Siemens 6GT2821-4AC10 SIMATIC RF200 RF240R RS422 13.56MHz IP67 RFID Reader

The Siemens 6GT2821-4AC10 is a SIMATIC RF200 RF240R RFID reader with an RS422 (3964R) interface for connecting to SIMATIC communication modules. Built into a compact 50 x 50 x 30 mm cuboid housing with an integrated antenna, it reads ISO 15693 transponders at 13.56 MHz and carries an IP67 rating for -20 to +70°C operation.

Certifications & Standards

• EPD

Selection Notes

The flat 50 x 50 x 30 mm PA6.6 housing lets the 6GT2821-4AC10 mount to a bracket with 2 x M5 screws instead of a threaded barrel hole, which suits panel or guide-rail faces where a cylindrical body would not sit flush. Its RS422 (3964R) interface connects to a SIMATIC communication module, the same as the barrel-style readers in this family, so the read logic runs the same way regardless of housing shape. Pick this cuboid body over the M18/M30 barrel variants when the mounting surface is flat and a low-profile 30 mm height matters more than antenna diameter; pick the RS232 ASCII variant of this reader instead if it needs to talk to a PC or scanner directly without a SIMATIC module.

Applications

Used for part and tote identification on flat mounting surfaces such as conveyor guide rails, work-cell fixtures, or machine frames where a low-profile reader body is preferred over a barrel style.