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Transfer Switch, Change-Over Switch, Dual Power Transfer Switch manufacturer / supplier in China, offering Intelligent Automatic Transfer Switch (YMQ-630A/3P-3), New Wiring Diagram Household AC Contactor (WTC-63A 2P), Domestic Contactor Ict DIN Rail Modular Contactor (WCT-63A 3P) and so on.

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Supplier Homepage Product ATS Intelligent Automatic Transfer Switch (YMQ-630A/3P-3)

Intelligent Automatic Transfer Switch (YMQ-630A/3P-3)

FOB Price: US $290-366 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $290-366/ Piece
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Port: Ningbo, China
Production Capacity: 100000 Pieces/Year
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: YMQ-630A/3P-3
  • Brand: Ymany
  • Certification: CCC, CE
  • Poles: 3p or 4p
  • Kinds of Body: Integrate or Split
  • Connection: Front Connect
  • Controller: External
  • Specification: 315A~630A
  • HS Code: 8536500000
  • Warranty: 2 Year
  • Operation: Electric
  • Type: Integrated automatic transfer switch
  • Operation Type: Solenoid Coil
  • Automatic Switching Time: Can Be Adjusted 1s-99s
  • OEM or ODM: Accepted
  • Transport Package: Inner Box+Carton
  • Origin: China
Product Description


YMQ Series automatic transfer switch (transfer switch) is developed successfully with the help of the most advanced ATS technology in the world. This kind of transfer switch and intelligent display mated with it are mainly applied in the occasions required uninterrupted power supply like building, posts and telecommunications, mine industry, shipping and military industry. Under the necessary trend of urban power service increasing, it can meet the higher requirements of the reliable power service. This product has many features like reliable performance, small volume and simple operating etc.

2.Main function

With safe and reliable interlocking function, when the breaker is under closing state, the breaker cannot be glugged in or drawn out, you must open the breaker first to plug in or pull out. With function of reliable making and breaking main circuit and secondary circuit, besides, the device possesses self-locking function. When you draw out the breaker, the device has safe insulating isolation (your finger will not touch with the charged parts). The breaker can be mounted with various rotating manual operating mechanism and motor operating mechanism.

3.Product Classfication:
Two Sections without double-break Position.
Three Sections with intermediate double-break position.

4.Conversion mode: Power on the grid, grid generator,auto-charge & auto-recovery, auto charge & non auto-recovery, and mutual standby.


Tyep YMQ5 (Three-step type)YMQ-1000YMQ-1250YMQ-1600YMQ-2000YMQ-3150YMQ-4000
Rated voltageAC690V DC125VAC690V
Rated current1000A1250A1600A2000A3150A4000A
Number of cutting inDouble cut-in
Connecting * modeAt the back of panel in the front of panelAt the back of panel
Number of pole2P3P4P2P3P4P2P3P4P2P3P4P2P3P4P3P
Operating currentDC110V (A)6686687898101210121416
AC100V/110V (A)6686687898101210121416
AC200V/220V (A)3343343.544.54567878
Trip currentDC110V2A4A
PerformanceShort-time withstanding current22kA25kA35kA50kA50kA
Rated conditional short-circuit current50kA55kA55kA80kA100kA
Making and breaking capacityAC-33B(10Ie making 8Ie opening) cosØ=0.35 DC-33B 1.1Ie making 1.1Ie openingL/R=1msAC2(Ie making Ie opening) cosØ=0.65
Changeover timeA power sideCut in115ms115ms180ms140ms200ms(190)
Cut off25ms25ms25ms30ms30ms(30)
B power sideCut in145ms150ms220ms190ms220ms(240)
Cut off25ms25ms25ms30ms30ms(30)
Service life  
Operation circle time120 times/hour30 times/hour
Auxiliary switchA source 1C B source 1C switch capacity AC100V5A AC200V2.5A DC100V0.5A
AccessoryProtective cover breakthough absorber manual handle
Type YMQ (Three-step type)YMQ-100YMQ-250YMQ-400YMQ-630YMQ-800
Rated voltageAC690V DC125V
Rated current100A250A400A630A800A
Number of cutting inDouble cut-in
Connecting * modeIn front of panel and at back of panel (Non standard * product)
Operating currentDC110V (A)334345557666
AC100V/110V (A)334345557666
AC200V/220V (A)1.51.521.522.
Trip currentDC110V1A1.5A2A
PerformanceShort-time withstanding current5kA10kA12kA15kA
Rated conditional short-circuit current12.5kA25kA30kA37.5kA
Making and breaking capacityAC-33B(10Ie making 8Ie opening ) cosØ=0.35 DC-33B 1.1Ie making 1.1Ie opening L/R=1ms
Changeover timeA power sideCut in55ms55ms60ms100ms
Cut off20ms20ms25ms30ms
B power sideCut in80ms80ms90ms135ms
Cut off20ms20ms25ms30ms
Service lifeWith 2500 times of electric life with 10000 times(120 times/hour) of mechanical life
Operation circle time120 time/hour
Auxiliary switchA source 1C B source 1C switch capacity AC100V5A AC200V2.5A DC100V0.5A
AccessoryProtective cover breakthough absorber manual handle
Intelligent Automatic Transfer Switch (YMQ-630A/3P-3)
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