What it is and what it does
The Siemens 6GT2898-0AA20 is a wide-range voltage supply for SIMATIC RF600 RFID systems. It takes a 1-phase AC input from 94 to 264 V (or 120 to 353 V DC) and delivers a regulated 24 V DC output at 3 A, with a rated range of 0 to 4 A. The output is SELV/PELV per EN 60950, galvanically isolated from the input, and short-circuit proof with a constant-current characteristic. Efficiency is 90 %.
Where it goes and how it mounts
This supply is built for direct connection of RFID readers in industrial environments — the description explicitly says "power supply for direct connection of readers" and "for direct connection of 2 readers" in the USA. It comes with a US plug on a 2 m cable at the input, and two M12 4-pin A-coded female connectors at the output. The enclosure is IP65, so it can be mounted directly on a machine or near the read point without a separate cabinet. Mounting is via 4x M5 screws; dimensions are 85 mm wide, 35 mm high, 175 mm deep. Cooling is by free convection — no fan, no maintenance.
Key ratings at a glance
Input: 94–264 V AC (50/60 Hz) or 120–353 V DC. Output: 24 V DC fixed, 3 A continuous (0–4 A range). Voltage tolerance: 2 %. Operating temperature: –25 to +55 °C; storage/transport: –40 to +85 °C. No signaling contact is fitted.