Wenzhou Kinee Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of ac contactor motor magnetic contactor in China. We warmly welcome you to wholesale ac contactor motor magnetic contactor for sale here from our factory. All customized products are with high quality and competitive price.
Product Introduction
KINEE's KNX3 series AC Contactor Motor Magnetic Contactor features a novel appearance and compact structure, setting it apart from traditional devices in both aesthetics and functionality.
As a premium AC Contactor Motor Magnetic Contactor, this series is engineered to deliver reliable performance in a wide range of industrial control scenarios. It is primarily used for frequent starting and controlling of AC motors, enabling smooth and efficient motor operation even under high-cycle conditions.
In addition, this AC Contactor Motor Magnetic Contactor excels in remote connection and disconnection of circuits, providing flexible and safe control over power distribution systems.
When combined with appropriate thermal overload relays, the KNX3 series AC Contactor Motor Magnetic Contactor can form a complete and dependable electromagnetic starter, offering overload protection and enhancing system durability.
Fully compliant with international standards IEC 60947-1 and IEC 60947-4-1, this AC Contactor Motor Magnetic Contactor is an ideal choice for applications requiring both high switching frequency and long service life, such as HVAC systems, conveyor lines, pumping stations, and industrial automation equipment.

Technical Parameters
Continued from Table 1
|
Model |
KNX3-0911 |
KNX3-1211 |
KNX3-1811 |
KNX3-2511 |
KNX3-3211 |
||
|
Main circuit characteristics |
|||||||
|
Poles |
3P |
||||||
|
Rated insulation voltage (Ui) |
V |
690V |
|||||
|
Rated operating voltage (Ue) |
V |
380/400, 660/690 |
|||||
|
Conventional heating current (Ith), AC-1 rated operating current |
20 |
20 |
32 |
40 |
50 |
||
|
Rated operating current (Ie) |
AC-3,380/400V |
A |
9 |
12 |
18 |
25 |
32 |
|
AC-3,660/690V |
A |
6.6 |
8.9 |
12 |
18 |
22 |
|
|
AC-4,380/400V |
A |
3.5 |
5 |
7.7 |
8.5 |
12 |
|
|
AC-4,660/690V |
A |
1.5 |
2 |
3.8 |
4.4 |
7.5 |
|
|
Rated operating power (Pe) |
AC-3 380/400V |
kW |
4 |
5.5 |
7.5 |
11 |
15 |
|
AC-3 660/690V |
kW |
5.5 |
7.5 |
10 |
15 |
18.5 |
|
|
AC-4 380/400V |
kW |
1.5 |
2.2 |
3.3 |
4 |
5.4 |
|
|
AC-4 660/690V |
kW |
1.1 |
1.5 |
3 |
3.7 |
5.5 |
|
|
Mechanical life |
10,000 times |
1200 |
1000 |
||||
|
Electrical life |
AC-3 |
10,000 times |
110 |
90 |
|||
|
AC-4 |
10,000 times |
22 |
22 |
||||
|
Operating frequency |
AC-3 |
times/hour |
1200 |
600 |
|||
|
AC-4 |
times/hour |
300 |
300 |
||||
|
Main circuit terminal wiring capability |
|||||||
|
Soft wire |
1 wire |
mm² |
1...4 |
1.5...6 |
|||
|
Without terminal blocks |
2 wires |
mm² |
1.4 |
1.5...6 |
|||
|
Soft wire |
1 wire |
mm² |
1.4 |
1...6 |
|||
|
With terminal blocks |
2 wires |
mm² |
1.2...5 |
1...4 |
|||
|
Hard wire |
1 wire |
mm² |
1...4 |
1.5...6 |
1.5…10 |
||
|
Without terminal blocks |
2 wires |
mm² |
1...4 |
1.5… |
|||
|
Tightening torque |
N·m |
1.2 |
1.8 |
||||
|
Coil |
|||||||
|
Rated control circuit voltage (Us) |
50Hz |
V |
24,36,48,110,127,220/230,240,380/400,415,440 |
||||
|
50/60H |
V |
24,36,48,110,127,220/230,240,380/400,415,440 |
|||||
|
Allowable control loop voltage |
Run |
V |
Installation tilt angle ±22.5°: 85%~110% Us; Installation tilt angle ±5°: 70%~120% |
||||
|
Release |
V |
Installation tilt angle ±22.5°: 20%~75% Us; Installation tilt angle ±5°: 20%~65% |
|||||
|
Coil power consumption |
Attract |
VA |
60 |
70 |
|||
|
Hold |
VA |
6-9.5 |
6-9.5 |
||||
|
Power Consumption |
W |
1-3 |
1-3 |
||||
|
Auxiliary contact |
|||||||
|
Contact Specifications |
A |
11 |
|||||
|
Agreed Heating Current Ith |
A |
10 |
|||||
|
