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Auto Transfer Switches
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Kyungdong Electric

Circuit breaker, Switch, Electric contact, Heavy electric machine parts, Automatic transfer breaker, Air circuit breaker and more

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Manufacturer
Kyungdong Electric
Product Type
Machine
Brand
-
SKU
49996
Product Name
Auto Transfer Switches
Model Name
-
Size
-
Weight
-
Product Details

Kyungdong Electric Auto Transfer Switches

 

① Reliable transfer by excellent "latching" action

② Maximum electric conduction with the minimum operation current

③ Outstanding opening and closing performance

④ Small size and light weight

⑤ Suitable for the emergency power supply Facilities

⑥ Capable of handing both AC and DC

Specification

Rated voltage(V)AC 660V and DC 125V
Rated current(A)100A200A400A
ConnectionFront or Back
Number of poles(P)3P4P3P4P3P4P
Opening  time60 ms
Change-over time80 ms
Operation correntAC 100 / 110V (RMS)12A12A12A12A16A16A
AC 200 / 220V (RMS)6A6A6A6A8A8A
DC 110V12A12A12A12A16A16A
Rated short-tiom current (1 sec)5 KA10 KA12 KA
Short circuit peak value12.5 KA25 KA30 KA
Weight (㎏)Fornt type131413151821
Back type131413151821
PerformanceMechanical  life span10,000 Times
Electrical life span3,000 Times
Switching  frequency150 Times / Hour

Operating Circult Diagram(AC)

Kyungdong Electric Auto Transfer Switches  1

Operating Circult Diagram(DC)

Kyungdong Electric Auto Transfer Switches  2

SymbolFunctionSymbolFunction
A PowerNormal power sourceB PowerEmergency power source
C1Normal side closing coilC2Emer. side closing coil
S1, S2Silicon rectiifierXa, XbControl Contact
a1~a4A Power Aux Switchb1~b4B Power Aux Switch



Kyungdong Electric
Circuit breaker, Switch, Electric contact, Heavy electric machine parts, Automatic transfer breaker, Air circuit breaker and more
Since founded in 1980, Kyungdong Electric has conducted precision inspection and preventive maintenance of switch gears to become a leading switchboard maintenance company with the purpose of protecting the safety of power equipment supervisors and the property of users from electrical accidents. Today, design, manufacturing, and management techniques in the electric field are evolving day-to-day alongside the rapid growth of industrial technology. Respectively, the importance of electrical installations is rising and management methods are improving, becoming more and more refined. Our company strives to provide diverse services for our customers based on our abundant technology and experience in switchboards and high and low voltage circuit breakers. Our services help prevent electrical accidents in manufacturing companies and commercial buildings as well as extend the life of power facilities. We will continue our efforts to enhance and research electrical equipment managing techniques to fulfill the society’s need for convenience and safety.
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