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Installation Instructions
POINT I/O One-piece Terminal Bases
Catalog Numbers 1734-TOP, 1734-TOPS, 1734-TOP3, 1734-TOP3S
Topic Page
About This Publication 1
Important User Information 2
Environment and Enclosure 3
Prevent Electrostatic Discharge 4
Install a Base 5
Remove a Base 6
Specifications 7
About This Publication
Read this publication for information about these terminal bases.
Catalog Number Number of Terminations Termination Type
1734-TOP 8 Screw-clamp
1734-TOPS 8 Spring-clamp
1734-TOP3 12 Screw-clamp
1734-TOP3S 12 Spring-clamp
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2 POINT I/O One-piece Terminal Bases
WARNING
IMPORTANT
Important User Information
Solid state equipment has operational characteristics differing from those of
electromechanical equipment. Safety Guidelines for the Application, Installation and
Maintenance of Solid State Controls (publication SGI-1.1
Rockwell Automation sales office or online at
http://literature.rockwellautomation.com
between solid state equipment and hard-wired electromechanical devices. Because
of this difference, and also because of the wide variety of uses for solid state
equipment, all persons responsible for applying this equipment must satisfy
themselves that each intended application of this equipment is acceptable. In no
event will Rockwell Automation, Inc. be responsible or liable for indirect or
consequential damages resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative
purposes. Because of the many variables and requirements associated with any
particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.No patent liability is
assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual. Reproduction of the contents of this
manual, in whole or in part, without written permission of Rockwell Automation, Inc.,
is prohibited. Throughout this manual, when necessary, we use notes to make you
aware of safety considerations.
Identifies information about practices or circumstances that can
cause an explosion in a hazardous environment, which may lead
to personal injury or death, property damage, or economic loss.
Identifies information that is critical for successful application
and understanding of the product.
) describes some important differences
available from your local
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POINT I/O One-piece Terminal Bases 3
IMPORTANT
SHOCK HAZARD
BURN HAZARD
ATTENTION
Identifies information about practices or circumstances that can
lead to personal injury or death, property damage, or economic
loss. Attentions help you to identify a hazard, avoid a hazard and
recognize the consequences.
Labels may be located on or inside the equipment, for example, a
drive or motor, to alert people that dangerous voltage may be
present.
Labels may be located on or inside the equipment, for example, a
drive or motor, to alert people that surfaces may be dangerous
temperatures.
Environment and Enclosure
This equipment is intended for use in a Pollution Degree 2
industrial environment, in overvoltage Category II applications (as
defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft)
without derating.
This equipment is considered Group 1, Class A industrial
equipment according to IEC/CISPR 11. Without appropriate
precautions, there may be difficulties with electromagnetic
compatibility in residential and other environments due to
conducted and radiated disturbances.
This equipment is supplied as open-type equipment. It must be
mounted within an enclosure that is suitably designed for those
specific environmental conditions that will be present and
appropriately designed to prevent personal injury resulting from
accessibility to live parts. The enclosure must have suitable
flame-retardant properties to prevent or minimize the spread of
flame, complying with a flame spread rating of 5VA, V2, V1, V0 (or
equivalent) if non-metallic. The interior of the enclosure must be
accessible only by the use of a tool.
publication may contain additional information regarding specific
enclosure type ratings that are required to comply with certain
product safety certifications.
In addition to this publication, see:
• Industrial Automation Wiring and Grounding Guidelines,
• NEMA Standard 250 and IEC 60529, as applicable, for
Subsequent sections of this
Rockwell Automation publication
1770-4.1, for additional
installation requirements.
explanations of the degrees of protection provided by
different types of enclosure.
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4 POINT I/O One-piece Terminal Bases
ATTENTION
ATTENTION
ATTENTION
Prevent Electrostatic Discharge
This equipment is sensitive to electrostatic discharge, which
can cause internal damage and affect normal operation.
Follow these guidelines when you handle this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging
when not in use.
POINT I/O is grounded through the DIN rail to chassis ground.
Use zinc plated yellow-chromate steel DIN rail to assure
proper grounding.
The use of other DIN rail materials (for example, aluminum or
plastic) that can corrode, oxidize, or are poor conductors, can
result in improper or intermittent grounding.
Secure DIN rail to mounting surface approximately every
200 mm (7.8 in.) and use end-anchors appropriately.
Do not wire more than 2 conductors on any single terminal.
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POINT I/O One-piece Terminal Bases 5
Wiring Block
Mechanical
Keying
(Orange)
44047
1734-TOP and 1734-TOPS
DIN-rail Locking Screw (Orange)
Handle
Interlocking Side Pieces
44050
Wiring Block
DIN-rail Locking Screw (Orange)
Mechanical
Keying
(Orange)
Handle
Interlocking Side Pieces
Install a Base
To install a base on DIN rail, proceed as follows, referring to the figures to identify major parts
of the base.
