EKDS7 Series DC Isolation Switch

The EKDS7 series DC disconnect switch is a high-performance electrical isolation device designed specifically for 1500V high-voltage solar photovoltaic (PV) systems. It features a non-polarity design, modular configuration, excellent protection rating, and superior electrical performance, ensuring safe operation, convenient maintenance, and reliable protection for PV power plants.

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Product Profile

•Non-polarityDCIsolatorSwitch
•Modulardesign,available2-10levels. •SingleHoleMounting,PanelMounting,DistributionBoard,DoorClutchorEnclosureavailable. •DynamicsealingdesignandworldclasssealingmaterialsguaranteeanIP66protectionrate. •DC1500Vinsulationvoltagedesign,passedIEC/EN60947-3test,TUV,CEavailable.
•Impactresistance:IK08 •Ratedcurrent:13A,20A,25A,40A,50A

Model Preparation Meaning

Code	Meaning
①	ETEK
②	DCIsolationSwitch
③	Series7
④	MountingType: DB:RailInstallation PM:PanelMounting DC:Doorinterlock HM:HoleMounting EL:Enclosured

Code	Meaning
⑤	RatedCurrent: 13:13A;20:20A;25:25A;40:40A;50:50A
⑥	Pole: 2P,3P,4P,6P,8P,10P 2H,3H,4H 4T,4B,4S,3T,6T,9T
⑦	R:Lockable Nil:Withoutlock

Note:ThedirectionofthePMseriesrotarybuttonisclosedat9hrandopenat12hr. Thedirectionoftheotherrotarybuttonsisclosedat12hrandopenat3hr.
HMseriesrotarybuttonshaveboththedirections. Ifyouhavespecialneeds,pleasekindlycheckwithus.

Technical Data

Ratedoperatingcurrentat1000V(In)		13A	20A	25A	40A	50A
Ratedinsulationvoltage(Ui)		1500V
Ratedthermalcurrent(Ith)		32A	40A	55A	55A	63A
Ratedimpulsewithstandvoltage(Uimp)		8000V
Ratedshort-timewithstandcurrent(1s)(Icw)		780A
Ratedshort-timemakingcapacity(Icm)		1200A
Maximumcable crosssections (incl.jumper)	Solidorstandard	4-16mm²
	Flexible	4-16mm²
	Flexible(+multicorecableend)	4-16mm²
TighteningtorqueterminalscrewsM4.		1.2-1.8N·m
TighteningtorquesingleholemountingnutM16		2.0-2.3N·m
TighteningtorqueknobscrewsM3		0.5-0.7N·m
Switchingonorofftorque		0.9-1.3N·m
Knobpositions		OFFat9hr,ONat12hr;OFFat12hr,ONat3hr
ElectricalLife	Actual	3000Cycles
	Standard	300Cycles
MechanicalLife	Actual	1000Cycles
	Standard	1000Cycles
Distanceofcontacts(perpole)		8mm
Operationtemperature		-40℃to+85℃
Storetemperature		-40℃to+85℃
Pollutiondegree		3
Overvoltagecategory		11
IPratingofshafteandmountingnut		IP66

Poles	600Vdc	800Vdc	1000Vdc	1100Vdc	1200Vdc	1300Vdc	1500Vdc	Model
2/3/4/6/8/10	32	26	13	13	10	10	5	EKDS7XX-13-YZ
	40	30	20	20	12	12	6	EKDS7XX-20-YZ
	55	45	25	25	15	15	8	EKDS7XX-25-YZ
	/	50	40	40	30	30	20	EKDS7XX-40-YZ
	/	63	50	50	40	35	32	EKDS7XX-50-YZ
4T/4B/4S	/	/	32	/	26	/	13	EKDS7XX-13-YZ
	/	/	40	/	30	/	20	EKDS7XX-20-YZ
	/	/	55	/	40	/	30	EKDS7XX-25-YZ
	/	/	/	/	/	/	45	EKDS7XX-40-YZ
	/	/	/	/	/	/	50	EKDS7XX-50YZ
3T/6T/9T	/	/	32	/	23	/	10	EKDS7XX-13-YZ
	/	/	40	/	30	/	13	EKDS7XX-20-YZ
	/	/	55	/	40	/	20	EKDS7XX-25-YZ
	/	/	/	/	45	/	30	EKDS7XX-40-YZ
	/	/	/	/	50	/	40	EKDS7XX-50-YZ
2H	50	26	13	/	10	/	5	EKDS7XX-13-YZ
	64	30	20	/	12	/	6	EKDS7XX-20-YZ
	80	45	25	/	15	/	8	EKDS7XX-25-YZ
	90	50	40	/	30	/	20	EKDS7XX-40-YZ
	100	55	50	/	40	/	30	EKDS7XX-50-YZ
3H	/	50	13	/	10	/	5	EKDS7XX-13-YZ
	/	64	20	/	12	/	6	EKDS7XX-20-YZ
	/	80	25	/	15	/	8	EKDS7XX-25-YZ
	/	90	40	/	30	/	20	EKDS7XX-40-YZ
	/	100	50	/	40	/	30	EKDS7XX-50-YZ
4H	/	/	50	/	10	/	5	EKDS7XX-13-YZ
	/	/	64	/	12	/	6	EKDS7XX-20-YZ
	/	/	80	/	15	/	8	EKDS7XX-25YZ
	/	/	90	/	30	/	20	EKDS7XX-40-YZ
	/	/	100	/	40	/	30	EKDS7XX-50-YZ
2/3/4/6/8/10	13	13	6	/	4	/	3	EKDS7XX-13-YZ
	20	15	8	/	6	/	4	EKDS7XX-20-YZ
	25	23	10	/	8	/	5	EKDS7XX-25-YZ
	40	30	20	/	15	/	8	EKDS7XX-40-YZ
	50	40	25	/	18	/	10	EKDS7XX-50-YZ
4T/4B/4S/3T/6T/9T	/	/	12	/	/	/	/	EKDS7XX-13-YZ
	/	/	18	/	/	/	/	EKDS7XX-20-YZ
	/	/	20	/	/	/	/	EKDS7XX-25-YZ
	/	/	40	/	/	/	/	EKDS7XX-40-YZ
	/	/	50	/	/	/	/	EKDS7XX-50-YZ