- Stock 20
Weatherproof junction box · 1-gang deep box 3 x 1/2 in threaded entries die-cast aluminium · RAB Design DDB23P
1-gang deep weatherproof junction box with 3 x 1/2 in threaded conduit entries in die-cast aluminium. Commonly used for outdoor device and splice box installations where a compact, gasketed cast box is required.
What this product is for
The DDB23P is a 1-gang deep weatherproof junction box for protecting electrical connections in outdoor or damp-location installations. It is used where a cast aluminium box with threaded conduit entries is preferred for branch wiring, device mounting, or splice access.
Use for
- Outdoor receptacle, switch, sensor, and lighting box installations
- Surface-mounted conduit runs using 1/2 in threaded entries
- Commercial, industrial, and residential exterior wiring
- Retrofit or new work where a compact deep box is needed
Avoid for
- Applications requiring larger box fill than a 1-gang deep box can provide
- Installations needing 3/4 in hubs unless the matching DDB33P version is specified
- Corrosive environments unless the full assembly, cover, hubs, and installation method are suitable for the site conditions
Best for
Best for electricians needing a weatherproof cast box with 3 conduit entries for exterior wall-mounted devices, junctions, or lighting connections. The removable galvanized mounting tabs and included plugs help speed up common field installations.
Installed in
- Exterior walls
- Service areas
- Commercial facades
- Industrial utility spaces
- Outdoor lighting and control points
Why this product exists
This box provides a compact, weatherproof enclosure for exposed wiring connections where standard indoor boxes are not suitable. A deep cast body helps with conductor space and device wiring while threaded entries support rigid, compatible conduit connections.
Compared with similar products
Compared with standard indoor steel device boxes, this model is intended for weatherproof surface installations. Compared with shallow weatherproof boxes, the deep body gives additional wiring room. Compared with larger junction boxes, it suits smaller device and branch connection points with 3 entry locations.
Specifications
- Manufacturer: RAB Design
- Manufacturer part number: DDB23P
- Product type: Weatherproof junction box
- Gang: 1-gang
- Box style: Deep rectangular box
- Material: Die-cast aluminium
- Finish: Silver grey powder coat
- Conduit entries: 3
- Entry size: 1/2 in NPT threaded
- Dimensions: approximately 4-5/8 in L x 2-13/16 in W x 2-3/4 in D (approximately 117 x 71 x 70 mm)
- Includes: 2 threaded plugs, 2 galvanized steel mounting tabs, 1 ground screw, and screws
- Certification: cULus
Typical guidance: a deep weatherproof box is commonly chosen when extra wiring space is needed compared with shallow device boxes. Actual box fill and suitability depend on conductor count, device size, fittings, and local electrical code.
- MaterialDie-cast aluminium
- Gang1-gang
- Dimensionsapproximately 4-5/8 in L x 2-13/16 in W x 2-3/4 in D (approximately 117 x 7
- ApprovalscULus
- FinishSilver grey powder coat
- Included2 threaded plugs, 2 galvanized steel mounting tabs, 1 ground screw, and scr
- Entry Size1/2 in NPT threaded
- Conduit Entries3
- BrandsRAB Design
- Stock in Elmira2
- Stock in Flesherton3
Aptico Supply Delivery
Fast Electrical Supply Delivery Across Ontario
Local delivery routes, pickup options, and contractor-focused service from our Elmira and Flesherton locations.

Delivery Built Around Electrical Contractors
Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.
Free Daily Delivery
Free daily delivery is available for larger contractor accounts.
- Order by 9:00 AM for morning delivery
- Order by 2:00 PM for afternoon delivery
- Available in qualifying local delivery areas
Free Weekly Delivery
Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
- Order by 11:00 AM on the route day
Pickup Options
Pickup is available from our Ontario locations for customers who prefer to collect their order directly.
- Elmira pickup available
- Flesherton pickup available
- Call ahead for large or special-order items
Local Delivery Areas
See our local delivery coverage below. Delivery charges may apply outside regular route areas or for oversized items.
Delivery Questions
Do you offer free delivery?
Yes, free delivery is available for qualifying contractor accounts and selected local delivery routes.
Can I pick up my order?
Yes, pickup is available from our Elmira and Flesherton locations.
Do delivery charges apply?
Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
Can you deliver to jobsites?
Yes, jobsite delivery may be available depending on the order size, location, and delivery schedule.
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