PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1794-TB3K is a terminal base designed for the FLEX I/O modular system. It features cage clamp terminals providing termination points for field wiring. The unit supports up to sixteen input connections for signal wiring. An integrated FlexBus interface provides power transfer up to 5V DC at 640 mA. Continuous isolation voltage is rated at 125V with basic insulation.
This terminal base operates across an ambient temperature range from -20 to 70 degrees Celsius. The maximum current rating for connected I/O terminals is 2 A. Its V/COM terminals handle up to 125V AC/DC at 10 A under standard configurations. Under ATEX, UKEX, and IECEx compliance standards, ratings adjust to 60V AC or 75V DC. The assembly withstands operating shock levels up to 30 g.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| UPC | 612598317172 |
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| Weight | 0.13 lbs (0.06 kg) |
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| Terminal Type | Cage Clamp |
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| Number of Input Connections | 16 |
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| Terminal Screw Torque | 0.56 to 0.79 Nm |
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| Maximum FlexBus Supply Voltage Rating | 5V DC, 640 mA |
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| Maximum I/O Terminal Supply Voltage Rating | 2 A |
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| Maximum V/COM Terminals Supply Voltage Rating | 125V AC/DC, 50/60 Hertz, 10 A, or 60V AC, 50/60 Hertz and 75V DC (ATEX/UKEX/IECEx) |
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| Continuous Isolation Voltage | 125V with Basic Insulation |
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| North American Temperature Code | T4A |
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| Approximate Dimensions with Module Installed | 94 x 94 x 69 mm |
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| Operating Temperature | -20 to 70 degrees Celsius |
|---|
| Operating Shock | 30 g |
|---|
| Non-Operating Shock | 50 g |
|---|
TECHNICAL INFORMATION
Features
- Cage clamp terminal style for direct field wiring connection.
- Sixteen input connection capacity for modular field signal distribution.
- Rated for 5V DC FlexBus supply voltage at 640 mA.
- Operating temperature tolerance from -20 to 70 degrees Celsius.
- Shock resistance rated up to 30 g during operational use.
- Screw torque specifications ranging from 0.56 to 0.79 Nm.
TECHNICAL INFORMATION
Connections / Interfaces
- Sixteen input cage clamp termination points for field device wiring.
- FlexBus backplane connector rated for 5V DC at 640 mA.
- V/COM power distribution terminals supporting up to 10 A continuous current.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the unit securely within a standard FLEX I/O backplane layout.
- Tighten terminal screws to a torque between 0.56 and 0.79 Nm.
- Ensure ambient operational temperatures remain between -20 and 70 degrees Celsius.
- Maintain appropriate basic insulation separation for 125V continuous isolation requirements.
TECHNICAL INFORMATION
Compliance and Certifications
- North American Temperature Code rated T4A.
- Compliant with ATEX, UKEX, and IECEx standards for rated voltage limits.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What terminal connection type does the 1794-TB3K use?
The 1794-TB3K utilizes cage clamp terminals for field wiring connections.
What is the operating temperature range for the 1794-TB3K terminal base?
The operating temperature range is -20 to 70 degrees Celsius.
What are the dimensions of the 1794-TB3K when installed?
With a module installed, the base measures approximately 94 x 94 x 69 mm.
What is the recommended screw torque for wiring terminals?
The recommended terminal screw torque is between 0.56 and 0.79 Nm.
