230 V power supply
12 V from a wall socket. The TRB140 peaks at 3.9 W, well within the 18 W rating.
€13.95 incl. VATBuy now
TRB gateways · power guide
Teltonika TRB140 power supply and cables
The Teltonika TRB140 is a 4G gateway with a 4-pin power socket. Here is what fits it, what it draws, and which cable suits your install.
Screw terminal cable
Bare ends for 12, 24 or 30 V DC, with the I/O wires included.
€11.95 incl. VATBuy now
About the Teltonika TRB140
The TRB140 is a gateway rather than a full router: one Gigabit Ethernet port, a micro USB port, one SIM and a Cat 4 modem, with no Wi-Fi. It is one of the smallest boxes Teltonika makes, at 74.5 x 25 x 64.4 mm.
People use it to give one machine, a meter or a controller its own 4G connection, often tucked inside the equipment it serves.
Teltonika TRB140 at a glance
- Mobile
- 4G LTE Cat 4
- Ethernet
- 1 x Gigabit RJ45
- Wi-Fi
- None
- SIM
- 1 x SIM
- Extras
- Micro USB (virtual network interface)
- Power input
- 9 to 30 V DC, 4-pin socket
- I/O on power socket
- 1 digital input, 1 digital output
- Peak draw at 12 V
- 3.9 W (324 mA)
- Size
- 74.5 x 25 x 64.4 mm
- Status
- In production
Power socket pinout
| Pin | Function | Our wire |
|---|---|---|
| 1 | Power (+) | Red |
| 2 | Ground (-) | Black |
| 3 | Digital input or output | Green |
| 4 | Digital input or output | White |
Wire colours are for our screw terminal cable. On TRB gateways, check Teltonika's pinout drawing to see which of pins 3 and 4 is the input.
How much power the TRB140 draws
With everything busy, Teltonika's figure for the Teltonika TRB140 is 3.9 W at 12 V, and about 0.72 W at rest. Even that peak leaves 14.1 W spare on the 18 W supply. Teltonika's 24 V figure is 3.9 W at peak.
Which cable should I pick?
- Wall socket. 12 V from a wall socket. The TRB140 peaks at 3.9 W, well within the 18 W rating.
- Vehicle. Quick vehicle install. Fine on 12 V and 24 V systems.
- Cabinet, battery or solar. Bare ends for 12, 24 or 30 V DC, with the I/O wires included. Add a 2 A slow-blow fuse near the source.
Install tips
- Inside machinery, route the cable away from motor leads and contactors. A short screw terminal run from the machine's own 24 V supply is usually the tidiest option.
- On 24 V vehicles, add surge protection. Truck and bus systems can spike well above 30 V at engine start, and the Teltonika TRB140 is only rated to 30 V.
- Fit a fuse near the battery when you use the screw terminal cable on 12 V. Our FAQ suggests a 2 A slow-blow fuse.
Teltonika TRB140 power FAQ
?Which input voltage does the Teltonika TRB140 accept?
Anything from 9 to 30 V DC works, so a 12 V battery, a 24 V truck system or our 12 V supply are all fine. Stay below 30 V, including spikes.
?I lost the adapter for my Teltonika TRB140. What do I need?
Any DC supply within 9 to 30 V DC on a Teltonika-style 4-pin plug will work. Our 230 V supply gives 12 V at 1.5 A, which suits the Teltonika TRB140.
?The Teltonika TRB140 is tiny. Is the 4-pin plug the same size as on the routers?
Yes. It uses the same 4-pin power socket as the RUT and RUTX routers, so our cables plug straight in.
?Does the screw terminal cable give access to the Teltonika TRB140's I/O?
The 4-pin socket on the Teltonika TRB140 carries one digital input and one digital output, and the screw terminal cable brings both out on the green and white wires. Check Teltonika's pinout drawing for which pin is which before wiring.
?How much headroom does the Teltonika TRB140 leave on an 18 W supply?
Plenty. At 3.9 W peak, the Teltonika TRB140 uses 22% of 18 W.
?Can I buy the Teltonika TRB140 from you?
No, the router is not included. You get the cable or supply you order, and the Teltonika TRB140 itself comes from a Teltonika reseller.