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Installation Instructions
Original Instructions
FLEX I/O Terminal Base Units
Catalog Numbers 1794-TB2, 1794-TB2K, 1794-TB3, 1794-TB3K, 1794-TB3S, 1794-TB32, 1794-TB32S, 1794-TB32SK, 1794-TB32K, 1794-TB3G, 1794-TB3GK,
1794-TB3GS, 1794-TB3T, 1794-TB3TS, 1794-TBN, 1794-TBNK, 1794-TBNF, 1794-TB3SK, 1794-TB3GSK, 1794-TB3TK, 1794-TB3TSK
(Modules with a K in the last position of the catalog number are conformally coated to meet noxious gas requirements of ISA/ANSI-71.040 1985 Class G3 Environment).
Topic
Summary of Changes
This publication contains the following new or updated information. This list includes substantive updates only and is not intended to reflect all changes. Translated versions are not
always available for each revision.
Topic
Updated and added new K catalogs: 1794-TB2K, 1794-TB32K, 1794-TB32SK
Updated template
Added lower ratings (60V AC/75V DC) to catalogs 1794-TB2, 1794-TB2K, 1794-TBN,
1794-TBNK, 1794-TB3, 1794-TB3K, 1794-TB3S, 1794-TB3SK, 1794-TB3T, 1794-TB3TK,
1794-TB3TS, and 1794-TB3TSK for ATEX/IECEx applications
Updated certifications
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Table of Contents
Related Manuals for Rockwell Automation Allen-Bradley 1794-TB2
Summary of Contents for Rockwell Automation Allen-Bradley 1794-TB2
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Page 1: Table Of Contents
Installation Instructions Original Instructions FLEX I/O Terminal Base Units Catalog Numbers 1794-TB2, 1794-TB2K, 1794-TB3, 1794-TB3K, 1794-TB3S, 1794-TB32, 1794-TB32S, 1794-TB32SK, 1794-TB32K, 1794-TB3G, 1794-TB3GK, 1794-TB3GS, 1794-TB3T, 1794-TB3TS, 1794-TBN, 1794-TBNK, 1794-TBNF, 1794-TB3SK, 1794-TB3GSK, 1794-TB3TK, 1794-TB3TSK (Modules with a K in the last position of the catalog number are conformally coated to meet noxious gas requirements of ISA/ANSI-71.040 1985 Class G3 Environment). Topic Page Summary of Changes... - Page 2 Indien de apparatuur wordt gebruikt op een wijze die niet is gespecificeerd door de fabrikant, dan bestaat het gevaar dat de beveiliging van de apparatuur niet goed werkt. Rockwell Automation Publication 1794-IN092F-EN-P - November 2021...
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Page 3: Environment And Enclosure
Secure DIN rail to mounting surface approximately every 200 mm (7.8 in.) and use end-anchors appropriately. Be sure to ground the DIN rail properly. See the Industrial Automation Wiring and Grounding Guidelines, Rockwell Automation publication 1770-4.1, for more information. -
Page 4: North American Hazardous Location Approval
Comply to Standards IEC 60079-0 6th Edition, IEC 60079-7 5th Edition reference IECEx certificate number IECEx UL 14.0066X. • May have catalog numbers followed by a "K" to indicate a conformal coating option. Rockwell Automation Publication 1794-IN092F-EN-P - November 2021... -
Page 5: Terminal Base Overview
• This equipment shall be used within its specified ratings defined by Rockwell Automation. • Provision shall be made to prevent the rated voltage from being exceeded by transient disturbances of more than 140% of the peak rated voltage when applied in Zone 2 environments. -
Page 6: Mount The Terminal Base Unit On A Din Rail
Press down on the terminal base to lock it on the DIN rail. If the terminal base does not lock into place, use a screwdriver or similar device to open the locking tab, press down on the base, and release the locking lever to lock the base in place. Rockwell Automation Publication 1794-IN092F-EN-P - November 2021... - Page 7 ATTENTION: When using FLEX I/O modules in a high-vibration installation, especially when mounting the DIN rail vertically, use DIN rail locks (Allen-Bradley catalog number 1492-EA35) to prevent accidental separation of the terminal block units. Rockwell Automation Publication 1794-IN092F-EN-P - November 2021...
