WAGO 221 Connectors Outside for Waterproof 

For electricians working on outdoor or high-humidity environments, waterproof electrical connections is crucial for safety and durability. A common question is whether WAGO 221 Series connectors (or similar models like 222, 2273, 2773, and 773 Series) are waterproof ? 

100% Confirmed : WAGO Connectors Are NOT Waterproof

It's important to clarify—none of the WAGO 221, 222, 2273, 2773, or 773 Series connectors have a waterproof function. They are designed for dry environments and must be protected from moisture, rain, and direct water exposure. If these connectors are used unprotected outdoors, there is a high risk of short circuits, corrosion, or electrical failure over time.

How to Waterproof WAGO 221 Connectors?

While WAGO connectors are not inherently waterproof, there are effective ways to make them safe for outdoor use. Here are two reliable methods electricians can use:

1. Use WAGO GELBOX

WAGO offers a GELBOX, a compact enclosure filled with special insulating gel. When you place a WAGO 221 connector inside and close the box, the gel surrounds the connection, sealing it off from water and dust. The GELBOX is tested according to IPX8 standards, meaning it can protect against prolonged water immersion.

💡 Advantages:

✅ Quick and easy to install

✅ No need for additional sealing materials

✅ Works with multiple WAGO connector series

2. Use an IP68 Waterproof Junction Box

Another effective solution is using a fully sealed IP68-rated waterproof junction box. The process is simple:

1. Place the WAGO 221 connectors inside the waterproof box.
2. Ensure the cable entry points are properly sealed using cable glands or rubber gaskets.
3. Secure the box tightly to prevent any water from entering.

💡 Advantages:

✅ Provides long-term protection against water, dust, and extreme weather

✅ Suitable for underground or underwater installations

✅ Available in different sizes for various connection types

Conclusion

Although WAGO connectors are NOT waterproof, electricians can use the WAGO GELBOX or an IP68 waterproof box to protect connections from moisture and water damage. Choosing the right waterproofing method ensures the safety, reliability, and longevity of electrical installations in outdoor or wet environments.

For professional-grade outdoor electrical work, always ensure proper waterproofing—never use WAGO connectors unprotected in wet conditions!