S1WP Neptune Series IP66 Weatherproof Flush 1 Gang Switch

Description

Weatherproof Switching Where It Matters Most.

The Transco Neptune S1WP is a 1 gang IP66 rated slim weatherproof flush light switch — built for outdoor, wet area, and exposed installations where a standard switch simply isn't rated for the environment. Rated at 10A and 240V AC, it uses Transco's patented membrane separation technology to achieve IP66 ingress protection in a slimline flush-mount profile. Electrical white finish.

• Transco Neptune series — 1 gang IP66 slim weatherproof flush switch
• Electrical white impact-resistant polycarbonate construction
• IP66 ingress protection rating
• Patented membrane separation technology
• Rated 10A at 240V AC, single phase, 50Hz
• 3-pin configuration — active, neutral, earth (flat earth pin)
• Copper ferrule cable connector x3
• Accommodates cable up to 2.5mm x 3
• Dimensions: W72 mm x L117 mm x D20 mm
• Fixing centres: 84 mm
• Vertical wall mounting
• Suits flush and surface mount installations
• Fits all general mounting brackets and flanges on the market
• UV stabilised polycarbonate
• Compliant with AS/NZS 3100, AS/NZS 3112 and AS/NZS 3133

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Why the Transco Neptune S1WP Is the Go-To Weatherproof Switch for Australian Installations

IP66 is a significant step above the ingress protection level of standard domestic switches — it means the S1WP is protected against powerful water jets from any direction, not just splashing or light moisture. That makes it the right specification for outdoor walls, alfresco areas, balconies, commercial kitchens, wet rooms, bathrooms, and any other location where water exposure is a genuine risk. The slimline flush-mount profile keeps the installation looking clean and intentional rather than industrial, with a depth of just 20mm sitting neatly against the wall surface.

Transco's patented membrane separation technology is what enables the IP66 rating in a slimline format — the switch rocker is sealed via a flexible membrane that maintains the ingress protection without requiring a hinged lid or bulky enclosure. The UV-stabilised polycarbonate body and cover handle long-term outdoor exposure without yellowing or degrading, making the S1WP a genuinely durable long-term installation rather than a compromise solution.

The S1WP fits all general flush mounting brackets and surface mounting flanges available on the Australian market, giving full flexibility across wall types and installation methods. It is the 1 gang variant in the Neptune weatherproof switch range — the same series is available in 2 gang (S2WP) and 4 gang (S4WP) configurations for multi-circuit weatherproof switching from the one plate location.

Q: What does IP66 mean for the Transco Neptune S1WP switch?
A: IP66 means the S1WP is protected against dust ingress (first digit 6) and powerful water jets from any direction (second digit 6). This makes it suitable for outdoor installations, wet areas, and locations exposed to hosing or heavy rain, well beyond the protection level of a standard domestic light switch.

Q: Does the Transco Neptune S1WP require a protective lid or cover to achieve IP66?
A: No. The S1WP achieves its IP66 rating without a lid, using Transco's patented membrane separation technology to seal the switch rocker. A cover can be added for additional protection or aesthetic reasons but is not required for the IP66 rating to be maintained.

Q: Is the Transco Neptune S1WP suitable for outdoor and bathroom installations?
A: Yes. The IP66 rating makes the S1WP suitable for outdoor walls, alfresco areas, balconies, bathrooms, commercial kitchens, and other wet or exposed locations where standard domestic switches are not rated for the environment.