Transco ADP77 Adaptable Junction Box 77×77×54mm IP56 Weatherproof

Description

Weatherproof Junction Box. Adaptable. Ready for the Tough Stuff.

The Transco ADP77 is an IP56 rated adaptable weatherproof electrical junction box in grey PVC — the compact, versatile enclosure for housing electrical connections, terminations, and conduit fittings in outdoor, wet area, and exposed locations. At 77 x 77 x 54mm, it provides a clean, protected housing for electrical work where a standard junction box simply isn't rated for the environment. Sold individually.

• Transco — IP56 rated adaptable weatherproof junction box
• Grey PVC construction
• IP56 ingress protection — dust protected, protected against powerful water jets
• Dimensions: 77 mm x 77 mm x 54 mm deep
• Conduit entry knockout: 6.6 mm
• Adaptable — suits conduit fittings and electrical terminations
• Suitable for outdoor, wet area, and exposed installations
• Also available in 108 x 108 x 76mm (ADP108) and 211 x 108 x 81mm (ADP208)
• Compliant with Australian conduit fitting standards

Order online now for fast dispatch Australia-wide.

Where the ADP77 Fits Across Electrical Installations

An adaptable box is one of the most versatile components in an electrical installation — it provides a protected, accessible enclosure for cable joints, conduit terminations, and junction points that need to be weatherproof but remain accessible for inspection or modification. The ADP77's IP56 rating means it is protected against dust ingress and powerful water jets from any direction, making it suitable for outdoor walls, undercover areas exposed to weather, caravan and RV installations, construction sites, and any other location where a standard plastic junction box is not adequately rated for the environment.

At 77 x 77 x 54mm, the ADP77 is the compact option in the Transco adaptable box range — the right size for single cable joints, small termination points, and conduit end fittings where a larger enclosure would be oversized for the application. The 6.6mm conduit entry knockout accommodates standard conduit fittings. The grey PVC construction is UV-stable and impact-resistant, suited to long-term outdoor exposure without degrading or becoming brittle.

The ADP77 is the smallest of three sizes in the Transco adaptable box range. The ADP108 (108 x 108 x 76mm) and ADP208 (211 x 108 x 81mm) are available for larger termination requirements or where multiple conduit entries are needed. All three share the same IP56 rating, grey PVC construction, and adaptable box format — making them straightforward to specify across a consistent installation.

Q: What is the IP56 rating of the Transco ADP77 adaptable box?
A: IP56 means the ADP77 is dust protected (first digit 5 — no harmful dust ingress) and protected against powerful water jets from any direction (second digit 6). This makes it suitable for outdoor, wet area, and exposed installations where standard junction boxes are not adequately rated.

Q: What size conduit fittings does the Transco ADP77 accept?
A: The ADP77 has a conduit entry knockout of 6.6mm, suitable for standard conduit fittings used in Australian electrical installations. The knockout can be removed and fitted with a conduit connector as required.

Q: What are the other sizes available in the Transco adaptable box range?
A: The Transco adaptable box range includes three sizes — ADP77 (77 x 77 x 54mm), ADP108 (108 x 108 x 76mm), and ADP208 (211 x 108 x 81mm). All three share the same IP56 rating and grey PVC construction.