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Auto Transfer Switches
Auto Transfer Switches(600~3,200A)
Distinctive
1. Mold type, compact design
This product broke away from the traditional assembly method and reduced the appearance dramatically by designing each phase into a stand-alone mold.
2. Intermediate shutdown
The design allows a neutral position (OFF) using a trip device and switches after stable load and safety are secured.
A=>off=>B , B=>off=>A , A=>off=>A , B=>off=>B A=>B, B=>A switching is also possible by using the operating instruction.
3. Detachable arc extinguishing chamber
This innovative design enables it to check any wearing or damage of the contact point even during operation. The extinguishing capability is increased through an independent detachable arc extinguishing chamber.
Specification
Rated voltage(V) AC 660V, OR DC 125V
Rated current(A) 600 800 1000 1200 1600 2000 2500 3200
Number of poles (P) 3 4 3 4 3 4 3 4 3 4 3 4 3 4 3 4
Weight(Kg) 26 33 31 39 32 40 34 42 40 48 46 56 47 57 54 66
Operating current DC 110V 14 16 16 20 16 20 16 20 20 24 24 30 30 36 36 44
AC 100/110V(RMS) 14 16 16 20 16 20 16 20 20 24 24 30 30 36 36 44
AC 200/220V(RMS) 7 8 8 10 8 10 8 10 10 12 12 15 15 18 18 22
Trip coil current AC/DC 110V = 1A, AC 220V = 0.5A
Performance Rated short-time current(1 sec) 15 KA 15KA 22KA 22KA 25KA 35KA 35KA 55KA
Short circuit peak value 35KA 37.5KA 50KA 50KA 55KA 60KA 75KA 85KA
Switching  capacity AC3 (10 le Making, 8 le Breaking cosθ=0.35) AC2 (4 le Making, 4 le Breaking cosθ=0.65)
Operating Time “A”Power Making 120 mS 120 mS
Breaking 25 mS 40 mS
“B”Power Making 100 mS 120 mS
Breaking 30 mS 65 mS
Life Mechanical 10,000 Times 10,000 Times
Electrical 5,000 Times 5,000 Times
Switching  frequency 30 Times / Hour 30 Times / Hour