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1794-TB3

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The 1794-TB3 is a terminal base unit that is part of Allen-Bradley’s Flex I/O platform. This terminal base is rated 640 mA @ 5VDC and voltage rating of 120 VAC and a maximum of 10 Amperes. It comes with Three (3) strips of screw clamp terminals.

Availability: 300 in stock

GTIN: 10662468112359 SKU: 1794-TB3 Categories: ,

1794-TB3 Allen Bradley Rockwell Automation

 Technical Specifications for 1794-TB3

Manufacturer Rockwell Automation
Brand Allen-Bradley
Part Number/Catalog No. 1794-TB3
Series Flex I/O
Product Type Flex I/O Terminal Base Unit
Terminal Screw Torque 0.56-0.79 Nm
No. of Terminal strips Three (3)
Module Type Terminal Base Unit
No. of terminals 52
Connection type Screw clamp
Supply Voltage Range max. 125V DC/AC, 50/60Hz, 10A
No. of terminal rows 2 terminal rows
Terminal strip assignment Top: I/O terminals Middle: Common terminal bottom: Supply Terminal
Isolation Voltage 125V Continuous
I/O terminals: Sixteen (16) terminals
Terminal row assignments 1 row with 16 terminals; 1 row with 18 terminals
Voltage Rating 24V DC/AC, 120V DC/AC
Common / Supply terminals Eighteen (18) terminals
Terminal assignment 0-15: I/O connections 16-33: Voltage common connection 34-51: Voltage + connection
Wire Size 0.34-3.3mm^2
Conductors 12 gauge or 4 mm2 (max); 22 gauge or 0.35 mm2 (min) 3/64 inch or 1.2 mm insulation thickness
Daisy-chaining: Supported
Dimensions 94x94x69 mm
Voltage rating, max. 132 VAC
UPC 10662468112359
Backplane current draw 640 mA @ 5VDC
Current capacity, max 10:00 AM
UNSPSC 32151602
Voltage rating 120 VAC
Channel isolation Module based
Current rating 10 Amperes
Dimensions (HxWxD) 94 mm x 94 mm x 69 mm
Compatible Modules 1794-IA8, 1794-IA8I, 1794-IA16, 1794-OA8, 1794-OA8I, 1794-OA16, 1794-IB8, 1794-IB16XT, 1794-IB10XOB6, 1794-IB10XOB6XT, 1794-IC16, 1794-IG16, 1794-IH16, 1794-IV16, 1794-OB8, 1794-OB8EP, 1794-OB8EPXT, 1794-OB16, 1794-OB16D, 1794-OB16P, 1794-OB16PXT, 1794-OC16, 1794-OG16, 1794-OV16, 1794-OV16P, 1794-OW8 and 1794-OW8XT
FlexBus current draw: 640 mA @ 5VDC
Installation: DIN Rail

About 1794-TB3

The 1794-TB3 is a Flex I/O component that is manufactured by Allen-Bradley. This component is specifically a Terminal Base unit, primarily used as termination points of field devices and power supply devices. this module is also used to host Flex I/O modules specifically, 1794-IA8, 1794-IA8I, 1794-IA16, 1794-OA8, 1794-OA8I, 1794-OA16, 1794-IB8, 1794-IB16XT, 1794-IB10XOB6, 1794-IB10XOB6XT, 1794-IC16, 1794-IG16, 1794-IH16, 1794-IV16, 1794-OB8, 1794-OB8EP, 1794-OB8EPXT, 1794-OB16, 1794-OB16D, 1794-OB16P, 1794-OB16PXT, 1794-OC16, 1794-OG16, 1794-OV16, 1794-OV16P, 1794-OW8, and 1794-OW8XT. The 1794-TB3 is had Three (3) terminal strips. The top terminal strip is composed of Sixteen (16) terminals designated for wiring of input and output signals. The middle and bottom terminal is composed of Eighteen (18) terminals, designated for common and voltage terminals. -V Common is located at Terminals B-16 and B-33; +V (Voltage In) Terminals is located at C-34 and C-5 terminals. For daisy-chaining to nearby Flex I/O module and terminal base, the daisy-chaining terminal is located at C-34 (+) and B-16 (-) for supply in and C-51 (+) and B-33 (-) for supply out. The 1794-TB3 has screw clamp terminals. To install the terminal base, position the terminal base at a slightly angled orientation. Hook the terminal base over the top of the DIN rail to attach the back of the terminal base to the DIN rail. The Terminal base hook must slide under the edge of the adapter module and the FlexBus connecter is engaged. Slide the terminal base and push tight against the adjacent adapter. To lock the terminal base to the DIN Rail, push the terminal base until the 1794-TB3 aligns and engages to the DIN rail.

