Item No.: LYDS6

LYDS6

Description：

LYDS6 Screw fixing doesn’t interfere with the sealing performance; Multiple mechanical seals around the shaft guarantee the reliability of a waterproof and moisture-proof design; Stainless steel rotary screw does not rust nor damp; Standard cable interface available with seal rings; Internal sealing in top and bottom covers, combined with 2 screws, guarantee an IP66 protection degree.

The LYDS6 DC Isolator Switch is a durable DC manual disconnect designed for reliable isolation of battery and DC power circuits in renewable energy, backup systems, and industrial applications.

🔹 Key Technical Knowledge

Product type: DC isolator switch
Rated current: mid-range DC amperage suitable for solar and storage
Contacts: DC positive break mechanism
Installation: Panel or enclosure mount
Compliance: IEC 60947-3 for DC switching performance
Manufacturer role: OEM-ready DC isolator factory supplier

🔹 Use Cases / Industries

Residential and commercial solar PV systems
Battery backup systems
Telecom DC cabinets
Industrial DC feeders
Off-grid energy installations

🔹 OEM & Manufacturing Advantage

As a professional DC isolator manufacturer, we offer bulk supply, OEM branding, custom current ratings, and global logistics support.

Technical Data

Main Parameters
Model						A	13		20		25		40		50
Rated insulation voltage Ui						V	1500		1500		1500		1500		1500
Rated thermal curent Ith						A	32		40		55		55		55
Rated impuke withstand voltage Uimp						V	8000
Rated short-time withstand current(1s)kow						A	780
Rated short-time making capacty kcm						A	1200
Maximum cable coss sections (incl.jumper)
Solid or stranded						mm²	4-16
Flexible						mm²	4-16
Flexible(+multicorecable end)						mm²	4-16
Torque
Tightening torque terminal screws M4						Nm	1.2-1.8
Tightening torque single hole mounting nut M16						Nm	2.0-2.3
Tightening torque knob screws M3						Nm	0.5-0.7
Switchingon oroff torque						Nm	0.9-1.3
General parameters
Knob positions								12 o’dock OFF,3 o’dock ON(9o’dock OFF,12 o’dock ON)
BectricalLife				Actual				3000 Cydes
				Standard				300 Cydes
MechanicalLife				Actual				10000 Cydes
				Standard				10000 Cydes
Distance ofcontacts (per pole)							mm	8
Operation temperature							℃	-40 to +85
Store temperature							℃	-40 to +85
Pollutiondegree								3
Overvoltage category								lⅡ
IP rating of shafte and mounting nut								IP66
According to IEC/EN60947-3.Utilizationcategory DC-PV1.
Layers	Voltage/current(DC-PV1)
2/3/4/6/8/10			600Vdc		800Vdc			1000Vdc		1200Vdc		1500Vdc			Model
			32		26			13		10		5			LYDS5(6)(7)XX/13/ZY
			40		30			20		12		6			LYDS5(6)(7)XX/20/ZY
			55		45			25		15		8			LYDS5(6)(7)XX/25/ZY
			/		50			40		30		20			LYDS5(6X(7)XX/40/ZY
			1		55			50		40		30			LYDS5(6)(7)XX/50/ZY
4T/B/S			/					32		26		13			LYDS5(6)(7)XX/13/ZY
			/		/			40		30		20			LYDS5(6)(7)XX/20/ZY
			/		/			55		40		30			LYDS5(6)(7)XX/25/ZY
			/		1					/		45			LYDS5(6)(7)XX/40/ZY
												50			LYDS5(6)(7)XX/50/ZY
According to AS60947.3.UtilizationcategoryDC-PV2.
Layers	Voltage/current(DC-PV2)
2/3/4/6/8/10			600Vdc		800Vdc			1000Vdc		1200Vdc		1500Vdc			Model
			13		13			6		4		3			LYDS5(6)(7)XX/13/ZY
			20		15			8		6		4			LYDS5(6)(7)XX/20/ZY
			25		23			10		8		5			LYDS5(6)(7)XX/25/ZY
			40		30			20		15		8			LYDS5(6)(7)XX/40/ZY
			50		40			25		18		10			LYDS5(6)(7)XX/50/ZY
4T/B/S3T/6T/9T			/					12							LYDS5(6)(7)XX/13/ZY
			/		/			18		1		/			LYDS5(6)(7)XX/20/ZY
			/					20		/					LYDS5(6)(7)XX/25/ZY
			/		/			40		/		/			LYDS5(6)(7)XX/40/ZY
			/		/			50		/		/			LYDS5(6)(7)XX/50/ZY
Accordingto UL5081.Utilization category UL.
Layers	Voltage/current(UL508i)
2/3/4/6/8/10		600VDC				800VDC				1000VDC				Model
		30				30				13				LYDS5(6X(7)XX/13/ZY
		30				30				20				LYDS5(6X(7)XX/20/ZY
		30				30				25				LYDS5(6)(7)XX/25/2Y
		30				30				30				LYDS5(6X(7)XX/30/2Y
Note*10P products needs to be customized,please kindly contact us if need them

Product Benefits

Ip66, UV Resistance
Arcing Time < 3ms
Earth Terminal
IEC60947-3, AS60947.3
2 Poles, 4 Poles Available(Single | Double String)
DC-PV2 / DC-21B: 55A up to 1500VDC

🔹 FAQ – LYDS6 DC Isolator Switch

What type of circuits is LYDS6 designed for?
DC distribution networks, solar PV string isolations, battery banks, and DC load circuits.
Can this isolator switch safely interrupt DC current?
Yes. It uses a positive break contact design that minimizes arcing in DC circuits.
What standards does LYDS6 meet?
Complies with IEC 60947-3 DC switch requirements for safe isolation.
Where is it best installed?
DC distribution panels, combiner boxes, energy storage cabinets, and inverter input areas.
Does this product support OEM customization?
Yes — multi-language labels, private-label packaging, and technical custom options are supported.