Rain Bird DBRY

Rain Bird WC20 direct-bury wire connector

This is the current Rain Bird WC20 connector, previously sold as DBRY20. Rain Bird's technical bulletin confirms that the 2018 change was a rebrand only: DBRY20 and WC20 are the same product and are directly interchangeable.

The WC20 uses a twist-on wire nut inside a silicone-filled direct-bury tube. It is intended for reliable controller, valve-box, soil-moisture-sensor and two-wire decoder connections.

Specifications

• For solid or stranded wire combinations from 22 to 8 AWG, approximately 0.33 to 8.37 mm²
• Connection range: 24 to 600 V AC
• UL 486D certified for direct burial
• Maximum connector temperature: 105°C
• Silicone sealant temperature range: -43°C to 204°C
• Approximate size: 9.37 cm high × 3.81 cm wide × 3.02 cm deep (3 11/16 × 1 1/2 × 1 3/16 in)
• Available here as a single connector, bag of 20 or box of 100

Installation

1. Turn off the power and follow applicable electrical regulations.
2. Strip 15.9 mm (5/8 in) of insulation. Pre-twisting is not required; hold the wire ends even and align any loose strands.
3. Push the wires firmly into the twist-on connector and screw it clockwise until tight.
4. Insert the completed splice to the bottom of the silicone-filled tube.
5. Place the wires in the channels and close the lid until the latch is secure.

Selection guidance: Choose WC20 where you need a direct-bury connector with strain relief and a wide conductor range. For compact self-stripping connections using up to three smaller insulated copper wires, see the Rain Bird DBM10. For stripped copper conductors below 30 V, see the Rain Bird KING connector.

See the supporting gallery images for Rain Bird’s WC20 splice instructions and common wire-combination examples. The WC20/DBRY20 rebrand is explained above and in the gallery. The full technical sheet below remains available.

Official Rain Bird WC20 product information
Rain Bird WC20 technical specification and installation instructions (PDF)