High-Power Remote Switches
SWITNEX 433 MHz Remote Control Switch 40A DC 12V with External Antenna
A 40A, 12 V DC remote switch for vehicles, winches, pumps and high-current DC equipment, with an external antenna for better reception.
- 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
- 40 A relay — Handles high-current DC loads with long-term stability.
- External antenna — Stretch the antenna out of the enclosure for stronger reception (> -105 dBm).
- Three working modes — Switch between momentary, toggle and latched operation in seconds — no extra hardware or app needed.
- Easy pairing — Learn or clear transmitters with one button; each receiver stores up to about 20 remotes so the whole team can share control.
Specifications
| RF frequency | 433 MHz |
| Receiving sensitivity | > -105 dBm |
| Input voltage | DC 12 V |
| Relay | 40 A |
| Working modes | Momentary / Toggle / Latched |
| Range | About 50 m, no obstacles |
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.
