NA Series Automatic Transfer Switches

1.Brand:YUYE 2.Special in Middle East,south Africa,American 3.Export to overseas for 6 years 4.Certificate:CE,CCC,ISO

Detailed Product Description Automatic Transfer Switches YES1-125NA 1) Rated current of over current release: 40, 63, 80, 125

2) Pole number: 2p, 3p, 4p3) Rated working voltage: AC 220V/400V, 50HzFeatures:1) Provided with such protective functions as checking two sources of voltage atthe same time, protection when any one phase or one phase above experiences under- or over-voltage, guide phase2) When two sources have abnormal or faulty tripping (overload, short circuit), thecontroller won't send out the order to realize the protective function of reopeningand closing3) Four working modes: automatic control, common source (power supply I), standbypower supply (power supply II), breaking electricity (re-tripping)4) When the working mode is in the automatic control state, it has two self-throw no self-recover, self-throw, and self-recover functionsa) Self-throw non-self recover: when the device enters the working state, power supply automatically throws into supplying electricity; when power supply I has an abnormity, it will automatically transfer to power supply II; when power supply I recovers, it doesn't transfer until power supply II has an abnormity, then it will automatically transfer to power supply b) Self-throw and self-recover: when the device enters the working state, the common source throws into supplying electricity; when power supply has an abnormity,it will automatically transfer to standby power supply; when common power supply recovers, it will automatically recover common power supply; but when the standby power supply has an abnormity, the controller will emit an alarm sound 

Automatic switch and its corresponding intellectual displayer ,which are mainly used in such sites as high-rise building, post & communication, coal mines, vessels, military establishments,industrial streamlines which need the uninterrupted power. Under the inevitable trend of dramatic increasing demand for municipal power, they can more satisfy the higher requirements for the power utilization reliability.They are designed in a whole compact body, and the electrical-mechanical interlocking ensures that the main backup power supplies cannot be closed simultaneously. The position of both power supplies is in switch-off state designed with the isolation function. The disjunction current is the instant exciting mode.

NA Series Automatic Transfer Switches