Cut Sheet
Volume 7—Logic Control, Operator Interface and Connectivity Solutions CA08100008E—July 2014 www.eaton.com V7-T8-111
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8.2
Terminal Blocks, Fuse Blocks and Fuse Holders
NEMA
TB Series Terminal Blocks, Modular
Contents
Description Page
C381 Series Terminal Blocks, Rail Mounted . . . . . V7-T8-107
TB Series Terminal Blocks, Modular
Product Selection . . . . . . . . . . . . . . . . . . . . . . . V7-T8-112
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . V7-T8-113
Technical Data and Specifications . . . . . . . . . . V7-T8-114
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . V7-T8-115
TB Series Terminal Blocks, Modular
Product Description
TBA and TBD modular terminal
blocks are designed to
conserve space, while
allowing maximum flexibility
and ease of installation.
Available as one-, two- and
three-pole circuits, simple
and uniform installation is
possible because their
design is based on 5/8 in
(15.9 mm) modules. Standard
blocks are white nylon.
Breathing Action
Clamping Collar
The unique design of the
clamping collar permits the
collar to breathe as the wire
expands and contracts,
maintaining a constant
and permanent clamping
pressure. This eliminates
loose connections resulting
from the gradual flattening
of conductors and joint
deterioration caused by
heating and cooling cycles.
Features
Blocks—Design Features
●
Compact design permits
mounting 48–600V or
90–300V terminals per foot
●
Fully shielded construction,
600V spacings
●
Nylon construction
provides anti-tracking and
impact resistance
●
TBA types are available
in rail mounted, base
mounted and power
distribution types
●
Terminal blocks easily snap
on or off mounting rails;
not necessary to disturb
adjacent units
●
No end pieces or backing
plates are needed when
rail mounting
●
A 12 circuit subminiature
blocks, rated 20A at 300V,
is available for “high
density” applications
●
Popular blocks are also
available in dual mount for
use with standard TBA or
35 mm DIN rails
Terminals—Design Features
●
Insulated walls of lug
guide wire into lug
●
Blocks are shipped
with clamping screw
backed out
●
Constant locking torque
keeps terminal screws in
position
●
Terminal screws are captive;
cannot be lost in shipment
or handling
●
Hardened stainless steel
clamping collar eliminates
stripped threads
●
Large opening in clamping
collar accommodates
oversized conductors;
smallest collar will accept
three 14 AWG stranded
conductors
Standards and Certifications
●
UL recognized: File No.
E56797
●
CE approved