Wenzhou Kinee Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of thermomagnetic motor protection circuit breaker in China. We warmly welcome you to wholesale thermomagnetic motor protection circuit breaker for sale here from our factory. All customized products are with high quality and competitive price.
Product Introduction
The KNV2P series rotary thermomagnetic motor protection circuit breaker is specifically designed for electric motors and is used in AC 50/60Hz circuits with a rated voltage ≤690V.
This thermomagnetic motor protection circuit breaker provides overload, short circuit, and phase loss protection, with a setting current range from 0.1A to 32A. As a thermomagnetic motor protection circuit breaker, it is suitable for the starting and protection of three-phase asynchronous motors, industrial motors such as water pumps, fans, and machine tools, preventing false tripping due to 5–7 times the starting current.
This thermomagnetic motor protection circuit breaker also supports DIN rail mounting and features manual on/off operation and fault trip indication.
Technical Parameters
|
Parameter |
Standard |
Unit |
Value |
|
Model |
KNV2P |
||
|
Utilization Category |
IEC947-2 |
A |
|
|
IEC947-4-1 |
AC-3 |
||
|
Rated Operational Voltage (Ue) |
IEC947-2 |
V |
690 |
|
Rated Insulation Voltage (Ui) |
IEC947-2 |
V |
690 |
|
Rated Operational Frequency |
IEC947-2 |
Hz |
50/60 |
|
Rated Impulse Withstand Voltage (Uimp) |
IEC947-2 |
kV |
6 |
|
Total Power Dissipation per Pole |
W |
2.5 |
|
|
Mechanical life (C.O.: Closing/Opening) |
C.O. |
100000 |
|
|
Electrical life of AC-3 class loads |
440V in/2 |
C.O. |
100000 |
|
440V in |
C.O. |
- |
|
|
Load Level (Max. Operating Rate) |
C.O./h |
25 |
|
|
Max. Conventional Thermal Current |
IEC947-4-1 |
A |
0.16...32 |
|
Rated Load |
IEC947-4-1 |
Continuous load |
Selection Table For Circuit Breakers For Motor Protection
|
Type |
Standard rated power of 50/60 Hz three-phase motors in category AC-3 |
Adjustment range |
|||||
|
220V |
380V |
415V |
440V |
500V |
660V |
||
|
kW |
kW |
kW |
kW |
kW |
kW |
||
|
KNV2PM01/RS01 |
- |
- |
- |
- |
- |
- |
0.1-0.16 |
|
KNV2PM02/RS02 |
- |
- |
- |
- |
- |
- |
0.16-0.25 |
|
KNV2PM03/RS03 |
- |
- |
- |
- |
- |
- |
0.25-0.4 |
|
KNV2PM04/RS04 |
- |
- |
- |
- |
- |
0.37 |
0.4-0.63 |
|
KNV2PM05/RS05 |
- |
- |
- |
0.37 |
0.37 |
0.55 |
0.63-1 |
|
KNV2PM06/RS06 |
- |
0.37 |
- |
0.55 |
0.75 |
1.1 |
1.1-1.6 |
|
KNV2PM07/RS07 |
0.37 |
0.75 |
0.75 |
1.1 |
1.1 |
1.5 |
1.6-2.5 |
|
KNV2PM08/RS08 |
0.75 |
1.5 |
1.5 |
1.5 |
2.2 |
3 |
2.5-4 |
|
KNV2PM10/RS10 |
1.1 |
2.5 |
2.2 |
3 |
3.7 |
4 |
4-6.3 |
|
KNV2PM14/RS14 |
2.2 |
4 |
4 |
4 |
5.5 |
7.5 |
6-10 |
|
KNV2PM16/RS16 |
3 |
5.5 |
5.5 |
7.5 |
7.5 |
9 |
9-14 |
|
KNV2PM20/RS20 |
4 |
7.5 |
9 |
9 |
9 |
11 |
13-18 |
|
KNV2PM21/RS21 |
5.5 |
11 |
11 |
11 |
11 |
15 |
17-23 |
|
KNV2PM22/RS22 |
5.5 |
11 |
11 |
11 |
15 |
18.5 |
20-25 |
|
KNV2PM32/RS32 |
7.5 |
15 |
15 |
15 |
18.5 |
26 |
24-32 |
|
KNV3M06 |
- |
0.37 |
- |
0.55 |
0.75 |
1.1 |
1.1-1.6 |
|
KNV3M07 |
0.37 |
0.75 |
1.1 |
1.1 |
1.1 |
1.5 |
1.6-2.5 |
|
KNV3M08 |
0.75 |
1.5 |
1.5 |
1.5 |
2.2 |
3 |
2.5-4 |
|
KNV3M10 |
1.1 |
2.2 |
2.2 |
3 |
3.7 |
4 |
4-6 |
|
KNV3M14 |
2.2 |
4 |
4 |
4 |
5.5 |
7.5 |
6-10 |
|
KNV3M20 |
4 |
7.5 |
7.5 |
7.5 |
10 |
11 |
10-16 |
|
KNV3M25 |
5.5 |
11 |
11 |
11 |
15 |
18.5 |
16-25 |
|
KNV3M40 |
11 |
18.5 |
18.5 |
22 |
25 |
33 |
15-40 |
|
KNV3M63 |
15 |
30 |
33 |
33 |
40 |
55 |
40-63 |
|
KNV3M80 |
22 |
40 |
45 |
45 |
55 |
63 |
56-80 |
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