Wenzhou Kinee Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of isolated dual power automatic transfer switch in China. We warmly welcome you to wholesale isolated dual power automatic transfer switch for sale here from our factory. All customized products are with high quality and competitive price.
Product Introduction
The KNS1 series dual-power automatic transfer switch is mainly used in AC 50Hz power distribution or generator networks with a rated voltage of AC400V, operating voltage of 220V, and rated current from 16A to 3200A, for switching between primary and backup power sources or mutual backup power, as well as for load switching between mains power and generator sets. As an isolated dual power automatic transfer switch, it ensures safe disconnection and isolation during maintenance. This isolated dual power automatic transfer switch can also be used for infrequent circuit connection and disconnection, and for line isolation.
The product is widely used in power transmission and distribution systems and automation systems in critical power supply locations where power outages are unacceptable, such as fire protection facilities, hospitals, banks, and high-rise buildings. With its reliable performance, this isolated dual power automatic transfer switch guarantees uninterrupted power supply in these demanding environments.

Performance Characteristics
- Contacts and Mechanism: Double-row composite contacts, horizontal pull mechanism, micro-motor pre-energy storage, and microelectronic control, achieving near-zero arc flash (no arc extinguishing hood)
- Interlocking and Safety: Employs reliable mechanical and electrical interlocks; the actuator is an independent load disconnect switch, ensuring safe and reliable operation.
- Zero-crossing Technology: In emergencies, it can be forcibly zeroed (simultaneously cutting off two power supplies), meeting fire-fighting linkage requirements.
- Drive Method: The load disconnect switch switching is driven by a single motor, ensuring reliable, smooth, and fast switching.
- Energy-Saving Design: The operator drive motor only carries current during switching; steady-state operation requires no power supply, resulting in significant energy savings.
- Mechanical Interlocking: Ensures reliable operation of both primary and backup power supplies without interference.
- Indication and Isolation: Features clear on/off position indication and padlock functions, reliably isolating the power supply from the load.
- Performance Indicators: Excellent safety performance, high degree of automation, high reliability, and a service life exceeding 8000 cycles.
- Control Technology: Mechatronics design ensures accurate, flexible, and smooth switching; employs internationally advanced logic control technology, providing strong anti-interference capabilities and eliminating external interference.
- Operating States: Three stable states-main power on, backup power off; main power off, backup power on; both main and backup power off (I-O-II).
- Installation Method: Easy installation; control circuit uses plug-in terminal connections.
- Operating Functions: Four functions-emergency manual operation, electric remote control operation, emergency disconnection operation during automatic control, and automatic control operation.
Parameter
|
Item |
Description |
|
Control Device |
Built-in controller |
|
Product Structure |
Small size, high current capacity, simple structure, integrated ATS |
|
Features |
Fast switching speed, low failure rate, easy maintenance, reliable performance |
|
Wiring Method |
Front-connected wiring |
|
Transfer Mode |
Mains to mains, mains to generator, auto transfer and auto restore |
|
Product Frame Sizes |
100, 160, 250, 400, 630, 1000, 1250, 1600, 2000, 2500, 3200 |
|
Product Current Ratings |
20, 32, 40, 63, 80, 100, 125, 160, 200, 225, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000, 2500, 3200A |
|
Product Type |
Load switch type |
|
Number of Poles |
3, 4 |
|
Product Standard |
GB/T14048.11-2008 |
|
ATSE |
PC class |
Electrical And Mechanical Properties
|
Rated Current |
20A |
40A |
63A |
80A |
100A |
125A |
160A |
250A |
400A |
630A |
800A |
1000A |
1250A |
1600A |
|
|
Rated Insulation Voltage Ui |
750V |
1000V |
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|
Rated Impulse Withstand Voltage Uimp |
8kV |
12kV |
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|
Rated Operating Voltage Ue |
AC400V |
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|
Rated Operating Current Ie |
AC-31A |
20A |
40A |
63A |
80A |
100A |
125A |
160A |
250A |
400A |
630A |
800A |
1000A |
1250A |
1600A |
|
AC-35A |
20A |
40A |
63A |
80A |
100A |
125A |
160A |
250A |
400A |
630A |
800A |
1000A |
1000A |
1600A |
|
|
AC-33A |
20A |
40A |
63A |
80A |
100A |
125A |
160A |
250A |
400A |
400A |
630A |
800A |
800A |
1000A |
|
|
Rated Making Capacity |
10Ie |
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|
Rated Breaking Capacity |
8Ie |
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|
Rated Limited Short-circuit Current Is |
50kA |
70kA |
100kA |
120kA |
|||||||||||
|
Rated Short-time Withstand Current Is |
7kA |
9kA |
13kA |
26kA |
50kA |
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|
Transfer Time I-II or II-I |
0.45s |
0.6s |
1.2s |
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|
Control Voltage |
DC24V,48V,110V AC220V |
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|
Motor energy consumption |
|||||||||||||||
|
Rated power |
Startup |
300W |
325W |
335W |
400W |
440W |
|||||||||
|
Normal |
55W |
62W |
74W |
90W |
98W |
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|
Weight (kg) |
7.0 |
7.2 |
7.2 |
7.2 |
7.5 |
7.5 |
8.8 |
9.0 |
16.5 |
17 |
32 |
36 |
40 |
43 |
|
Video
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