Allen-Bradley 1794-TB3G Terminal Base,Flex I/O,36 I/O Terminals,2 Common Terminals,2
$149.99
Out of stock
Request QuoteAllen-Bradley 1794-TB3G — The 1794-TB3G is an Allen-Bradley FLEX I/O Cage-clamp Terminal Base Unit rated 24V AC/DC, 10A (V/COM terminals), with 31.2V DC/AC maximum, 8 input/output channels, chassis ground terminations, and operates -20…70 °C.
| Catalog Number | 1794-TB3G |
| Terminal Type | Cage-clamp |
| Supply Voltage (V/COM Terminals) | 31.2V DC/AC, 50/60Hz, 10A |
| I/O Terminals Rating | 2A max |
| Operating Temperature | -20…70 °C (-4…158 °F) |
| Isolation Voltage | Capable of 50V (continuous) maximum, Basic Insulation Type, Field Wiring Terminals to FLEXBUS |
PLC Exchange is not an authorized distributor: Original Packaging is synonymous with Used Surplus. See Original Packaging or Warranty for more information.
Description
Allen-Bradley 1794-TB3G
The 1794-TB3G is an Allen-Bradley FLEX I/O Cage-clamp Terminal Base Unit rated 24V AC/DC, 10A (V/COM terminals), with 31.2V DC/AC maximum, 8 input/output channels, chassis ground terminations, and operates -20…70 °C.
| Product Overview | |
|---|---|
| Catalog Number | 1794-TB3G |
| Product Type | FLEX I/O Terminal Base Unit |
| Terminal Configuration | Cage-clamp |
| Input/Output Channels | 8 channels with chassis ground terminations |
| Mounting Method | DIN Rail (35 x 7.5 mm) |
| FLEXBUS Connector | Female (input) and Male (output) connectors |
| Electrical Specifications | |
|---|---|
| Supply Voltage Range (V/COM Terminals) | 31.2V DC/AC, 50/60Hz, 10A |
| I/O Terminals Maximum Current | 2A max |
| FLEXBUS Supply Voltage | 5V DC, 640 mA |
| Isolation Voltage (Field Wiring to FLEXBUS) | Capable of 50V (continuous) maximum, Basic Insulation Type |
| Isolation Voltage (Field Wiring to Functional Ground) | 2500V DC/sec |
| Terminal Screw Torque | 0.56…0.79 Nm (5…7 lb-in) |
| Wire and Connection Specifications | |
|---|---|
| Wire Size | 0.34… 3.3 mm² (22…12 AWG) solid or stranded copper wire rated at 75 °C (167 °F) or greater |
| Wire Insulation Maximum | 1.2 mm (3/64 in.) |
| Strip Length | 5-6 mm (0.20…0.24 in.) |
| Terminals Per Channel | 2 (one for I/O, one for common) |
| Wiring Category | Established by installed module |
| Maximum Conductors Per Terminal | 1 conductor (no more than 1) |
| Environmental and Operating Conditions | |
|---|---|
| Operating Temperature | -20…70 °C (-4…158 °F) |
| Non-operating Temperature | -40…85 °C (-40…185 °F) |
| Relative Humidity | 5…95% noncondensing (IEC 60068-2-30) |
| Vibration (Operating) | 5 g @ 10…500 Hz (IEC 60068-2-6) |
| Operating Shock | 30 g (IEC 60068-2-27) |
| Non-operating Shock | 50 g (IEC 60068-2-27) |
| Altitude Rating | Up to 2000 m (6562 ft) without derating |
| Pollution Degree | Pollution Degree 2 industrial environment |
| Safety and Certification | |
|---|---|
| North American Temperature Code | T4A |
| IEC Temperature Code | T4 |
| Hazardous Location Approval (North American) | Class I Division 2 Groups A, B, C, D (1794-TB3G) |
| Hazardous Location Approval (European) | Zone 2 (1794-TB3G) |
| UL Certification | c-UL-us – UL Listed Industrial Control Equipment, certified for US and Canada (UL File E65584). UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations (UL File E194810) |
| CSA Certification | CSA Certified Process Control Equipment (CSA File LR54689C). CSA Certified for Class I, Division 2 Group A,B,C,D Hazardous Locations (CSA File LR69960C) |
| CE European Compliance | EN 61326-1; EN 61000-6-2; EN 61000-6-4; EN 61131-2; EN 61131-2 (LVD) |
| ATEX Directive | EN 60079-15; EN 60079-0 (Zone 2) – Protection ‘n’ (II 3 G Ex nA IIC T4 X) |
| TÜV Certification | TÜV Certified for Functional Safety – Capable of SIL 2 |
| Physical Dimensions | |
|---|---|
| Dimensions (H x W x D) | 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.) with module installed |
| DIN Rail Type Required | 35 x 7.5 mm (A-B part no. 199-DR1), zinc plated yellow-chromate steel |
| DIN Rail Fastening Interval | Approximately every 200 mm (7.87 in.) |
| Minimum Air Space Around Installation | 25.4 mm (1.0 in.) |
| Enclosure Type Rating | None (open-type equipment) – must be mounted in suitable enclosure |
| Features and Options | |
|---|---|
| Chassis Ground Terminals | Available (1794-TB3G) – Terminals B-16, B-33, C-38, C-40 through C-45, C-47 |
| Keyswitch | Set to position required for installed module |
| Module Locking Mechanism | Locking tab and module locking latch |
| Cover Plug | Included for male flexbus connector |
| Daisy-chain Capability | Yes – Supply in: C-34 (+), C-35 (-); Supply out: C-50 (+), C-51 (-) |
| Conformal Coating (K designation) | Available (1794-TB3GK) for ISA/ANSI-71.040 1985 Class G3 noxious gas environments |
PLC Exchange Original Packaging is synonymous with Used Surplus. Because we are not an authorized distributor, we are not legally allowed to claim these items as “New”, “Factory Sealed”, or any other term that may imply such. We have over 10 years of experience working with trusted suppliers to make sure you receive the top-quality hardware you need. Used Surplus items ship in their original packaging, with the same function and contents as OEM-supplied materials. PLC Exchange is an independent supplier of industrial automation products and is not affiliated with the brand manufacturer or any of its authorized distributors. All warranties are provided directly by PLC Exchange. Trademarks, logos, and brand names referenced are property of their respective owners and are used for descriptive identification only.
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.
Technical Notes for 1794-TB3G
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 1794-TB3G units sold by PLC Exchange are tested and ship in original factory packaging.
- For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.
Alternative Part Numbers & Names for 1794-TB3G
The 1794-TB3G by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- 1794TB3G
- Allen Bradley 1794-TB3G
- Allen-Bradley 1794-TB3G
- 1794 TB3G
- 1794/TB3G
All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.
Additional information
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 3.7 × 3.7 × 2.7 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 612598180233 |
| mpn | 1794-TB3G |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 1794-TB3G
| Shipping Dimensions | |
|---|---|
| Weight | 0.5 lbs |
| Length | 3.7 in |
| Width | 3.7 in |
| Height | 2.7 in |
| Box Dimensions (L×W×H) | 3.7 × 3.7 × 2.7 in |
Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.
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Frequently Asked Questions
Does the 1794-TB3G include a warranty?
Yes. Every 1794-TB3G sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/
What is the return policy for the 1794-TB3G?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 1794-TB3G ship?
In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.
Who manufactures the 1794-TB3G?
The 1794-TB3G is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.
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