|
LTNS
320/450
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 |
N° |
SK11 |
[KG] |
[ms] |
[ms] |
[mm] |
[mm] |
[mm] |
[mm] |
[mm] |
[mm] |
[mm] |
[mm] |
[mm] |
| 320 |
1 |
4 |
12 |
160 |
35 |
105 |
260 |
25 |
350 |
55 |
232 |
13 |
213 |
- |
| 2 |
4 |
17 |
160 |
35 |
186 |
260 |
25 |
350 |
55 |
232 |
13 |
213 |
91 |
| 3 |
4 |
24 |
160 |
35 |
277 |
260 |
25 |
350 |
55 |
232 |
13 |
213 |
91 |
| 450 |
1 |
4 |
13 |
160 |
35 |
105 |
260 |
20 |
360 |
55 |
232 |
13 |
213 |
- |
| 2 |
4 |
18 |
160 |
35 |
186 |
260 |
20 |
360 |
55 |
232 |
13 |
213 |
91 |
| 3 |
4 |
25 |
160 |
35 |
277 |
260 |
20 |
360 |
55 |
232 |
13 |
213 |
91 |
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 |
| 320 |
1000 |
320 |
7000 |
800 |
1500 |
600 |
1200 |
400 |
800 |
| 450 |
1000 |
450 |
8000 |
1300 |
2500 |
1000 |
1800 |
600 |
1200 |
|
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 |
| 320 |
2500 |
1800 |
1200 |
200 |
180 |
160 |
| 450 |
4000 |
2500 |
1800 |
280 |
250 |
200 |
* With
ceramic arc chutes
MOUNTING DIMENSIONS
|
TYPE
LTNS |
POLES |
a |
b |
c |
d |
e |
f |
g |
h |
MOUNTING PLATE |
|
320/450 |
1 |
230 |
90 |
15 |
60 |
15 |
60 |
12,5 |
9 |
 |
| 2 |
230 |
180 |
15 |
150 |
15 |
150 |
12,5 |
9 |
| 3 |
230 |
272 |
15 |
242 |
15 |
242 |
12,5 |
9 |
CLEARANCES FROM ADJACENT PARTS*
|
TYPE |
METALLIC
EARTHED |
INSULATED |
MOUNTING POSITION** |
| LTNS |
X |
Y |
X |
Y |
 |
| 320 |
100 |
100 |
60 |
60 |
| 450 |
120 |
120 |
80 |
80 |
* 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 |
320/450 |
| POLES |
1 |
2 |
3* |
| [W] |
40 |
40 |
90 |
MINIMUM MOUNTING
DISTANCES
Dimensions with two blocks
of auxiliary contacts
|
