LTNS 1000/1250


MECHANICAL CHARACTERISTICS

TYPE

POLES

MAX.
AUX.
BLOCKS

TYPE

WEIGHT

OPERATION TIME

OVERALL DIMENSIONS

CABLE TERMINALS

CLOSING

OPENING

A B C D R S V M I
LTNS SK11 [KG] [ms] [ms] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm]
1000 1 4 22 240 30 125 350 50 459 69.5 362 11.5 266.5 -
2 4 40 280 50 230 350 50 459 69.5 362 11.5 266.5 110
3 4 58 280 50 340 350 50 459 69.5 362 11.5 266.5 110
1250 1 4 24 240 30 125 350 50 459 69.5 362 11.5 266.5 -
2 4 43 280 50 230 350 50 459 69.5 362 11.5 266.5 110
3 4 60 280 50 340 350 50 459 69.5 362 11.5 266.5 110

ELECTRICAL CHARACTERISTICS

TYPE

LTNS

MAX V

[V]

ITH

[A]

MAKING

CAPACITY

Ich [A]

D.C. BREAKING CAPACITY [A]

L/R = 15ms

440V 750V 1000V
1P 2P 1P 2P 1P 2P
1000 1000 1100 16000 4000 7000 2500 5000 1800 3500
1250 1000 1300 20000 5000 9000 3500 7000 2000 4000

TYPE

A.C. BREAKING CAPACITY [A]
COS j = 0.5

MAX. OPERATIONAL CURRENT
FOR A.C. AND D.C. MOTORS

LTNS 440V 750V 1000V A.C. 2-3 D.C. 2-3 D.C. 4.5
1000 10000 6000 5000 750 750 600
1250 12500 8000 6000 900 900 800
* With ceramic arc chutes

MOUNTING DIMENSIONS

TYPE

LTNS

POLES

a b c d e f g h

MOUNTING PLATE

1000/1250

1 275 100 15 70 15 70 15 11
2 275 210 15 180 15 180 15 11
3 275 320 15 190 15 290 15 11

CLEARANCES FROM ADJACENT PARTS*

TYPE

METALLIC
EARTHED

INSULATED

MOUNTING POSITION**

LTNS X Y X Y
1000 180 180 120 120
1250 200 200 120 120
* Clearances for nominal breaking capacity
** For horizontal mounting contact our
tecnical department

AUXILIARY CONTACTS RAINGS FOR 10^6 OPERATIONS

UTILIZATION CATEGORY

AC11 V- 48 110 220 380

AUXILIARY CONTACTS

I [A] 8 6 5 3

UTILIZATION CATEGORY

DC11 V= 24 48 110 250

LEFT

RIGHT

RESISTIVE LOAD

- I [A] 8 6 5 3

INDUCTIVE LOAD

15 ms I [A] 6 4 3 1.5

INDUCTIVE LOAD

300 ms I [A] 2.5 1.5 0.8 0.25

COIL CONSUMPTION FOR LTN V/S CONTACTORS

TYPE 1000/1250
POLES 1 2 3*
[W] 60 80 150

MINIMUM MOUNTING DISTANCES

Dimensions with two blocks of auxiliary contacts

General characteristics  | |LTNS 60/125| | LTNS 320/450 | LTNS 650/800|
Information, Specifications, Software & Graphics supplied by Microelettrica Scientifica.


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