DIN rail systems, allowing for neat and professional integration alongside other DC Circuit Breakers & Enclosures.
Common Use Cases for Caravan, RV, Marine, and Off-Grid Shoppers
Choosing the right circuit protection is essential across a wide variety of mobile and off-grid environments:
Caravan & RV Solar Arrays: Used as an essential isolation point between the solar panels on the roof and the solar charge controller. This allows you to safely cut the power for maintenance, upgrades, or during transit.
Marine & Boat Systems: Providing critical circuit protection against short circuits and overloads in damp, vibration-heavy marine environments where robust switchgear is absolutely essential for onboard safety.
Off-Grid Tiny Homes & 4WDs: Acting as a reliable main disconnect or string breaker for higher voltage solar arrays feeding into large battery banks, or providing secondary protection for high-draw 4WD canopy systems.
Commercial & Industrial Trucks: Delivering heavy-duty switching and overload protection for auxiliary power systems in trucks and commercial work vehicles that demand consistent, daily performance in challenging environments.
Integrating Noark products into your broader Circuit Protection: Breakers, Fuses & Switches strategy ensures that every electrical branch in your setup is secure. Selecting the correct amperage is crucial; always size your breaker to protect the wiring and ensure it can handle the maximum short-circuit current of your specific solar array or load.
As an Australian family business with over a decade of experience, we pride ourselves on supplying high quality products backed by dedicated before and after support. Our technical team is ready to assist you with component selection, and our fast dispatch means you can get your build completed without unnecessary delays. Secure your power system today and shop our range of Noark Electric circuit breakers to experience ultra durable protection for your next off-grid adventure.











