TL-100NJ datasheet(2/4 Pages) ETC

Teilenummer	TL-100NJ

Bauteilbeschribung	TemBreak Plus For High Demand Applications Ics=Icu=50kA & 85kA, Selectivity with 3:1 MCCB ratio

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Powerful interrupting Capacities

Limitation of System Damage

Unique Contact Structure

Selectivity Enhanced Switchgear

The majority of distribution systems are

designed to an ultimate short circuit rating

(Icu). An Icu rated MCCB provides the

optimum protection in terms of safe and

economical selection.

Certain applications may require protection

which is designed to the more onerous

service short circuit rating (Ics).

Terasaki's TemBreak Plus range can provide

a wide choice of MCCBs with superior Ics

ratings up to 85kA at 440V AC.

Terasaki's TemBreak Plus MCCBs achieve

this exceptional current limiting performance

by utilising a unique contact structure which

we call the Fast Break Mechanism (FBM).

The U-Shaped contact of this mechanism

assists in the electromagnetic repulsion of the

contact tips for fast arc extinction.

The 50kA PowerBreaker Series uses one

FBM per pole whilst the LimitorBreaker Series

uses two FBM per pole to achieve its rating of

85kA.

The need for a continuous and reliable power

supply

places

increased

emphasis

on

selectivity requirements in today's electrical

distribution system.

The Selectivity Series utilises microprocessor

based protection, giving enhanced selectivity.

This ensures a 3:1 ratio between the

upstream and downstream MCCBs. For

further details please refer to the selectivity

table on page four of this leaflet.

kA

Conventional MCCB

TemBreak Plus

50

9

I peak

2

4

6

8

10

I2

I1

0.1

0.2

0.3

0.4

IG

5

10

15

20

30

T1

0.1

0.15

0.2

0.25

0.3

SEC

T2

0.1

0.2

0.3

0.4

0.8

SEC

TG

LONG TIME

SHORT TIME

INSTANTANEOUS GROUND FAULT

TIME

SETTING

PICK UP

SHORT TIME I2t

OFF ON

TEST IN

SEC

at 6 x I1

RATED CUR. (A)

T

I

IG

I1

T1

I2

T2

I3

TG

BASE CUR.

A

IC

x In

0.63

0.8 1.0

0.8

0.85

0.9

0.95

1.0

CURR.

SETTING

xI0

x I0

X In

T2 SEC

at 10 x I0

1250

3

6

9

12

x I0

I3

CT RATED CURRENT

In

A

During a fault condition, a circuit breaker with

excellent current limiting ability such as

TemBreak Plus, can substantially reduce

damage to the electrical system and thus

minimise downtime.

This current limiting feature reduces the peak

let through current (Ipeak) and energy let

through (I t) during fault conditions.

2

Icu = 50kA

Ics = 25kA

XH125NJ

Icu = 50kA

Ics = 50kA

XH125PJ

Ics = 85kA

Icu = 85kA

TL100NJ

Plus

t

Innovators In Protection Technology

I t

2

I t

2

Icu=o-co

2 Full Short Circuits

Ics=o-co-co

3 Full Short Circuits

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