IP68 Waterproof Wire Nuts Manufacturer (UL Listed & Direct Burial)
Secure your connections against moisture, corrosion, and the elements with Tonful Electric’s premium waterproof wire nuts. Engineered for extreme environments, our silicone-filled connectors provide a reliable IP68 seal for direct burial, landscape lighting, and irrigation systems.
As a trusted electrical components manufacturer with over 15 years of experience, we supply wholesalers and contractors globally with UL Listed (486D standard) connectors that ensure safety and longevity. Whether you need standard models or custom OEM solutions, Tonful is your partner for high-performance electrical splicing.
Certified By
Our Range of UL Listed Waterproof Wire Connectors
Why Source Waterproof Connectors from Tonful Electric?
We don’t just sell connectors; we engineer confidence. For over 15 years, Tonful Electric has been a leader in connection technology, focusing on what matters in the real world.
Factory-Direct Pricing & OEM Support
Eliminate the middleman. We offer competitive factory pricing and full OEM/ODM branding options for bulk orders.
Premium Silicone Sealant:
Our connectors are pre-filled with high-viscosity silicone sealant that never hardens, ensuring a permanent waterproof barrier ranging from -45°F to 400°F.
Certified for Global Compliance:
Fully UL Listed and CSA Certified for damp, wet, and direct burial locations (compliant with NEC standards).
100% Quality Tested
Produced in our ISO 9001:2015 facility with rigorous torque and submersion testing.
How to Install Waterproof Wire Connectors (Step-by-Step)
01
Strip the Wires
Strip wires to the recommended length (approx. 1/2 inch or 12mm). Ensure strands are straight.
02
Align & Insert
Place stripped conductors together and insert them into the silicone-filled cap. Do not pre-twist wires (unless specified).
03
Twist to Tighten
Turn the connector clockwise firmly until the internal spring grips the wires and you feel resistance. The silicone sealant may squeeze out slightly—this indicates a full seal.
04
Verify Connection
Give each wire a gentle tug to ensure they are securely locked. Your connection is now IP68 waterproof and ready for burial.
Ideal Applications for Tonful Waterproof Wire Nuts
landscape lighting
Irrigation Systems
Pool & Spa
Automotive
Underground Feeder (UF) Cable Splicing
Outdoor Signage & Luminaries
Get Your Free Sample!
We provide samples for free, you just need to tell us what you need
Specification Chart: Waterproof Wire Connectors
|
product name
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JW1010
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JW1011
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JW1020
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JW1030
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JW1040
|
|
Max. Voltage
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600V max. building wire (1000V max. signs or luminaries)
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600V max. building wire (1000V max. signs or luminaries)
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600V (1,000V in fixtures and signs)
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600V (1,000V in fixtures and signs)
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600V (1,000V in fixtures and signs)
|
|
Wire Range:
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Min #22/Max #12(AWG)
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Min #24/Max #12 (AWG)
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Min #22/Max #12
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Min #22/Max #8
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Min #22/Max #6
|
|
Connector Size:
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Φ10mmx23.8mm
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Φ12mm x 30mm
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Φ14mm x 24mm
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Φ17.2mm x 34.5mm
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Φ20.6mm x 41.2mm
|
|
Rated temperature
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105°C (221°F)
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105°C (221°F)
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105°C (221°F)
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105°C (221°F)
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105°C (221°F)
|
|
Silicone Sealant:
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-45°F to 400°F
|
-45°F to 400°F
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-45°F to 400°F
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-45°F to 400°F
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-45°F to 400°F
|
|
Flammability rating
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UL94V-0
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UL94V-0
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UL94V-0
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UL94V-0
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UL94V-0
|
|
Stripping length
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10-12mm
|
10-12mm
|
10-12mm
|
10-12mm
|
10-12mm
|
|
weight
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1.99g
|
2.49g
|
2.75g
|
4.63g
|
6.58g
|
|
packaging
|
500Pcs/Bag
|
500Pcs/Bag
|
500Pcs/Bag
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500Pcs/Bag
|
500Pcs/Bag
|
|
Instructions
|
Plug-and-tight installation
|
Plug-and-tight installation
|
Plug-and-tight installation
|
Plug-and-tight installation
|
Plug-and-tight installation
|
Your Partner in Electrical Solutions
We offer more than just components; we provide comprehensive support to ensure your project’s success.
Service Consultation
Whether your Waterproof Wire Nut requirements are straightforward or complex, our team provides expert advice and technical consultation. For more intricate projects, we offer in-depth engineering support to ensure optimal product selection and application, guaranteeing safety and efficiency in your electrical systems.
Product Recommendations
Unsure which Waterproof Wire Nut suits your system? Our specialists provide free, customized recommendations based on your specific operational and environmental requirements, ensuring you get the perfect fit for your electrical protection needs.
Installation Support
Need help with installation? Our technical team is available to answer your questions or provide hands-on support. For larger projects, we can even dispatch an engineer to your site for on-the-ground assistance, ensuring your RCCBs are installed correctly and function seamlessly within your electrical network.
Logistics Support
If you lack a reliable freight forwarder, we can arrange transportation from our factory to your project site at no extra cost. Our logistics team ensures timely and secure delivery to keep your project on schedule, minimizing downtime and delays.
Tonful Workshop
Frequently Asked Questions (FAQ)
What is a waterproof wire nut?
A waterproof wire nut is a specialized electrical connector designed to protect wire splices from moisture, corrosion, and water ingress. Unlike standard twist-on connectors, it features a durable outer shell pre-filled with non-hardening silicone sealant. When wires are inserted and twisted, the sealant completely surrounds the conductors, creating a secure, IP68-rated seal that is safe for damp, wet, and direct burial applications.
Can I use these for direct burial underground?
Yes. All our waterproof models shown here are UL Listed for direct burial applications, making them code-compliant for underground splices.
What's the difference between "water-resistant" and "waterproof"?
“Water-resistant” might handle a splash, but “waterproof” means it can be fully submerged. Our IP68-rated connectors are designed for continuous immersion, providing the highest level of protection.
Are Tonful waterproof wire nuts reusable?
To guarantee a perfect waterproof seal, our gel-filled connectors are designed for a single, permanent installation. Reusing them can compromise the integrity of the silicone sealant.
Can I use these with both solid and stranded wire?
Yes, our wire nuts are designed with a flexible internal spring that securely grips both solid and stranded copper conductors within the specified wire range.
What makes Tonful wire nuts truly waterproof (IP68)?
Our connectors use a three-point defense: a durable outer shell, precision-engineered threads, and a pre-filled silicone sealant. This combination displaces air and moisture, creating a seal rated IP68 for continuous submersion.
Do you offer bulk discounts or OEM packaging for distributors?
Tonful Electric specializes in B2B partnerships. We provide tiered volume discounts and can customize packaging (bags, jars, cartons) with your branding for wholesale orders. Contact our sales team for a custom proposal.
Ready to Secure Your Connections? Get Your Free Sample.
Experience the Tonful difference for yourself. Tell us about your project, and we’ll provide an instant quote and a free sample pack of our industry-leading waterproof wire nuts.
