Legrand Plexo Weatherproof Switches: 1 Gang, 2 Gang & Bell Switch Guide + Installation Tips
When installing switches in outdoor or wet areas, standard indoor switches are not safe or durable enough. The Legrand Plexo weatherproof switch range is designed for Singapore’s humid, rainy climate, offering IP55 water protection, impact resistance, and long-term reliability.
This guide covers 1-gang, 2-gang, and bell (push) switches, where to use them, and how to install them safely.
What Is Legrand Plexo?
Legrand Plexo is a weatherproof wiring device system built for:
- Outdoor spaces (balcony, patio, garden)
- Wet zones (wash areas, kitchens, utility rooms)
- Industrial or semi-outdoor environments
Key Features
- IP55 protection – resistant to dust and water jets
- IK08 impact resistance – durable against knocks and wear
- Rated 10A–16A, 250V – suitable for lighting and control circuits
- Surface-mount housing – ideal when concealed wiring is not available
- Designed for indoor & outdoor use
Legrand Plexo 1 Gang Weatherproof Switch
What It Is
A single-control switch for one lighting or electrical point.
Best For
- Outdoor porch lights
- Bathroom or wash area lighting
- Store room / utility room lights
- Single fan or exhaust control
Common Wiring Types
- 1-Way – One switch controls one light
- 2-Way – Two switches control the same light (e.g., staircase)
Legrand Plexo 2 Gang Weatherproof Switch
What It Is
A dual-control switch on one weatherproof plate.
Best For
- Balcony light + fan control
- Outdoor light + water feature
- Kitchen wash area lighting + exhaust fan
- Two circuits in one outdoor location
Benefits
- Saves wall space
- Cleaner installation
- Fewer surface boxes needed
Legrand Plexo Bell Switch (Push Button)
What It Is
A momentary push switch, commonly used for doorbells or access control.
Best For
- Gate or house doorbell
- Intercom trigger
- Electric gate activation
- Alarm or call button
Why Plexo Bell Switch?
- Safe for outdoor gates and entrances
- Weather-sealed button
- Prevents water damage & corrosion
Where to Use Legrand Plexo Switches
Legrand Plexo is recommended for:
- Balconies & patios
- Car porches
- Outdoor walkways
- Industrial kitchens & wash zones
- Gardens & outdoor lighting points
- Wet indoor areas (laundry, washrooms)
How to Install Legrand Plexo Weatherproof Switch (Overview)
⚠ Installation should be done by a licensed electrician in Singapore.
Step-by-Step Overview
1. Turn Off Main Power
Always isolate power at the DB (distribution board) before wiring.
2. Mark & Mount the Surface Box
Legrand Plexo uses a surface-mount housing, ideal when:
- Wiring is exposed
- Concealed wall boxes are unavailable
Fix the box securely with screws.
3. Feed the Cable Through Waterproof Grommet
- Use correct cable entry glands
- Ensure tight sealing to maintain IP55 rating
4. Connect Wires to the Switch Terminal
- Live (L) → Common terminal
- Switched Live → Output terminal
- Earth → Earth terminal (if applicable)
Legrand Plexo supports push-in or screw terminals depending on model .
5. Secure the Mechanism & Seal Cover
- Tighten screws firmly
- Ensure rubber gasket & weather seal is properly seated
- Close cover tightly to maintain waterproofing
1 Gang vs 2 Gang — Which Should You Choose?
| Use Case | Recommended |
|---|---|
| One light or fan | 1 Gang |
| Two separate controls | 2 Gang |
| Outdoor light + water pump | 2 Gang |
| Simple bell or gate trigger | Bell Switch |
Why Choose Legrand Plexo for Outdoor Switches?
✔ Designed for tropical weather
✔ Water-resistant & dust-protected (IP55)
✔ Durable impact-resistant housing
✔ Trusted Legrand quality
✔ Suitable for residential & commercial use
✔ Long service life with low maintenance