Teltonika PR3PUUS3 US 9 W Power Supply for RUT240 and RUT955 Routers

If you run RUT240 or RUT955 routers in the United States, this is their wall adapter. The PR3PUUS3 delivers the 9 W Teltonika specifies for both models through the correct router-side connector, with a fixed US plug on the AC end — nothing to assemble, nothing to misplace. The RUT240 and RUT955 have earned their place in kiosks, ATMs, remote monitoring cabinets and branch failover setups, which means the installed base is huge and adapters constantly go missing during moves, decommissions and desk cleanouts. The PR3PUUS3 is the part that puts those routers back in service. It is also the sensible line item to add to every new router order as a shelf spare; power adapters fail and disappear far more often than the routers they feed. The 9 W rating is not arbitrary. Cellular routers draw modestly at idle but spike during transmit, and both models were specified around that peak. Generic adapters with loose ratings are the root cause of a classic field complaint — a router that reboots only during heavy uplink traffic. The factory supply holds voltage through those peaks. Keep family boundaries in mind: this part serves the RUT240/RUT955 pair. The RUTX line needs 18 W or 24 W supplies, and TRB gateways use their own 9 W part (PR3PRUS6). At roughly 0.22 lb, stocking a handful of PR3PUUS3 units costs almost nothing and saves truck rolls.