The 1794-TB3 Flex I/O Terminal Base Unit by Allen-Bradley is a device which provides terminal connection points for I/O wiring and contributes to the formation of the backplane. It has a maximum of 16 I/O connections with 18 common terminals and 18 voltage terminals. The 1794-TB3 is used in an application with a 125V AC/DC electrical rating and it has a maximum current capacity of 10A with 0.21 x 1.3 mm2 (24-16 AWG) stranded copper wire intended for use with input and output modules. The 1794-TB3 has a Flexbus rating of 5V DC at 640mA and it supplies a 2A current to the I/O terminals. It also has V/COM Terminals ratings of 125V DC/AC and 10A at 50-60Hz.

The 1794-TB3 provides voltage isolation of 125V (continuous) using Basic Insulation Type between Field Wiring Terminals to FLEXBUS and it has a terminal screw torque of 0.56 x 0.79 Nm (5 x 7lb-in). It has a T4A (North America) designated temperature code and an IEC T4 temperature code. The 1794-TB3 has an IEC-rated operational temperature of -20-70 deg. C (-4-158 deg. F) at 5-95% non-condensing relative humidity and it is tested and rated to withstand an operational shock of 30G and a vibration of 5G at 10-500Hz. The 1794-TB3 is c-UL-us, UL, CSA, and CE-certified and has a dimension 94mm x 94mm x 69mm (3.7in x 3.7in x 2.7in).

FAQ for 1794-TB3

1. How many terminals does the 1794-TB3 have?

The 1794-TB3 has a total of 52 terminals.

2. Where does the I/O wires terminated to this module?

I/O wiring is terminated at terminals 0 through 15.

3. What is the current capacity of the 1794-TB3?

The 1794-TB3 has current capacity of 10 A.

1. What are compatible modules to the 1794-TB3?

The 1794-TB3 is compatible for use with 1794-IA8, 1794-IA8I, 1794-IA16, 1794-OA8, 1794-OA8I, 1794-OA16, 1794-IB8, 1794-IB16XT, 1794-IB10XOB6, 1794- IB10XOB6XT, 1794-IC16, 1794-IG16, 1794-IH16, 1794-IV16, 1794-OB8, 1794- OB8EP, 1794-OB8EPXT, 1794-OB16, 1794-OB16D, 1794-OB16P, 1794-OB16PXT, 1794-OC16, 1794-OG16, 1794-OV16, 1794-OV16P, 1794-OW8 and 1794-OW8XT. Flex I/O modules.

2. What is the connection type supported by the 1794-TB3?

The 1794-TB3 is a screw clamp terminal.

3. Does the 1794-TB3 allow terminal base daisy-chaining?

Yes. Terminal base daisy-chaining is supported by the 1794-TB3.

Technical Description of 1794-TB3

The Allen-Bradley 1794-TB3 is a Flex I/O terminal base unit. This is a 3-wire Screw clamp terminal base unit with Two (2) rows of terminals composed of One (1) row of 16 channels and One (1) row of 18 terminals. It has a voltage rating of 132 VAC, maximum and current capacity of 10 Amperes.

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Weight 1 kg
Dimensions 40 × 20 × 40 cm
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1794-TB31794-TB3
$84.00

Availability: 300 in stock