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Page 8: Wire Connections For 1794-Tb32, 1794-Tb32K, 1794-Tb32S, 1794-Tb32Sk Terminal Bases
Wire Connections for 1794-TB3G, 1794-TB3GK, 1794-TB3GS, 1794-TB3GSK Terminal Bases 1794-TBN shown Even Numbered I/O Terminals 0 to 14 Odd Numbered I/O Terminals 1 to 15 +V = Terminals C-34, C-51 COM (-V) = Terminals B-16, B-33 Rockwell Automation Publication 1794-IN092F-EN-P - November 2021... - Page 9 For Spring-clamp Terminal Base Units: 1794-TB3S, 1794-TB3TS, 1794-TB3GS, 1794-TB32S, 1794-TB32SK, 1794-TB3SK, 1794-TB3TSK, and 1794-TB3GSK • Insert a 2.54…3.05 mm (0.10…0.12 in.) wide-bladed screwdriver into the slot and lift. • Insert wire and remove screwdriver. Rockwell Automation Publication 1794-IN092F-EN-P - November 2021...
- Page 10 Rotate downward to open the circuit. This opens the path of an individual circuit. To re-establish the circuit, rotate the knife switch back into the terminal base unit until it snaps into place. Rockwell Automation Publication 1794-IN092F-EN-P - November 2021...
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Page 11: Specifications
0.21…1.3 mm² (24…16 AWG) stranded copper wire rated at 105°C (221 °F) or greater, 1.2 mm (3/64 in.) insulation max Established by installed module Wiring category For 1794-TB3G, 1794-TB3GS, 1794-TB3GSK, 1794-TB3GK, 1794-TB3, 1794-TB3K, 1794-TB3T, 1794-TB3TK, 1794-TB3S, 1794-TB3SK, 1794- TB3TS, 1794-TB3TSK, 1794-TBN, 1794-TBNK, 1794-TB32, 1794-TB32S North American temp code For 1794-TB2, 1794-TB3K Rockwell Automation Publication 1794-IN092F-EN-P - November 2021... -
Page 12: Working Voltage And Isolation Voltage Ratings
5…95% noncondensing IEC 60068-2-6 (Test Fc, Operating): Vibration 5 g @ 10…500 Hz IEC 60068-2-27 (Test Ea, Unpackaged Shock): Operating shock 30 g IEC 60068-2-27 (Test Ea, Unpackaged Shock): Nonoperating shock 50 g Rockwell Automation Publication 1794-IN092F-EN-P - November 2021... -
Page 13: Certifications
GB 3836.1-2010 Explosive atmospheres — Part 1: Equipment — General requirements GB 3836.8-2014 Explosive atmospheres - Part 8: Equipment protection by type of protection “n” (1) See the Product Certification link at rok.auto/certifications for Declaration of Conformity, Certificates, and other certification details. Rockwell Automation Publication 1794-IN092F-EN-P - November 2021... -
Page 14: Mounting Dimension
A = Mounting hole dimensions for optional mounting kit. B = DIN rail. C = Operating temperature 25.4 (1.0) below each module when mounted in any position Measure here for horizontal position. must not exceed 55 °C (131 °F). Rockwell Automation Publication 1794-IN092F-EN-P - November 2021... - Page 15 FLEX I/O Terminal Base Units Installation Instructions Notes: Rockwell Automation Publication 1794-IN092F-EN-P - November 2021...
- Page 16 Rockwell Otomasyon Ticaret A.Ş. Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400 EEE Yönetmeliğine Uygundur Connect with us. Allen-Bradley, expanding human possibility, FactoryTalk, FLEX, Rockwell Automation, and TechConnect are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.
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