Wenzhou Kinee Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of three-phase four-wire electronic ats in China. We warmly welcome you to wholesale three-phase four-wire electronic ats for sale here from our factory. All customized products are with high quality and competitive price.
Product Introduction
Three-Phase Four-Wire Electronic ATS is specifically designed for three-phase four-wire dual-power distribution systems. It monitors the normal and backup power supplies in real time, automatically switching to the backup power supply when the main power supply fails, and restoring main power supply once it returns to normal. This product features automatic switching, priority phase sequence, voltage and current protection, temperature protection, electricity metering, and timer switching functions, and supports wall-mounted or DIN rail mounting.

Technical Parameters
|
Item |
Specification |
|
Product name |
Three-Phase Four-Wire Electronic Automatic Transfer Switch |
|
Model reference |
KNS5-1002QGL |
|
Application |
AC 50/60Hz low-voltage power distribution and dual-power transfer systems |
|
Supply voltage |
AC 120V / AC 230V |
|
Operating voltage range |
AC 80-300V |
|
Rated frequency |
40-70Hz |
|
Measurement accuracy |
Class 0.5 |
|
Rated insulation voltage |
450V |
|
Output contact |
3NO |
|
Overvoltage hysteresis |
5V |
|
Undervoltage hysteresis |
5V |
|
Mechanical life |
1,000,000 operations |
|
Protection degree |
IP20 |
|
Pollution degree |
3 |
|
Altitude |
Less than 2,000m |
|
Operating temperature |
-5 deg C to +40 deg C |
|
Storage temperature |
-10 deg C to +55 deg C |
|
Humidity |
Less than or equal to 50% at +40 deg C |
|
Product size |
210 x 117 x 72 mm |
Comparison With Traditional Mechanical ATS
|
Feature |
Traditional mechanical ATS |
New electronic ATS |
|
Automatic and manual conversion |
Yes |
Yes |
|
Automatic recovery |
Yes |
Yes |
|
Installation method |
Wall mounting |
Wall mounting and DIN rail mounting |
|
Visual values |
No |
Yes |
|
Adjustable values |
No |
Yes |
|
Three-phase voltage and current imbalance protection |
No |
Yes |
|
Current protection |
No |
Yes |
|
Temperature protection |
No |
Yes |
|
Timer switch |
No |
Yes |
|
Cuts both N and L |
Yes |
Yes |
|
Overvoltage protection |
No |
Yes |
|
Undervoltage protection |
No |
Yes |
|
Phase loss protection |
No |
Yes |
|
N-line overcurrent protection |
No |
Yes |
|
Phase sequence protection |
No |
Yes |
|
Power isolation |
No |
Yes |
|
Delayed power-on |
No |
Yes |
Video
Questions and Answers
Q: When can I expect to receive a quote and detailed information after submitting an inquiry?
A: A reply will be sent within 24 hours.
Q: What makes you different from other suppliers?
A: We have a full range of electrical products and can also customize products to meet your specific needs.
Q: Can I get a sample for testing before placing an order?
A: Of course!
Q: How's the delivery? I really need them urgently!
A: Samples require 5-7 days. Bulk orders require 12-15 days.