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NYKP Series

Dual Power Automatic Transfer Switch

NYKP2 series（16A-3200A）

NYKP1 series（6A-630A）

Intelligent Fast Safe Comprehensive

PRODUCT OVERVIEW

Dual power automatic transfer switch is a power conversion equipment, featuring fast response, strong stability and high reliability; it has the protection functions for short circuit, grounding, phase loss and over-voltage; widely used in power plants, substations, coal mines, ports, factories, airports, and other important places for the protection of circuits and equipment safety, realizing intelligent control and management.

FAST RESPONSE AND SWITCHING

Dual power supplies are driven by motors and solenoids for fast.

ISOLATION FUNCTION MAKES USERS MORE ASSURED

The front end of the product can be set with an isolation switch or with isolation function,providing obvious line disconnection points to protect personal safety during maintenance.

TECHNICAL PARAMETERS

NYKP2 Series

Rated operating voltage: 400V
Rated operating current: 16-3200A
Product category: PC grade
Number of poles: 2P, 3P, 4P
Switching mode: automatic charge and automatic recovery, automatic charge without automatic recovery
Power supply mode: grid - grid, grid - power generation
Use category: AC-33iB, AC-33B

NYKP1 series

Rated operating voltage: 400V
Rated operating current: 6-630A
Product category: CB grade
Number of poles: 3P, 4P
Switching mode: automatic charge and automatic recovery, automatic charge without automatic recovery
Power supply mode: grid - grid, grid - power generation
Use category: AC-33iB

Technical Parameters

NYKP2-G Series DUAL Power Supply

Model	Rated operating voltage Ue(V)	Casing current Inm(A)	Rated currentIn(A)	Number of poles	Rated short-circuit making capacity Icm（kA）Icm（kA）	Rated short-time withstand current Icw (kA) Icw（kA)	Use category
NYKP2-GA	AC400	100	16、20、25、32、40、50、63、80、100	3P、4P	8	5kA/30ms	AC-33B
NYKP2-GA		250	125、160、200、225、250			10kA/60ms
NYKP2-GA		630	315、350、400、500、630			12.6kA/60ms
NYKP2-GA		1600	800、1000、1250、1600			32kA/60ms	AC-33iB
NYKP2-GA		3200	2000、2500、3200			50kA/1s	AC-33iB

NYKP2-LA/L/SA/S Series DUAL Power Supply

Model	Rated operating voltage Ue(V)	Casing current Inm(A)	Rated currentIn(A)	Number of poles	Rated short-circuit making and Breaking capacity Icm（kA）	Operation cycles times/hour	Rated short-time withstand current Icw (kA) Icw（kA)	Use category
NYKP2-SA、S、LA、L	AC230V(2P), AC400V(3P、4P)	125	20、32、40、50、63、80、 100、125	2P、3P、4P	25	120	10kA/30ms	AC-33B
NYKP2-SA、S、LA、L		250	125、160、200、250	2P、3P、4P	25		10kA/30ms	AC-33B
NYKP2-SA、S、LA、L		630	250、315、400、500、630	2P、3P、4P	30		12.6kA/60ms	AC-33B

NYKP2 Series DUAL Power Controller Summary

Controller Model	NYKP2 Series
Product model	y-701	y-702
Installation method	Split type
Display mode	Indicator light display	LCD display
Rated working system	Uninterrupted working system
Automatic charge and automatic recovery	●	●
Automatic charge without automatic recovery	●	●
Mutual backup	●	●
Automatic start generator function	●	●
Common power supply detection	Four-phase power loss detection, three-phase over-voltage and
Backup power supply detection	Four-phase power loss detection, three-phase over-voltage and
Passive fire protection input	●	●
Active fire protection input (DC9-36V)（DC9-36V）	●	●
Adjustable transfer delay	●	●
Real-time voltage display	〇	●
Common and backup power supply indication	●	●
Adjustable overvoltage and undervoltage for common and backup power	●	●
Adjustable start and stop time of generator	●	●(F/F1)
Programmable output port	〇	●
RS485Electrical energy measurement	〇	●

