The Allen-Bradley 1794-TB3TSK is a high-performance 3-wire temperature terminal base engineered for precision temperature measurement in demanding process control applications. Part of the Rockwell Automation Flex I/O family, this terminal base supports direct connection of RTDs, thermocouples, and resistance sensors using a 3-wire configuration, which minimizes lead resistance errors and ensures accurate temperature readings. Its rugged construction and screw-clamp terminals provide secure, maintenance-free connections in environments with high vibration, dust, or extreme temperatures. The 1794-TB3TSK is ideal for use in oil & gas, chemical processing, power generation, and food & beverage industries where reliable temperature monitoring is critical.
| Parameter |
Specification |
| Product Type |
3-Wire Temperature Terminal Base |
| Series |
Flex I/O |
| Model Number |
1794-TB3TSK |
| Wire Configuration |
3-wire (RTD, thermocouple, resistance sensor) |
| Number of Channels |
1 channel (single sensor input per base) |
| Connection Type |
Screw-clamp terminals (captive screws) |
| Wire Gauge Range |
14 to 22 AWG (solid or stranded) |
| Rated Voltage |
24V DC (typical for Flex I/O backplane) |
| Operating Temperature |
-20°C to +55°C (-4°F to +131°F) |
| Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Humidity Range |
5% to 95% non-condensing |
| Vibration Resistance |
5 g Standard Models 10-500 Hz (per IEC 60068-2-6) |
| Shock Resistance |
30 g (11 ms half-sine pulse) |
| Enclosure Type |
Open-style (requires panel or enclosure mounting) |
| Dimensions (H x W x D) |
Approx. 87 mm x 25 mm x 70 mm (3.43 in x 0.98 in x 2.76 in) |
| Weight |
Approx. 0.12 kg (0.26 lb) |
| Compatible Modules |
1794-IRT8, 1794-IT8, 1794-IT8K, 1794-TB3S, 1794-TB3SK |
| Standards Compliance |
CE, UL, CSA, ATEX (when used with appropriate barriers) |
| Protection Rating |
IP20 (finger-safe terminals) |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22