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6 POINT I/O One-piece Terminal Bases
WARNING
DIN-rail locking screw is in
horizontal, locked position.
DIN-rail locking screw is in
vertical, unlocked position.
Refer to your I/O module user manual for keying information and informatin on how to
configure your module.
1. Position the base vertically above the installed units, such as an adapter, power
supply, or existing module.
2. Slide the base down, allowing the interlocking side pieces to engage the adjacent
installed unit.
3. Press firmly to seat the base on the DIN rail until the base snaps into place.
4. Verify that the DIN-rail locking screw is in a horizontal, locked position before
inserting an I/O module.
Remove a Base
Explosion Hazard
Do not disconnect or replace component unless power is
switched off or area is known to be nonhazardous. Do not
pull on the installed wiring to remove a terminal base. A
shock hazard exists if power is applied to the terminal base.
To remove a wiring b ase from t he DIN rai l, you must remove the module installed to the right of
the base, proceeding as follows.
1. Squeeze the module locking mechanism of the module to the right of the base,
pulling up to remove the module.
2. Turn the orange locking screw to a vertical position to unlock the base from the
DIN rail.
3. Slide the base up to release it from its mating units.
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Specifications
One-piece Terminal Bases -
1734-TOP, 1734-TOPS, 1734-TOP3, 1734-TOP3S
Attribute Value
Dimensions
(HxWxD),
Approx.
Weight,
Approx.
Wire Size
Category
Supply voltage
Supply power
Isolation
Volt age
Enclosure Type
Rating
Field Power
Bus Supply
Volt age
Terminal Base
Screw Torque
Terminal block
torque
(1)
Use this conductor category informat ion for planning conductor routing as described in Industrial
Automation Wiring and Grounding Guidelin es, publication 1770-4.1.
1734-TOP, 1734-TOPS 49 x 12 x 144 mm (1.93 x 0.47 x 5.67 in.)
1734-TOP3, 1734-TOP3S 49 x 12 x 168 mm (1.93 x 0.47 x 6.61 in.)
1734-TOP 63.8 g (2.25 oz), 1734-TOP3 79. 2 g (2.79 oz),
1734-TOPS 55.68 g (1.96 oz), 1734-TOP3 S 66.8 g (2.36 oz)
0.25... 2.5 mm² (22...14 AWG) solid or stranded copper wire rated at 75 °C
(167 °F ), or greater, 1.2 mm (3/64 in.) insulation max
Dependent on I/O module installed in term inal base
300V max terminal voltage
8A max terminal current
Capable of 240V (continuous), Reinforced Insu lation Type, or the lesser of the
installed module.
None (open-style)
28.8V DC, 120/240V AC
(1)
1734-TOP and 1734-TOP3 0.6 Nm (7 lb-in)
0.4Nm (3.5 lb-in) for 1734-TOP and 1734-TOP3 only
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Environmental Specifications
Attribute Value
Temperature，
operating
Temperature，
nonoperating
Relative humidity IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):
Shock, operating IEC 60068-2-27 (Test Ea, Unpackaged Shock): 30 g
Shock, nonoperating IEC 60068-2-27 (Test Ea, Unpackaged Shock): 50 g
Vibration IEC 60068-2-6 (Test Fc, Operating): 5 g @ 10…500 Hz
IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
-20…60 °C (-4…140 °F)
IEC 60068-2-1 (Test Ab, Unpackaged Nonoperating Cold),
IEC 60068-2-2 (Test Bb, Unpackaged Nonoperating Dry Heat),
IEC 60068-2-14 (Test Na, Unpackaged Nonoperating Thermal Shock):
-40…85 °C (-40…185 °F)
5...95% noncondensing
Certifications
Certification (when the
product is marked)
C-Tick Australian Radiocommunications Act, compliant
c-UR-us UL Recognized Component Industrial Contro l Equipment, certified
CE European Union 2004/108/EC EMC Directive, compliant with:
(1)
See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates,
and other certification details.
Value
(1)
with: AS/NZS CISPR 11; Industrial Emissions
for US and Canada. See UL File E65584.
EN 61326-1; Meas./Control/Lab., Industria l Requirements
EN 61000-6-2; Industrial Immunity
EN 61000-6-4; Industrial Emissions
EN 61131-2; Programmable Controllers (Clau se 8, Zone A & B)
European Union 2006/95/EC LVD, compliant with:
EN 61131-2; Programmable Controllers (Clau se 11).
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POINT I/O One-piece Terminal Bases 9
Notes:
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10 POINT I/O One-piece Terminal Bases
Notes:
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POINT I/O One-piece Terminal Bases 11
Notes:
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Allen-Bradley, POINT I/O, and Rockwell Automation are trademarks of Rockwell
Automation, Inc. Trademarks not belonging to Rockwell Automation are property
of their respective companies.
Publication 1734-IN028B-EN-P - April 2010 PN 75026
Supersedes Publication 1734-IN028A-EN-P - February 2006
Copyright © 2010 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A
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