NYKP1 Series DUAL Power Supply

Model	Rated operating voltage Ue(V)	Rated impulse withstand voltage Uimp(kV)	Casing current Inm(A)	Rated currentIn(A)	Number of poles	Rated short-circuit breaking capacity Icn (kA)	Rated short-circuit making capacity Icm（kA）Icm（kA）	Product code	Use category
NYKP1	AC400	8	63	6、10、16、20、25、 32、40、50、63	3P、4P	5	120	M:Basic type M1: Fire extinguishing type	AC-33iB

NYKP1A Series DUAL Power Supply

Model	Rated operating voltage Ue(V)	Casing current Inm(A)	Rated currentIn(A)	Number of poles	Operating mode	Transfer time	Mechanical life（Times）	Electrical life (times)	Controller
NYKP1A	AC400	63	6、10、16、20、25、 32、40、50、63	4P	R(Automatic charge and automatic recovery) S(Automatic charge without automatic recovery) F(grid-power generation)	≤2s	10000	4500
NYKP1A		125	63、80、100、125			≤3s+delay time	7000	3000	W2 W3
NYKP1A		250	160、180、200、225、250				5000	2000
NYKP1A		630	315、350、400、500、630				5000	2000

NYKP1 Series Dual Power Controller Summary

Product model	NYKP1 Series
Controller Model	W2	W3
Installation method	Split type
Display mode	Digital display	LCD display
Rated working system
Automatic charge and automatic recovery	●	●
Automatic charge without automatic recovery	●	●
Mutual backup	●	●
Automatic start generator function	●	●
Common power supply detection	●	●
Backup power supply detection	●	●
Passive fire protection input	●	●
Active fire protection input (DC9-36V)（DC9-36V）	●	●
Adjustable transfer delay	●	●
Real-time voltage display	●	●
Common and backup power supply indication	●	●
Adjustable overvoltage and undervoltage for common and backup power	●	●
Adjustable start and stop time of generator	●	●
Programmable output port	●	●
RS485Electrical energy measurement	●	●

Selection table

NYKP2-G Series DUAL Power Supply

NYKP2	100	GA	4P	100A	RF	Additional functions
Product code	Casing current	Product category	Pole No.	Rated current	Operating mode	Additional functions
NYKP2： Dual power automatic transfer switch	100A 250A 630A 1600A 3200A	GA: Electric motor type GA1: Electric motor type	3P:3 pole 4P:4 pole	16A、20A 25A、32A 40A、50A 63A、80A 100A、125A 160A、200A 225A、250A 315A、350A 400A、500A 630A、800A 1250A 1600A 2000A 2500A 3200A	R:Automatic charge and automatic recovery S:Automatic charge without automatic recovery F:Grid generation RF:Automatic charge and automatic recovery+Grid generation	Y-701 Y-702

NYKP2-LA/L/SA/S Series DUAL Power Supply

NYKP2	125	SA	4P	100A	RF	Additional functions
Product code	Casing current	Product category	Pole No.	Rated current	Operating mode	Additional functions
NYKP2： Dual power automatic transfer switch	125A 250A 630A	SA: Integrated three-section type LA: Integrated two-section type S:Split three-section type L:Split two-section type	2P:2 pole 3P:3 pole 4P:4 pole	20A、32A、 40A、 50A、 63A、80A、 100A、125A、 160A、 200A、 250A、315A、 400A、500A、630A	R:Automatic charge and automatic recovery S:Automatic charge without automatic recovery F:Grid generation RF:Automatic charge and automatic recovery+Grid generation	Y-701 Y-702

Note:? GA series equipped with standard fire protection function
? GA1 series does not include fire protection function
? GA series with automatic charge without automatic recovery function should be equipped with Y-701/Y-702 controller
? GA series with communication function should be equipped with Y-702 controller

