Description
Need a simple, reliable way to keep a standard wall telephone working outdoors or in tough spots? The GAI-Tronics 255-003 Weatherproof Telephone Enclosure gives inexpensive 2500 series phones the protection they need to last for years. Its non-metallic, corrosion-proof design and NEMA 4X rating (with the door closed and latched) shield the phone from weather, dust, and corrosive conditions while keeping it easy to access.
This gray enclosure is built for real-world places like poolside areas, docks, baseball dugouts, shipboard locations, garden centers, and any site where a weatherproof telephone is required. Facilities managers, IT directors, and business owners get a practical, cost-effective solution that extends the life of everyday wall phones without moving to a fully rugged unit.
Key Features
- Non-metallic, corrosion-proof engineered plastic enclosure – resists weather and corrosive environments so your phone lasts longer outdoors or in industrial settings.
- Latching door – provides secure access while maintaining the NEMA 4X seal when closed and latched.
- NEMA 4X weather rating (cUL/UL Type 4X listed) with door closed and latched – protects against water, dust, and corrosion for reliable performance in demanding locations.
- Wall-mount RJ11 jack designed for standard 2500 series telephones – makes connection fast and straightforward for common wall phones.
- Surface-mount and pole-mount capability – flexible installation options for walls or poles using the included mounting feet.
- Blank panel kit available for utility usage – allows installation of other devices when a phone is not needed.
- RJ45 conversion available – supports future connectivity needs.
- Options for spring door closure, keylock door, or hasp-lock hardware – customize for your site’s access and security requirements.
Technical Specifications
| Specification | Detail |
|---|---|
| Catalog Number | 255-003 |
| Color | Gray |
| Material | Non-metallic, engineered plastic |
| Weather Rating | NEMA 4X / Type 4X (cUL/UL Listed) with door closed and latched |
| Outside Dimensions | 10.9 in W × 14.6 in H × 10.5 in D |
| Inside Dimensions | 7.75 in W × 11.5 in H × 8.0 in D |
| Weight | 8.2 lb |
| Mounting | Surface-Mount & Pole-Mount (four 0.43 in diameter mounting holes; mounting feet included) |
| Telephone Connection | Wall-mount RJ11 jack (for standard 2500 series) |
| Conduit Entry | Customer’s discretion (bottom entry recommended; Myers ST or STG series hubs recommended) |
| UPC | 850025795036 |
FAQ
What phones work with the 255-003?
It is designed for connection of standard 2500 series wall telephones via the built-in wall-mount RJ11 jack.
Is it truly weatherproof?
Yes. It carries a NEMA 4X / Type 4X rating (cUL/UL listed) when the door is closed and latched.
Can it be mounted on a pole?
Yes. It supports both surface-mount and pole-mount installation. Mounting feet with clearance holes are included.
What colors and options are available?
The base 255-003 is gray. Other colors (yellow, orange, red) and options such as spring door closure, keylock door, or hasp-lock hardware are available under related model numbers.
Can I use it for something other than a telephone?
A blank panel kit is available for utility usage to install peripheral devices.

