Protect Solar Connections with Heyco Liquid Tight PV Connector Caps

In solar installations, even the smallest exposed component can become a source of contamination, moisture ingress, or performance issues. Unsecured photovoltaic (PV) connectors are particularly vulnerable during transportation, storage, and installation. That’s where Heyco Liquid Tight PV Connector Caps provide a simple yet highly effective solution.
Why Protect Unused PV Connectors?
Solar systems are designed to operate in harsh outdoor environments. Before final installation, exposed PV connectors can be subjected to dust, dirt, insects, moisture, and other environmental contaminants. These contaminants can compromise connector performance, increase maintenance requirements, and potentially affect system reliability.
Using a dedicated connector cap helps ensure that PV connectors remain clean, protected, and ready for installation when needed.
The Heyco Liquid Tight PV Connector Cap Advantage
Heyco Liquid Tight PV Connector Caps are designed as an all-in-one solution for protecting exposed ends of unsecured 4 mm PV connectors. Their user-friendly design allows for quick installation while delivering reliable environmental protection.
Key Features and Benefits
Universal Compatibility
* Fits both male and female unsecured 4 mm PV connectors.
* Compatible with all major 4 mm PV connector styles on the market.
Quick and Secure Installation
* Simple push-in design with a quarter-turn locking feature.
* Helps keep the cap securely in place until final installation.
Superior Environmental Protection
* Protects unused connectors from liquids, insects, dust, and particulate contamination.
* Maintains connector cleanliness during storage, transportation, and installation.
Industry-Leading Protection Ratings
* Meets a minimum IPX4 rating on all 4 mm PV connectors currently available.
* Achieves IP68 protection when used with the popular Staubli MC4 connector, offering exceptional resistance to water and environmental exposure.
Built for Demanding Outdoor Conditions
Solar installations face extreme temperatures and prolonged UV exposure. Heyco Liquid Tight PV Connector Caps are manufactured from heat-stable, UV-rated Nylon 6/6, making them well-suited for long-term outdoor use.

| PART NO. | DESCRIPTION | PART DIMENSIONS | |||||
|---|---|---|---|---|---|---|---|
| in | mm | in | mm | in | mm | ||
| S6254 | LTPVCC YELLOW 100/BAG | 0.85 | 21,6 | 0.80 | 20,3 | 1.43 | 36,3 |
| S6255 | LTPVCC YELLOW BULK | ||||||
| S6256 | LTPVCC WHITE 100/BAG | ||||||
| S6257 | LTPVCC WHITE BULK | ||||||
Material Specifications
* Material: Heat-Stable, UV-Rated Nylon 6/6
* Colors Available: Yellow and White
* Operating Temperature Range: -40°F to 221°F (-40°C to 105°C)
These durable materials help ensure reliable performance across a wide range of environmental conditions.
Protecting PV connectors during every stage of a solar project is a simple step that can help prevent contamination-related issues and improve installation efficiency. Heyco Liquid Tight PV Connector Caps offer a fast, secure, and cost-effective solution for safeguarding exposed solar connectors until they are ready for final connection.
Download the spec sheet to explore available sizes and configurations.
Contact Cords Canada team today to learn more about Heyco Liquid Tight PV Connector Caps and find the right protection solution for your application.