NYKP1 Series DUAL Power Supply

NYKP1	63	M	3P	63A	RF	C type
Product code	Casing current	Product category	Pole No.	Rated current	Operating mode	Tripping type
NYKP1： Dual power automatic transfer switch	63A	Model M:Basic type M1 type：Fire protection type	3P:3 pole 4P:4 pole	6A、10A、 16A、 20A、 25A、32A、 40A、50A、 63A	R:Automatic charge and automatic recovery S:Automatic charge without automatic recovery F:Grid generation RF:Automatic charge and automatic recovery+Grid generation	C type D type

Note: KLDCB1 is a CB grade dual power supply switch, the execution unit is a miniature circuit breaker, with C characteristics by default

NYKP1A Series DUAL Power Supply

NYKP1A	125	4P	63A	RF	Additional functions
Product code	Casing current	Pole No.	Rated current	Operating mode	Additional functions
NYKP1A： Dual power automatic transfer switch	63A 125A 250A 630A	4P:4 pole	6A、10A 16A、20A 25A、32A 40A、50A 63A、80A 100A、125A 160A、180A 200A、225A 250A、315A 350A、400A 500A、630A	R:Automatic charge and automatic recovery S:Automatic charge without automatic recovery F:Grid generation RF:Automatic charge and automatic recovery+Grid generation	W2 W3 T:Electrical energy measurement

Note: The execution unit of NYKP1A is a miniature circuit breaker, with C characteristics by default. others are molded case circuit breaker.

Technical Parameters

NYKP2-G Series DUAL Power Supply

Rated operating voltage (V)：AC400

Current shell frame Inm (A) ：16、20、25、32、40、50、63、80、100

Number of poles：3P、4P

Rated short-circuit making capacity Icm（kA）lcm(kA)：8

Rated short-time withstand current Icw (kA) Icw(kA)：5kA/30ms

Use category：AC-33B

Rated operating voltage (V)：AC400

Current shell frame Inm (A) ：125、160、200、225、250

Number of poles：3P、4P

Rated short-circuit making capacity Icm（kA）lcm(kA)：8

Rated short-time withstand current Icw (kA) Icw(kA)：10kA/60ms

Use category：AC-33B

Rated operating voltage (V)：AC400

Current shell frame Inm (A) ：315、350、400、500、630

Number of poles：3P、4P

Rated short-circuit making capacity Icm（kA）lcm(kA)：8

Rated short-time withstand current Icw (kA) Icw(kA)：12.6kA/60ms

Use category：AC-33B

Rated operating voltage (V)：AC400

Current shell frame Inm (A) ：800、1000、1250、1600

Number of poles：3P、4P

Rated short-circuit making capacity Icm（kA）lcm(kA)：8

Rated short-time withstand current Icw (kA) Icw(kA)：32kA/60ms

Use category：AC-33iB

Rated operating voltage (V)：AC400

Current shell frame Inm (A) ：2000、2500、3200

Number of poles：3P、4P

Rated short-circuit making capacity Icm（kA）lcn(kA)：8

Rated short-time withstand current Icw (kA) Icw(kA)：50kA/1s

Use category：AC-33iB

NYKP2-LA/L/SA/S Series DUAL Power Supply

Rated operating voltage (V)：AC230V(2P)，AC400V(3P、4P)

Current shell frame Inm (A) ：20、32、40、50、63、80、100、125

Number of poles：2P、3P、4P

Rated short-circuit making and breaking capacityIcm (kA) lcm(kA)：25

Operation cycles times/hour：120

Rated short-time withstand current Icw (kA) Icw(kA)：10kA/30ms

Use category：AC-33iB

Rated operating voltage (V)：AC230V(2P)，AC400V(3P、4P)

Current shell frame Inm (A) ：125、160、200、250

Number of poles：2P、3P、4P

Rated short-circuit making and breaking capacityIcm (kA) lcm(kA)：25

Operation cycles times/hour：120

Rated short-time withstand current Icw (kA) Icw(kA)：10kA/30ms

Use category：AC-33iB

Rated operating voltage (V)：AC230V(2P)，AC400V(3P、4P)

