What it is and what it does
The Siemens 6GT2811-5BA00-1AA1 is a UHF RFID reader from the RF600 series, operating in the 902 to 928 MHz band. It reads and writes to RF600 transponders using the EPCglobal Class 1 Gen 2 / ISO 18000-6C protocol. The unit connects to communication modules via an M12 8-pin connector and runs on a 24 VDC supply (21.6 to 30 VDC range).
Key ratings and what they mean for fit
Read range is rated at 5 m maximum, with extended ranges possible per the RF600 System Manual — so for a typical conveyor portal or dock door, you get reliable tag reads at that distance. The reader can power up to 2000 mW per external antenna, and the antenna cable can run up to 40 m from the reader body, giving flexibility in placement away from the antenna. The IP65 protection class means the aluminum/ABS housing handles washdown and dust ingress — fine for food processing, outdoor logistics, or any area where hoses are used. Operating temperature range is -25 to +55 °C, with a note that below -20 °C a 10-minute warm-up is required. Current draw at 24 VDC is 0.47 A maximum, 0.395 A typical — so a standard 24 VDC power supply with a 1 A output can run this plus one additional device on the same circuit. Power consumption spans 105 mW minimum to 1250 mW maximum, depending on transmit power and read activity. MTBF is listed at 19 years — a solid reliability figure for a fixed-install RFID reader in a production environment. Vibration resistance is 200 m/s² and shock resistance is 500 m/s², per EN 60068-2-6 and EN 60068-2-27, meaning it can handle the jolts from nearby presses or conveyors without failing.
Where it goes and how it mounts
Mounts via 4 x M6 screws or VESA 100 with 4 x M4 screws — so it can go on a machine frame, a panel stand, or a dedicated bracket. Dimensions are 252 mm high, 193 mm wide, 52 mm deep. The M12 8-pin connector handles both power and RS 422 interface (up to 100 m cable length).