Hộp nối WAGO 221 (Junction Box)

WAGO 221 Junction Box

Very simple junction box for WAGO 221 connectors.
I designed this for my weather station to easily supply power to and swap different sensors.

---

Features

• Designed for up to 9 × WAGO 221 (5-way) connectors

• 9 × M12 × 1.5 threads and bores for PG7 cable glands

• 4 mounting holes compatible with two 3/4" pipe clamps

• Compact and modular design for easy installation and maintenance

---

Use Case

Ideal for weather stations or other outdoor projects where multiple sensors require clean, flexible, and serviceable wiring.

---

Printed Parts

1. Case

2. Lid

3. Clamps   (Attention: pause the print and insert the M3 nuts)

---

Hardware

1. 4 × 3 mm × 20 mm wood screws

2. 9 × PG7 cable glands

3. 4 × M3 × 10 countersunk screws

4. 4 × M3 nuts

---

Additonal/Optional 

1. Laser-cut or 3D print a TPU seal for the lid

2. Add sealing washers for the PG7 cable glands

I currently use the box without seals, as it is mounted in a way that allows water to drain out of the enclosure without interfering with the cables.

Regarding frequent questions:

The parts were printed on ABS slurry.

That’s why the surface of the parts is discolored.