Current shell frame Inm (A) ：250、315、400、500、630

Number of poles：2P、3P、4P

Rated short-circuit making and breaking capacityIcm (kA) lcm(kA)：30

Operation cycles times/hour：120

Rated short-time withstand current Icw (kA) Icw(kA)：12.6kA/60ms

Use category：AC-33iB

NYKP2 Series Dual Power Controller Summary

Installation method：Split type

Display mode：Indicator light display

Rated working system：Uninterrupted working system

Automatic charge and automatic recovery：have

Automatic charge without automatic recovery：have

Mutual backup：have

Automatic start generator function：have

Common power supply detection： Four-phase power loss detection, three-phase over-voltage and under-voltage detection

Backup power supply detection： Four-phase power loss detection, three-phase over-voltage and under-voltage detection

Passive fire protection input：have

Active fire protection input (DC9-36V)：have

Adjustable transfer delay：have

Real-time voltage display：not have

Common and backup power supply indication：have

Adjustable overvoltage and undervoltage for common and backup power：have

Adjustable start and stop time of generator：have

Programmable output port：not have

RS485 communication function：not have

Installation method：Split type

Display mode：LCD display

Rated working system：Uninterrupted working system

Automatic charge and automatic recovery：have

Automatic charge without automatic recovery：have

Mutual backup：have

Automatic start generator function：have

Common power supply detection： Four-phase power loss detection, three-phase over-voltage and under-voltage detection

Backup power supply detection： Four-phase power loss detection, three-phase over-voltage and under-voltage detection

Passive fire protection input：have

Active fire protection input (DC9-36V) ：have

Adjustable transfer delay：have

Real-time voltage display：have

Common and backup power supply indication：have

Adjustable overvoltage and undervoltage for common and backup power：have

Adjustable start and stop time of generator：have（F/F1）

Programmable output port：have

RS485 communication function：have

NYKP1 Series DUAL Power Supply

Rated operating voltage (V)：AC400V

Rated impulse withstand voltage Uimp(kV)：8

Current shell frame Inm (A) ：6、10、16、20、25、32、40、50、63

Number of poles：3P、4P

Rated ultimate breaking capacity lcm(kA)：5

Rated short-circuit making capacity Icm（kA）lcn(kA)：120

Product code ：M: Basic type M1: Fire extinguishing type

Use category：AC-33iB

NYKP1A Series DUAL Power Supply

Rated operating voltage (V)：AC400V

Rated impulse withstand voltage Uimp(kV)：8

Current shell frame Inm (A) ：6、10、16、20、25、32、40、50、63

Number of poles：4P

Operating mode ：R(Automatic charge and automatic recovery)、S(Automatic charge without automatic recovery)、F(grid-power generation)

Transfer time：≤2s

Mechanical life (times) ：10000

Electrical life (times) ：4500

Rated operating voltage (V)：AC400V

Rated impulse withstand voltage Uimp(kV)：8

Current shell frame Inm (A) ：63、80、100、125

Number of poles：4P

Operating mode ：R(Automatic charge and automatic recovery)、S(Automatic charge without automatic recovery)、F(grid-power generation)

Transfer time：≤3s+delay time

Mechanical life (times) ：7000

Electrical life (times) ：3000

Controller：W2、W3

Rated operating voltage (V)：AC400V

Rated impulse withstand voltage Uimp(kV)：8

Current shell frame Inm (A) ：160、180、200、225、250

Number of poles：4P

Operating mode ：R(Automatic charge and automatic recovery)、S(Automatic charge without automatic recovery)、F(grid-power generation)

Transfer time：≤3s+delay time

Mechanical life (times) ：5000

Electrical life (times) ：2000

Controller：W2、W3

Rated operating voltage (V)：AC400V

Rated impulse withstand voltage Uimp(kV)：8

Current shell frame Inm (A) ：315、350、400、500、630

Number of poles：4P

Operating mode ：R(Automatic charge and automatic recovery)、S(Automatic charge without automatic recovery)、F(grid-power generation)

