CHINT NCH8-20 4P User Manual

1
2
01
NCH8 series modular AC contactor is mainly used in AC 50Hz (60Hz)
power systems with rated operating voltage up to 400V and rated operating
current up to 63A. The product is used as remote switch and control circuit
under AC-1/AC-7a application category (non-inductive or low inductive
load/resistance furnace,domestic appliance and low inductive load of similar
applications). The contactor can also be used for AC-7b application category
(household motor load), but it must be derated.
The contactor is not designed to break short circuit current, therefore it
should be used with a matching short circuit protector.
Purpose of Use and Range of Application
Main Technical Parameters and Performance
Table 1 Main parameters and technical
performance index of the contactor
Model
Rated insulation
voltage Ui(V)
Rated impulse withstand
voltage Uimp(kV)
Conventional thermal
current Ith(A)
NCH8
-20 2P
NCH8
-20 4P
NCH8
-25 2P
NCH8
-25 4P
NCH8
-40 2P
NCH8
-40 4P
NCH8
-63 2P
NCH8
-63 4P
Rated
operating
current Ie(A)
500
4
25 63
AC-1/AC-7a
AC-7b
20
9
25
9
40
15
63
20
Rated voltage Ue(V)
230 400 230 400 230 400 230 400
Operation
frequency
(time/h)
AC-1/AC-7a
AC-7b
360
180360
Electrical life
(10000 times)
AC-1/AC-7a
10
Mechanical life
(10000 times)
100

CHINT NCH8-20 4P Specifications

General

Brand	CHINT
Model	NCH8-20 4P
Category	Industrial Electrical
Language	English