

High-Power Remote Switches
SWITNEX 433 MHz Long-Range RF Switch, AC 220–240V 30A 1-Channel with 3 m External Antenna
Anti-interference 30A remote switch for pumps, engines and garage doors — the 3 m external antenna lets the receiver sit inside a metal cabinet.
- Factory direct: in-house production and QC, competitive pricing for wholesale and projects.
- Pre-paired kits: kits ship already coded — wire up and go; extra remotes can be added any time.
- OEM / ODM: private label, custom coding, frequency, housing colour and packaging.
Key features
- 30 A heavy-duty relay — Switches pumps, motors, heaters and other high-power equipment reliably.
- 3 m external antenna — Install the receiver in a steel control box and route the antenna outside.
- 100–300 m range — Long-distance control in open areas with strong anti-interference.
- Three working modes — Switch between momentary, toggle and latched operation in seconds — no extra hardware or app needed.
Specifications
| RF frequency | 433 MHz |
| Receiving sensitivity | > -97 dBm |
| Input voltage | AC 220–240 V |
| Relay | 30 A |
| Working modes | Momentary / Toggle / Latched |
| Range | 100–300 m open area |
Installation
Receivers are compact enough to fit an existing wall box, sit next to the fixture or mount inside the distribution box. Every kit ships with an English manual and wiring diagram. Stuck? Send a photo of your wiring on WhatsApp and our engineers will confirm it for you.
Step-by-step articles and videos are in our Installation Guides.
Shipping & support
- Worldwide shipping with tracking number on every order.
- One exchange within 7 days of delivery (original packaging); refunds for faulty items.
- Wholesale, project and OEM orders — use the inquiry form or WhatsApp.


