The housing is PA6.6 (anthracite), 50 x 50 x 30 mm, fastened with two M5 screws, and carries a single M8 connector for an external antenna and an M12 connector for the RS422 interface. Operating temperature spans -20 to +70 °C, so it handles ambient conditions inside a non-conditioned enclosure or near process heat. The 13.56 MHz HF band gives a read range up to 60 mm, though actual reach depends on the transponder type — the RFID system integrator should verify compatibility with the specific tag in use.
Siemens 6GT2821-5AC10 RF250R RFID Reader, RS422, 13.56 MHz
MPN6GT2821-5AC10
Active
Siemens SIMATIC RF200 RF250R RFID reader, RS422 interface (3964R), 13.56 MHz, IP65, 50 x 50 x 30 mm, anthracite.
$177.80 – $425.00Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Operating frequency (rated) | 13.56 MHz |
| Supported RF protocols | ISO 15693, ISO 18000-3 |
| Compatible transponders / systems | ISO 15693 Transponder (MDS Dxxx), for connecting to communication modules |
| Read/write range, max. | 60 mm; Range is dependent on transponder type: observe http://support.automation.siemens.com/WW/view/en/67384964 |
| Air-interface data rate, max. | 26.5 kbit/s |
| Multitag capable | No |
| Parameter | Value |
|---|---|
| Read time per byte (typ.) | 0.6 ms |
| Write time per byte (typ.) | 0.6 ms |
| MTBF | 430 a |
| Parameter | Value |
|---|---|
| Communication interfaces | RS422 |
| Voltage range (DC) | 20.4 ... 28.8 V |
| Rated value (DC) | 24 V |
| Current at 24 V (typ.) | 0.05 A |
| Status indicators (LEDs) | 3-color LED |
| Parameter | Value |
|---|---|
| Mounting / fastening method | 2 x M5 screws |
| Width | 50 mm |
| Height | 30 mm |
| Depth | 50 mm |
| Material | PA6.6 |
| Color | anthracite |
| Parameter | Value |
|---|---|
| Degree of protection (IP) | IP65 |
| Operating temperature range | -20 ... +70 °C |
| Storage temperature range | -25 ... +80 °C |
| Transport temperature range | -25 ... +80 °C |
| Shock acceleration | 500 m/s² |
| Vibration acceleration | 200 m/s² |
| Shock resistance standard | EN 60721-3-7 Class 7 M2 |
| Parameter | Value |
|---|---|
| IECEx certified | No |
Product details
Frequently asked questions
What is the MTBF of the 6GT2821-5AC10?
The listed MTBF is 430 a.
What is the color of the 6GT2821-5AC10?
The housing color is anthracite.
Will the 6GT2821-5AC10 drop into a panel specified around the 6ES7222-1BF22-0XA0?
No — the 6ES7222-1BF22-0XA0 is a S7-200 digital output module with a different form factor (62 x 45 x 80 mm) and a 24 V DC PLC backplane interface. The RF250R is an RFID reader with an RS422 interface, a 50 x 50 x 30 mm footprint, and requires an external antenna. They are not mechanically or electrically interchangeable.
MPN
6GT2821-5AC10