Transfer time：≤3s+delay time

Mechanical life (times) ：5000

Electrical life (times) ：2000

Controller：W2、W3

NYKP1 Series Dual Power Controller Summary

Installation method：Split type

Display mode：Digital display

Rated working system：not have

Automatic charge and automatic recovery：have

Automatic charge without automatic recovery：have

Mutual backup：have

Automatic start generator function：have

Common power supply detection：have

Backup power supply detection：have

Passive fire protection input：have

Active fire protection input (DC9-36V) ：have

Adjustable transfer delay：have

Real-time voltage display：have

Common and backup power supply indication：have

Adjustable overvoltage and undervoltage for common and backup power：have

Adjustable start and stop time of generator：have

Programmable output port：have

RS485 communication function：have

Installation method：Split type

Display mode：LCD display

Rated working system：not have

Automatic charge and automatic recovery：have

Automatic charge without automatic recovery：have

Mutual backup：have

Automatic start generator function：have

Common power supply detection：have

Backup power supply detection：have

Passive fire protection input：have

Active fire protection input (DC9-36V)：have

Adjustable transfer delay：have

Real-time voltage display：have

Common and backup power supply indication：have

Adjustable overvoltage and undervoltage for common and backup power：have

Adjustable start and stop time of generator：have

Programmable output port：have

RS485 communication function：have

Selection table

NYKP2-G Series DUAL Power Supply

Product code ：NYKP2: Dual power automatic transfer switch

Current shell frame ：100A、250A、630A、1600A、3200A

Product category ：GA、GA1

Pole code ：3P、4P

Rated current：16A、20A、25A、32A、40A、50A、63A、80A、100A、125A、160A、200A、225A、250A、315A、350A、400A、500A、630A、800A、1250A、1600A、2000A、2500A、3200A

Operating mode ：R:Automatic charge and automatic recovery、S:Automatic charge without automatic recovery、F:Grid generation、RF:Automatic charge and automatic recovery+Grid generation

Additional features：Y-701、Y-702

NYKP2-LA/L/SA/S Series DUAL Power Supply

Product code ：NYKP2: Dual power automatic transfer switch

Current shell frame ：125A、250A、630A

Product category：SA:Integrated three-section type、LA: Integrated two-section type 、S: Split three-section type、L:Split two-section type

Pole code ：2P、3P、4P

Rated current： 20A、32A、40A、50A、63A、80A、100A、125A、160A、200A、250A、315A、400A、500A、630A

Operating mode ：R:Automatic charge and automatic recovery、S:Automatic charge without automatic recovery、F:Grid generation、RF:Automatic charge and automatic recovery+Grid generation

Additional features：Y-701、Y-702

Note: GA series equipped with standard fire protection function
GA1 series does not include fire protection function
GA series with automatic charge without automatic recovery function should be equipped with Y-701/Y-702 controller
GA series with communication function should be equipped with Y-702 controller

NYKP1 Series DUAL Power Supply

Product code ：NYKP1: Dual power automatic transfer switch

Current shell frame ：63A

Product category：Type M: Basic type、Type M1: Fire protection type

Pole code ：3P、4P

Rated current：6A、10A、16A、20A、32A、40A、50A、63A

Operating mode ：R:Automatic charge and automatic recovery、F:Grid generation、RF:Automatic charge and automatic recovery+Grid generation

Tripping type：Type C 、Type D

Note: KLDCB1 is a CB grade dual power supply switch, the execution unit is a miniature circuit breaker, with C characteristics by default

NYKP1A Series DUAL Power Supply

Product code ：NYKP1A: Dual power automatic transfer switch

Current shell frame ：63A、125A、250A、630A

Pole code ：4P

Rated current：6A、10A、16A、20A、32A、40A、50A、63A、80A、100A、125A、160A、180A、200A、225A、250A、315A、350A、400A、500A、630A

Operating mode ：R:Automatic charge and automatic recovery、S:Automatic charge without automatic recovery、F:Grid generation、RF:Automatic charge and automatic recovery+Grid generation

Additional features：W2、W3、T: Communication function

Note: The execution unit of NYKP1A is a miniature circuit breaker, with C characteristics by default. others are molded case circuit breaker.