Rated operating voltage (Ue) |
AC |
A |
380 |
||||
|
DC |
V |
220 |
|||||
|
Rated control capacity |
AC-15 |
VA |
360 |
||||
|
DC-13 |
W |
33 |
|||||
|
Model |
KNX3-3811 |
KNX3-4011 |
KNX3-5011 |
KNX3-6511 |
KNX3-8011 |
KNX3-9511 |
||
|
Main circuit characteristics |
||||||||
|
Poles |
3P |
|||||||
|
Rated insulation voltage (Ui) |
V |
690V |
||||||
|
Rated operating voltage (Ue) |
V |
380/400, 660/690 |
||||||
|
Conventional heating current (Ith), AC-1 rated operating current |
50 |
50 |
60 |
80 |
125 |
125 |
||
|
Rated operating current (Ie) |
AC-3,380/400V |
A |
38 |
40 |
50 |
65 |
80 |
95 |
|
AC-3,660/690V |
A |
22 |
34 |
39 |
42 |
49 |
49 |
|
|
AC-4,380/400V |
A |
14 |
18.5 |
24 |
28 |
37 |
44 |
|
|
AC-4,660/690V |
A |
8.9 |
9 |
12 |
14 |
17.3 |
21.3 |
|
|
Rated operating power (Pe) |
AC-3 380/400V |
kW |
18.5 |
18.5 |
30 |
33 |
37 |
45 |
|
AC-3 660/690V |
kW |
18.5 |
30 |
33 |
37 |
45 |
45 |
|
|
AC-4 380/400V |
kW |
5.5 |
7.5 |
11 |
15 |
18.5 |
22 |
|
|
AC-4 660/690V |
kW |
6 |
7.5 |
10 |
11 |
15 |
18.5 |
|
|
Mechanical life |
10,000 times |
1000 |
900 |
650 |
||||
|
Electrical life |
AC-3 |
10,000 times |
90 |
65 |
||||
|
AC-4 |
10,000 times |
22 |
17 |
11 |
||||
|
Operating frequency |
AC-3 |
times/hour |
600 |
|||||
|
AC-4 |
times/hour |
300 |
||||||
|
Main circuit terminal wiring capability |
||||||||
|
Soft wire |
1 wire |
mm² |
1.5...6 |
2.5...25 |
4...50 |
|||
|
Without terminal blocks |
2 wires |
mm² |
1.5...6 |
2.5...16 |
4...25 |
|||
|
Soft wire |
1 wire |
mm² |
1...6 |
2.5...25 |
4...50 |
|||
|
With terminal blocks |
2 wires |
mm² |
1...4 |
2.5...10 |
4...16 |
|||
|
Hard wire |
1 wire |
mm² |
1.5...10 |
2.5...25 |
4...50 |
|||
|
Without terminal blocks |
2 wires |
mm² |
1.5...10 |
2.5...10 |
4...25 |
|||
|
Tightening torque |
N·m |
1.8 |
5 |
9 |
||||
|
Coil |
||||||||
|
Rated control circuit voltage (Us) |
50Hz |
V |
24,36,48,110,127,220/230,240,380/400,415,440 |
|||||
|
50/60H |
V |
24,36,48,110,127,220/230,240,380/400,415,440 |
||||||
|
Allowable control loop voltage |
Run |
V |
Installation tilt angle ±22.5°: 85%~110% Us; Installation tilt angle ±5°: 70%~120% |
|||||
|
Release |
V |
Installation tilt angle ±22.5°: 20%~75% Us; Installation tilt angle ±5°: 20%~65% |
||||||
|
Coil power consumption |
Attract |
VA |
70 |
200 |
200 |
|||
|
Hold |
VA |
6-9.5 |
15-20 |
15-20 |
||||
|
Power Consumption |
W |
1-3 |
6-10 |
6-10 |
||||
|
Auxiliary contact |
||||||||
|
Contact Specifications |
A |
11 |
||||||
|
Agreed Heating Current Ith |
A |
10 |
||||||
|
Rated operating voltage (Ue) |
AC |
A |
380 |
|||||
|
DC |
V |
220 |
||||||
|
Rated control capacity |
AC-15 |
VA |
360 |
|||||
|
DC-13 |
W |
33 |
||||||
Working conditions and installation conditions
|
Category |
Working and Installation Conditions |
|
Installation Category |
III |
|
Pollution Degree |
3 |
|
Certification Marks |
CE, CB, CCC, TUV |
|
Degree of Protection of Enclosure |
IP20 for KNX3 0911~3811; IP10 for KNX3 4011~9511 |
|
Ambient Air Temperature |
Limit operating temperature: -35°C to +70°C; Normal operating temperature: -5°C to +40°C, with average value not exceeding +35°C within 24 hours. If used outside normal temperature range, refer to "Instructions for Use in Abnormal Environments". |
|
Altitude |
Not exceeding 2000m |
|
Ambient Air Humidity |
Relative humidity not exceeding 50% at max temperature of +70°C. Higher relative humidity is allowed at lower temperatures, e.g., 90% at +20°C. Special measures shall be taken against occasional condensation due to humidity changes. |
|
Installation Conditions |
Inclination between mounting surface and vertical plane shall not exceed ±5° |
|
Shock and Vibration |
Product shall be installed and used in places without significant rocking, shock, or vibration |
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