- Description
- Shipping & Returns
- Why Buy From Us
Description
National Luna DC 40 Distribution Box
The National Luna DC-40 Distribution Box is specifically designed for fixed installations, making it ideal for use in trailers, caravans, and campers where the auxiliary batteries are separate from the charge system.
This distribution box features a high-performance 40A DC-DC charge system, offering the convenience of charging from the vehicle alternator, solar panels, and a separate DC input.
It provides multiple outputs, including USB charging ports and fused DC sockets, allowing for the connection of various 12V devices.
Moreover, the DC40 Distribution Box is versatile, supporting a wide range of battery types, including 12V lead-acid (wet, calcium, gel, AGM) as well as lithium batteries. Order yours online today!
What's Included
Avoid the headaches! - Everything you need is included with the National Luna DC-40 Distribution Box and more!
- 1x National Luna DC-40 Distribution Box
- Built-in 40A DC-DC Multi-Stage Charger
- 1x Dedicated Solar Input
- 1x Auxiliary DC Input (for use with DC sources 11V to 32V)
- 2 x Dual USB QuickCharge Modules (up to 18W Per Port)
- 3 x DC Sockets standard (2 x Cigar, 1 x Hella)
- 2 x 50A Input/Output Ports
- Intelligent Charger Port (charger available separately)
- Multiple Cable-Entry Options
- Mounting Holes
- Battery Voltage Gauge
- 3-Year Limited Warranty
- Ships in 1-3 Business Days
- 30-Day No Stress Returns
- FAST & FREE SHIPPING To The Lower 48 States
National Luna DC 40 Distribution Box Features
- Built-in 40A DC-DC Multi-Stage Charger - Offers efficient charging of your battery through multiple stages to ensure optimal performance.
- Multiple Cable-Entry Options - Provides flexibility in connecting various cables for easy installation.
- Battery Voltage Gauge - Displays the current voltage of your battery for easy monitoring.
- 1x Dedicated Solar Input - Allows for direct connection of solar panels to charge your battery.
- 1x Auxiliary DC Input (11V to 32V) - Supports additional DC sources for charging.
- 2 x Dual USB QuickCharge Modules (up to 18W Per Port) - Provides fast charging for USB devices.
- 3 x DC Sockets Standard (2 x Cigar, 1 x Hella) - Offers multiple outlets for powering DC devices.
- 2 x 50A Input/Output Ports - High-capacity ports for input and output connections.
- Intelligent Charger Port - Allows for the connection of an intelligent charger (sold separately) for.
National Luna DC 40 Distribution Box DC-DC Features
- True 40A Output Current - Delivers a steady 40A output for efficient charging.
- 6-Stage Intelligent Charge Algorithm - Optimizes the charging process for various battery types.
- 12V and 24V Input - Compatible with both 12V and 24V electrical systems.
- Smart-Alternator Compatible - Works seamlessly with smart alternators for efficient charging.
- 40A, 600 MPPT Solar Regulator -Maximizes solar energy harvesting for charging.
- Supports Solar Panels up to 42V - Accommodates a wide range of solar panel voltages.
- AGM, Gel, Wet, Calcium, Lithium Ion Batteries Supported - Versatile compatibility with different battery types.
- Battery Temperature Compensation - Ensures safe charging by adjusting for battery temperature.
- Short-Circuit Protected - Safeguards against short circuits for safety.
- Reverse-polarity Protected - Prevents damage from incorrect cable connections.
- Over-Voltage Protected - Protects against excessive voltage for safety.
- Over-Temperature Protected - Ensures safe operation by monitoring temperature.
- Optional Remote Monitor - Allows for remote monitoring of the system's performance.
National Luna DC 40 Distribution Box Specifications
| Features | Specifications |
|---|---|
| Output Current | 40A |
| Dimensions | 278mm L x 270mm W x 125mm H |
| Battery Compatibility |
12V lead-acid (wet, calcium, gel, AGM) / Lithium Batteries |
Shipping & Returns
FREE SHIPING on orders above $250
Shipping is FREE on most orders with a total value above $250 to customers within the lower 48 United States (Contiguous United States). NOTE: For Front Runner orders, Free Shipping to the lower 48 states ONLY applies to rack kits and orders with a total value above $1,500
However, due to their size and weight, some products may require an LTL truck flat fee shipping charge based on the zone you live in. This flat fee rate will be calculated at checkout, but ONLY for certain brands and products.
Products where the LTL truck flat fee may apply are rooftop tents, roof racks, awnings, bumpers, bed racks, rock sliders, fridges, and drawer systems.
Brands where Flat Fee Shipping based on zones apply:
- Backwoods Adventure Mods
- BA Tents
- Body Armor
- CBI
- Eezi-Awn (only residential addresses)
- Front Runner / Dometic (FREE SHIPPING to the lower 48 states ONLY applies to rack kits and orders with a total value above $1,500)
- Prinsu
- TruckVault (only residential addresses)
- Tuff Stuff
- 23zero
Please refer to the zone map displayed below for your location.
Read more about the terms and conditions that apply in our Shipping Policy
30-Day Easy Returns
As experienced Overlanders, we fully understand that things do not always go according to plan.
That is why we offer you our "No Questions Asked" 30-Day Return Policy, so you can get back on the road for more adventures in a heartbeat.
Read more about the terms and conditions that apply in our Easy Returns Policy
Why Buy From Us
We know you have plenty of options when shopping for Overlanding gear online, so why choose Open Road Overland? Because we’re more than just a store—we’re your trusted partner for every adventure. Here’s why shopping with us is a game-changer:
REASON #1 - TRUST AND SECURITY - SHOP WITH CONFIDENCE
Your security is our top priority. We use encrypted SSL technology and are Level 1 PCI DSS compliant, ensuring your transactions and personal information are always protected. When you shop with us, you can trust that your data is safe and your purchase is secure.
REASON #2 - REAL-WORLD TESTED QUALITY - GEAR YOU CAN RELY ON
We’ve been Overlanding since 1998 — long before it became a buzzword. With 25 years of experience testing gear in the toughest conditions across six continents, we only sell products we would use ourselves. If it’s in our store, it’s been trail-tested and approved.
REASON #3 - EXPERT ADVICE - BECAUSE EXPERIENCE MATTERS
No matter what you drive—a passenger car, pickup truck, or a fully rigged 4x4—we have the knowledge to help you build the perfect setup. Our team has driven nearly everything and can guide you toward the best gear for your specific adventure needs.
REASON #4 - HASSLE-FREE SHOPPING - BECAUSE YOUR TIME MATTERS
-
Fast and FREE Shipping on most orders above $250 to the lower 48 states
-
30-Day Easy Returns. Not happy with your product, we'll take it back no questions asked, and without charging you ANY restocking fee. Ever!
REASON #5 - GREAT CUSTOMER SERVICE - WE'VE GOT YOUR BACK
We don’t just sell gear — we build relationships and pride ourselves on providing the best service, anywhere. Our dedicated Customer Service team is made up of real Overlanders who understand your needs and are ready to help with expert advice, product recommendations, and troubleshooting. Whether you have a question before purchase or need support after, we’re always here to ensure your experience is seamless and stress-free.
REASON #6 - A COMMUNITY THAT CARES - OVERLANDING FOR EVERYONE
Whether you’re a beginner just starting out or a seasoned pro pushing the limits, we believe Overlanding should be accessible to all. That’s why we offer both entry-level products and top-tier gear, ensuring every adventurer finds what they need. More than that, we’re here to help, guide, and support you every step of the way.
