Newmar BX-3 Junction Box
Newmar BX-3 Junction Box — Product description
Discover the reliability of the Newmar BX-3 junction box, a go-to solution for boat owners, RV enthusiasts, and off-road adventurers who need dependable electrical connections in harsh environments. Designed specifically for below-deck installations, this junction box keeps your wiring secure and protected from moisture, dust, and vibrations that come with marine or mobile lifestyles.
Built for Tough Conditions
Crafted from rugged cast aluminum with a durable white enamel finish, the BX-3 stands up to saltwater spray, engine heat, and constant movement without corroding or cracking. Its IP54 rating means it seals out water splashes and particles effectively, making it ideal for engine compartments, bilges, or under-chassis setups where exposure is inevitable.
What sets it apart is the smart design for effortless wiring. Multiple grommeted cable entries allow cables to enter without strain, reducing wear and tear over time. Inside, you'll find two high-quality connector strips that use compression fittings—no soldering or loose terminals needed. Just strip your wires, insert, and squeeze tight for a rock-solid connection that handles up to 10 amps per position reliably.
Versatile for Marine, RV, and More
Whether you're wiring navigation lights on a fishing boat, powering accessories in an RV, or setting up custom electricals on an ATV, the BX-3 handles it all. Its compact size—4.7 x 3.7 x 1.3 inches—fits into tight spaces without sacrificing capacity. With 22 total positions (two strips of 11 each), it's perfect for consolidating multiple circuits into one organized hub, minimizing clutter and troubleshooting headaches.
Users love how it simplifies expansions too. Add LED strips, pumps, or sensors without starting from scratch; the 14-gauge wire compatibility supports most common setups in recreational vehicles and watercraft.
Technical Specifications
| Specification | BX-3 Details |
|---|---|
| Number of Connector Strips | 2 |
| Positions per Strip | 11 |
| Max Wire Gauge | 14 AWG |
| Max Amps per Position | 10A |
| Cable Entries | 2 (grommeted for up to 0.59" diameter) |
| Dimensions (Inches) | 4.7 x 3.7 x 1.3 |
| Dimensions (Centimeters) | 11.9 x 9.4 x 3.3 |
| IP Rating | IP54 (splash and dust resistant) |
| Material | Cast aluminum with white enamel finish |
Installation Made Simple
Getting the BX-3 up and running takes minutes. Mount it securely with the built-in flanges, route your cables through the grommets, and connect using the compression strips. Pro tip: Label your wires before bundling to make future maintenance a breeze. Always ensure power is off during install, and use heat-shrink tubing on exposed ends for extra protection in humid spots. It's compatible with standard 12V or 24V systems common in boats and RVs.
For best results, pair it with marine-grade wire to match its durability—think tinned copper to resist corrosion.
Why It Outshines Basic Boxes
Unlike flimsy plastic enclosures that crack under UV or impact, the BX-3's metal construction and compression tech deliver vibration-proof connections that last seasons. No more intermittent shorts from loose wires or water ingress. It's a small investment that prevents costly electrical failures on the water or road.
Frequently Asked Questions
What is the IP rating of the Newmar BX-3 junction box?
The BX-3 has an IP54 rating, providing solid protection against water splashes and dust, perfect for below-deck marine or RV use.
How many wires can the Newmar BX-3 handle?
It features two connector strips with 11 positions each, totaling 22 secure connections for up to 14-gauge wire.
Does the BX-3 require soldering for connections?
No, it uses reliable compression fittings on the connector strips—no terminals, soldering, or crimping tools needed.
What size cables fit through the BX-3 entries?
The two grommeted entries accommodate cables up to 0.59 inches in diameter, with easy access for routing.
Is the Newmar BX-3 suitable for boats?
Absolutely—its cast aluminum build, IP54 seal, and corrosion-resistant finish make it ideal for marine environments like engine rooms or bilges.
How does the BX-3 compare to the BX-2 model?
The BX-3 offers double the connector strips (2 vs. 1), higher amp capacity (10A vs. 6A per position), and larger dimensions for more wiring capacity.
Can I use the BX-3 in an RV?
Yes, it's excellent for RV electrical panels, consolidating lights, pumps, and accessories in a compact, protected enclosure.
NewMar BX3 Attributes
BX Series
- Provides for secure, protected below-deck wiring connections, IP rating 54
- Rugged cast aluminum box with white enamel finish
- Easy wiring access through multiple grommeted cable entries
- Supplied with high quality connector strips
- Secure wires w/compression fittings ? no terminals required.
Specifications
| Model | BX-2 | BX-3 |
| Number of Connector Strips | 1 | 2 |
| Positions per Strip | 12 | 11 |
| Max Wire Gauge | 16 | 14 |
| Max amps (per Position) | 6 | 10 |
| Cable Entries | 8 | 2 |
| Max Cable Diameter | .37" | .59" |
| Box Sizes - Inches | 4.4" x 2.4" x 1.2" | 4.7" x 3.7" x 1.3" |
| Box Sizes - Centimeters | 11.2 x 6.1 x 3.1 | 11.9 x 9.4 x 3.3 |
"What can be more fun and rewarding than boating on the open waters? This is an excellent solution for your boating needs. This product is great for use in all marine applications. It will satisfy the needs of both pleasure boat enthusiasts and ambitious yacht owners. Get this excellent product for your vessel and prepare to embark on a thrilling adventure."
SKU: NVN-1001158
MPN: BX-3
UPC:
Technical specifications
| Brand | NewMar |
| Model | Newmar BX-3 Junction Box |
| SKU / MFR# | 1001158 |
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