The 1794-TB3GS is a high-performance spring-clamp terminal base from the Allen-Bradley Flex I/O family, engineered for demanding industrial environments where wiring integrity and rapid installation are critical. This 3-wire spring terminal base eliminates the need for screw tightening, reducing installation time and preventing common field wiring errors such as loose connections. Each point supports up to three wires (signal, return, and shield), making it an ideal choice for connecting 3-wire proximity sensors, limit switches, and other field devices. The spring-clamp mechanism provides consistent contact force, ensuring reliable operation even under constant vibration. The base is fully compatible with all 1794 series I/O modules, including analog, digital, and specialty modules, and is designed for use in both AC and DC control systems. Its compact footprint allows high-density mounting in control panels, while the clear labeling and color-coded wiring guides simplify maintenance and troubleshooting.
| Parameter |
Specification |
| Product Series |
Allen-Bradley Flex I/O (1794 Series) |
| Model |
1794-TB3GS |
| Type |
3-Wire Spring Terminal Base |
| Connection Technology |
Spring-clamp (cage clamp) – no screw tightening required |
| Number of Positions |
16 points (per base) |
| Wire Size Range |
0.5 mm² to 2.5 mm² (AWG 20 to 14) |
| Wire Stripping Length |
8 mm (0.31 in) |
| Max. Current per Point |
2 A (continuous) |
| Max. Voltage |
30 V DC / 24 V AC (field side) |
| Dielectric Strength |
1500 V AC for 1 minute (between field and backplane) |
| Operating Temperature |
-20°C to +60°C (-4°F to +140°F) |
| Storage Temperature |
-40°C to +85°C (-40°F to +185°F) |
| Relative Humidity |
5% to 95% (non-condensing) |
| Vibration Resistance |
10 Hz to 500 Hz, 2 g (per IEC 60068-2-6) |
| Shock Resistance |
15 g, 11 ms half-sine (per IEC 60068-2-27) |
| Mounting |
DIN rail (35 mm) or panel mount |
| Dimensions (H x W x D) |
87 mm x 45 mm x 52 mm (3.43 in x 1.77 in x 2.05 in) |
| Weight |
Approx. 0.12 kg (0.26 lb) |
| Compatible Modules |
All 1794 series I/O modules (digital, analog, specialty) |
| Protection Class |
IP20 (open enclosure) |
| Certifications |
CE, UL, CSA, ATEX (for hazardous locations when used with approved modules) |
| Wiring Configuration |
3-wire per point: signal (+), return (-), shield/ground |
| Color Code |
Gray housing with clear terminal numbering |
| Shipping |
100% Original and New – available for immediate global shipment |
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