Schneider LT4760BA Bedienungsanleitung

Schneider Nicht kategorisiert LT4760BA

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Seite 1/4

W9 1636671 01 A03

02 - 2011

1/4

www.schneider-electric.com

LT47

0.5 - 6 A

Type

LT 4706

LT 4730

LT 4760

Relay setting range

3 - 30 A

5 - 60 A

Operating and Function

b LT47, solid state overload relay, compares motor

current with preset load current threshold (LOAD).

b Motor currents are monitored through two internal

current transformers.

b CT hole size is 12 mm in diameter. Please don't

allow excessive force on CTs.

b D-Time counts down and is only available for motor starting.

During steady state, if motor current is greater than current

setting(overloaded), LT47 switches its contacts after O-Time.

b For shear-pin (mechanical shock) protection, set O-Time knob

to its minimum in order to trip in 0.2-0.3 s.

DANGER

HAZARD OF ELECTRIC SHOCK,

EXPLOSION, OR ARC FLASH

Disconnect all power before servicing

equipment.

Failure to follow these instructions

will result in death or serious injury.

PLEASE NOTE:

b Electrical equipment should be installed, operated,

serviced, and maintained only by qualied personnel.

b No responsibility is assumed by Schneider Electric

for any consequences arising out of the use of this

material.

b This document is also available in French, Spanish,

Italian, German, and Chinese for download on our

website at www.schneider-electric.com.

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W9 1636671 01 A03

in.

TEST/STOP

RESET

O-TIME

(s)

LOAD

(A)

D-TIME

(s)

A1 A2 97 NO NC98 95 96

Ø 0.47

Ø 12

6 x M3.5

50.8

2.00

19.5

0.77

PULLPULL

Ø0.18

Ø4.5

2.01

2.48

2.20

30.4

1.20

20.4

0.80

77,2

3.04

62,2

2.45

A1 A2 97 NO NC98 95 96

Auto Reset type

D-Time

Load

O-Time

R-Time

O-Time

A1 A2 97 NO NC98 95 96

O

Condition

LED Signal

Green LED Red LED

Power on

Starting

Steady state

Overloading

Trip

Flickering

Combined signals from red and green LEDs indicate

motor status including trip cause.

Standard type (Manual / Electrical reset)

Test/Stop

Reset

Green LED

(LED OK)

Red LED

(LED OL)

Test/Stop

Reset

Green LED

(LED OK)

Red LED

(LED OL)

A1 A2 97 NO NC98 95 96

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W9 1636671 01 A03

When motor current is less than minimum current setting

(< 0.5A), looping conductors through CT holes can

be used. The following table explains number of looping

for low current setting.

L1 L2

E------

E---

Tr.

FUSE

MCCB

OFF

(RESET)

START

KM1

LT47

TEST/STOP

RESET

Straight-through-Wiring

Line

Load

Line

Load

Looping Option (1-Loop)

When putting 2 ring lug in the same terminal,

plug one after the other as shown in gure.

Note:

b LT47 may be inuenced by the

harmonics on the control power.

b The control power should be

supplied via the isolated transformer.

b Output: Normally energized.

No. of Loops

LT4706

Looping

Option

Time of Passing

Current Set. Range (A)

0.50 - 6.0 A

0.25 - 3.0 A

0.17 - 2.0 A

0.12 - 1.5 A

0.10 - 1.2 A

Produktspezifikationen

Marke:	Schneider
Kategorie:	Nicht kategorisiert
Modell:	LT4760BA
Breite:	71 mm
Tiefe:	77.2 mm
Gewicht:	192 g
Internationale Schutzart (IP-Code):	IP20
Höhe:	70.3 mm
Betriebstemperatur:	-25 - 60 °C
Verpackungsbreite:	76 mm
Verpackungstiefe:	83 mm
Verpackungshöhe:	66 mm
Paketgewicht:	192 g
Temperaturbereich bei Lagerung:	-30 - 80 °C
Eingangsfrequenz:	50/60 Hz
Gewährleistungsfrist:	1.5 Jahr(e)
Bemessungsstoßspannungsfestigkeit (Uimp):	6 kV
Nennisolierspannung:	600 V