Dual Power Automatic Transfer Switch (MQ3)
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MQ3 series dual power automatic transfer switches (follow brief as setting) is one of adopted international technology developed by our company. The setting is suits for AC 50Hz, rated working voltage is 400V, rated current 6A-100A and under dual power supply system. It has over voltage, under voltage, lost phases protection function. The setting mainly used for hospital, shopping center, bank, and chemical industry, metallurgy, high building, military facilities.
IEC947-6-1(1989) <<Automatic Transfer Switch Electric Equipment>>.
The main technology parameter:
1. The voltage of the automatic controller and motor operation controller is AV220V
2. The life of the switch (N-R-N) is 5000 times
3. The minimum transfer time is 3s