Item No.: LYDS1

Key Specifications：

LYDS1 series isolation switch is suitable for a power system with rated voltageDC 1200V or below and rated current 32A or below.

The LYDS1 DC Isolator Switch is a compact solution for DC circuit disconnection, providing safe manual isolation for small- to medium-sized DC applications including solar and battery systems.

🔹 Key Technical Knowledge

Product type: Compact DC isolator
Rated voltage: up to typical 600–1000V DC systems
Contact system: Positive break for DC arcing control
Installation: DIN rail or panel mount
Compliance: IEC 60947-3 DC switch standard
Manufacturer role: DC isolator factory with OEM services

🔹 Use Cases / Industries

Small solar PV installations
Battery energy systems
DC control cabinets
Telecom rack DC systems
Off-grid power systems

🔹 OEM & Manufacturing Advantage

As a factory-direct DC isolator switch supplier, we provide flexible OEM/ODM services, scalable manufacturing, and support for international distributors.

Technical Data

Data according to IEC/EN60947-3:AS60947.3, UL508i, GB/T14048.3. Utilization category DC-PV1/DC-PV2.

Main Parameters

LYDS1

Rated Insulation Voltage

1500

Rated thermal current

Ith

Rated impulse withstand voltage

Uimp

8000

Rated short-circuit making capacity

lcw

1 kA,1S

Maximum cable section(incl.jumper

Solid

mm²

4-16

Flexible

mm²

4-10

Flexible(+multicore cable end)

mm²

4-10

Torque

Tightening torque terminal screws M4.

1.2-1.8

Tightening torqueshell mounting screws ST4.2(304 stainless steel)

1.5-2.0

Tightening torque knob screws M3

0.5-0.7

Switching on or off Torque

0.9-1.3

The wiring Torque on Base

1.1-1.4

General parameters

Knob Positions

12 o’clock,OFF 3 o’clock,ON 9o’clock,OFF 12 o’clock,ON

Electrical Life

Actual

3000 Cycles

Standard

300 Cycles

Mechanical Life

Actual

10000 Cycles

Standard

10000 Cycles

Number of DC poles

2 or 4

Operationtemperature

℃

-40 to+85

Storage termperature

℃

40 to+85

Pollution degree

Overvoltage category

Ⅲ

IP rating of shafte and mounting nul

IP66

Data according to IEC/EN60947-3, AS60947.3, Utilization category DC-PV1, DC-PV2

300V		600V		800V		1000V		Pole	No.ofStrings	Part Number
PV1	PV2	PV1	PV2	PV1	PV2	PV1	PV2
32	32	32	32	32	16	16	9	2	1	LYDS1/N32/2
32	32	32	32	32	16	16	9	4	2	LYDS1/N32/4
32	32	32	32	32	32	32	32	4	1	LYDS1/N32/4S
32	32	32	32	32	32	32	32	4	1	LYDS1/N32/4B
32	32	32	32	32	32	32	32	4	1	LYDS1/N32/4T

300V		600V		800V		1000V		1200V		Pole	No.of Strings	Part Number
PV1	PV2	PV1	PV2	PV1	PV2	PV1	PV2	PV1	PV2
32	32	32	32	32	16	16	9	13	9	2	1	LYDS1/S32/2
32	32	32	32	32	16	16	9	13	9	4	2	LYDS1/S32/4
32	32	32	32	32	32	32	32	32	32	4	1	LYDS1/S32/4S
32	32	32	32	32	32	32	32	32	32	4	1	LYDS1/S32/4B
32	32	32	32	32	32	32	32	32	32	4	1	LYDS1/S32/4T

Data according to AS60947-3

Main Contacts

Voltage

LYDS1/S32

LYDS1/N32

Rated thermal current lthe

32A

Rated insulation voltage Ui

1500V

Distanceof contacts(perpole)

8mm

Rated operational current le(DC-PV2)

4 layers,only 2layersin series,with two load

300V

32 A

600V

32 A

800V

16A

16 A

1000V

1200V

4 layers,4 layers in series,with one load

300V

32 A

600V

32 A

800V

32 A

1000V

32 A

1200V

32 A

LYDS1 series isolation switch is suitable for a power system with rated voltageDC 1200V or below and rated current 32A or below.
It is especially suitable for isolating lines in HVDC transmission and distribution systems, such as cutting off the high voltage DC current between solar panels and inverters Five years warranty IP66 degree of protection

Select Code

🔹 FAQ – LYDS1 DC Isolator Switch

What systems is LYDS1 suitable for?
Solar PV DC circuits, battery backup DC power, and telecom DC systems.
Does it interrupt DC safely?
Yes — designed specifically for DC circuit isolation with arcing reduction.
Can it be DIN-rail mounted?
Yes, suitable for DIN-rail or panel installation depending on enclosure setup.
Does this isolator meet international standards?
It is designed per IEC 60947-3 requirements for DC manual switches.
Is OEM customization available?
Yes — our factory offers private label, custom ratings, and bulk orders.