Eaton MT3400T Molded Case Circuit Breaker Accessory Trip Unit Operating instructions

Eaton
Brand
Eaton
Model
MT3400T Molded Case Circuit Breaker Accessory Trip Unit
Type
Operating instructions

This manual is also suitable for

Eaton MT3400T Molded Case Circuit Breaker Accessory Trip Unit is an electronic trip unit that easily snaps onto the breaker to provide extra protection. It offers advanced features such as adjustable long-time and short-time pickup and delay, ground fault, and phase unbalance protection. This makes it ideal for applications where reliable and customizable protection is required, such as industrial facilities, commercial buildings, and data centers.

Eaton MT3400T Molded Case Circuit Breaker Accessory Trip Unit is an electronic trip unit that easily snaps onto the breaker to provide extra protection. It offers advanced features such as adjustable long-time and short-time pickup and delay, ground fault, and phase unbalance protection. This makes it ideal for applications where reliable and customizable protection is required, such as industrial facilities, commercial buildings, and data centers.

A new way for you to connect
Eaton’s StrandAble terminals allow you to connect nearly
any class of rigid or fine strand wire directly to the molded
case circuit breaker without the use of additional fittings.
This is a perfect solution when looking to save time when
assembling an electrical control or distribution panel.
The use of fine strand wire,
commonly called “welding or
locomotive cable”, has become
commonplace in the electrical
industry as it allows for easier
and quicker installations in tight
spaces. Most molded case
circuit breakers do not have
terminals that are UL® listed for
fine strand wire use. Standard
molded case circuit breaker
terminals are listed for class B
and C rigid wire by default in
accordance with UL 489 & 486.
Various sleeve style fittings can
be used to make fine strand
wire suitable for use in the
circuit breaker terminal, but not
all are UL listed, and some can
be quite expensive. Additionally,
the use of these fittings can
cause adverse circuit breaker
performance such as wire
pull-out during magnetic inter-
ruption, or loose connections
that manifest themselves in
nuisance tripping, arcing, or fire.
Eaton’s StrandAble terminals
now make it simple and easy,
and provide you a secure UL
listed connection for all common
rigid and fine strand wire. Table
1 outlines all wire classes
StrandAble is UL listed for as
well as common wire types in
those classes.
Features and benefits of
StrandAble terminals to
standard terminals
and fittings
• Ensured UL compliance
• Reduced wiring time and
cost as fittings do not need
to be applied
• Ultimate flexibility for
incoming customer
connections to the molded
case circuit breaker
Table 1. UL listed wire classes for StrandAble terminals
Wire class Common wire types
BPV/ RHH / RHW / THW / TW / XHHW / THHN THWN / USE-2 / CP
CMTW / THHN / THWN
DTopweld / Topflex / Flextel / Powerflex / Xtrem
GGPTM / SGT
HSIS / TEW / HYP / GPT / TGGT / MGT
IDLO / DLIH / SBC
KCopper Grounding Cable / Welding Cable / SOW / SJOW / STOW
/ TFF / TFN / TFFN
MWelding Cable / SO
For more information on Eaton’s StrandAble terminal
offering visit Eaton.com/circuitprotection or
call 1-877-ETN-CARE.
Eaton’s StrandAble offering pairs the industry’s most complete fine
strand lug offering with leading circuit protection technology.
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
© 2017 Eaton
All Rights Reserved
Printed in USA
Publication No. PA012021EN / VCG1780
June 2017
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latest product and support information.
StrandAble terminals
Molded case circuit breaker wiring terminals
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Eaton MT3400T Molded Case Circuit Breaker Accessory Trip Unit Operating instructions

Eaton
Brand
Eaton
Model
MT3400T Molded Case Circuit Breaker Accessory Trip Unit
Type
Operating instructions
This manual is also suitable for

Eaton MT3400T Molded Case Circuit Breaker Accessory Trip Unit is an electronic trip unit that easily snaps onto the breaker to provide extra protection. It offers advanced features such as adjustable long-time and short-time pickup and delay, ground fault, and phase unbalance protection. This makes it ideal for applications where reliable and customizable protection is required, such as industrial facilities, commercial buildings, and data centers.

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