The Siemens 6GT2810-2HG80 is a SIMATIC RF680T UHF RFID transponder built for the RF600 system. It operates across 865 to 928 MHz, covering global UHF bands, and uses the NXP G2XM chip with EPCglobal Class 1 Gen 2 / ISO 18000-63 protocol. The tag is designed for asset tracking and identification in environments where standard tags fail — think paint-shop conveyors, engine-block carriers, autoclave cycles, or foundry work-in-progress where the tag must survive both the process heat and high-pressure washdown.
The IP68/IPx9K rating means the tag body withstands continuous immersion beyond 1 m and high-pressure, high-temperature washdown — the same standard used in food-processing and chemical plants. The tag is also IECEx and ATEX certified (II 2G Ex ib IIB T6 to T2 Gb, II 2D Ex ib IIIB T135 °C Db), so it can be mounted in Zone 1 gas and Zone 21 dust hazardous areas without an additional enclosure. The temperature endurance is the headline spec for this part. It operates continuously at 140 °C, survives 5000 hours or 3000 cycles at 200 °C, and 2000 hours or 1500 cycles at 220 °C. Outside the read/write area it can sit at -40 to +220 °C. That thermal profile is what separates the RF680T from commodity UHF tags — it is sized for a paint oven or a hot-metal handling line, not a warehouse pallet rack. Read range is listed as up to 4 m, but that figure is reader-dependent and the system manual notes overrange is possible. In practice, range depends on the RF600 reader model, antenna gain, and mounting surface (metal vs plastic). The tag is multitag-capable and supports a max transfer rate of 320 kbit/s, which matters when you are reading a rack of parts in motion. Memory is organized as 96-bit (12-byte) EPC, expandable to 240-bit (30-byte), plus 64 bytes of user memory and a 64-bit TID. The user memory is lockable, write-protected, and password-protectable — useful for writing a serial number or process step that cannot be overwritten on the line.
The tag carries cULus approval and IECEx certification, so it is accepted in North American and international hazardous-location installations. This is a quoted-to-order line; we source it against an RFQ for the required quantity.
Mounting and mechanical constraints
The tag measures 130 mm deep by 32 mm wide by 15 mm high, in a black PPS (polyphenylene sulfide) housing. It fastens with two M6 screws. The material is silicone-free, which matters in paint shops where silicone contamination causes fisheyes. Shock resistance is rated to 1000 m/s² per DIN EN 60721-3-7 Class 7M3, and vibrational acceleration to 200 m/s². Note that torsion and bending stress are not permissible — the tag must be mounted on a flat surface without flexing.