LYAS80 Switch-Disconnectors

Item No.: LYAS80

LYAS80 Switch-Disconnectors

Description：

LYAS80 Switch-disconnectors are widely used in Power Distributionsystems and Automation systems for Buildings, Power, Petrochemicaland other industries, can effectively solve the problems of emergencydisconnection, safety disconnection, machine control and motor control.

The LYAS80 DC Isolator Switch is a high-performance disconnect switch designed for safe manual isolation of direct current (DC) circuits, especially in photovoltaic, energy storage, and industrial DC systems.

🔹 Key Technical Knowledge

Product type: DC isolator / disconnect switch
Rated DC voltage: suitable for 600–1500V DC systems
Contacts: positive break mechanism for safe DC switching
Mounting: panel or enclosure mounting
Compliance: IEC 60947-3 standard for DC switching
Manufacturer role: Factory-direct DC isolator switch manufacturer with OEM capabilities

🔹 Use Cases / Industries

Solar photovoltaic DC arrays
Energy storage DC systems
Battery and UPS DC distribution
Telecom DC power racks
Industrial DC control panels

🔹 OEM & Manufacturing Advantage

As a factory-direct DC isolator switch supplier, we support OEM/ODM customization, bulk production, and private-label packaging for global distributors and system integrators.

Technical Details

Type

3P

AS16R

AS20R

AS25R

AS32R

AS40R

AS63R

AS80R

AS80HR

AS100R

AS125R

4P

Agreed heating current
(≤40℃)

16A

20A

25A

32A

40A

63A

80A

100A

125A

IEC rated operational
current le AC-21A/B(≤690V)

16A/16A

20A/20A

25A/25A

32A/32A

40A/40A

63A/63A

80A/80A

100A/100A

125A/125A

IEC rated
operational current
le AC-22A/B

415V

16A/16A

20A/20A

25A/25A

32A/32A

40A/40A

63A/63A

80A/80A

100A/100A

125A/125A

500V

690V

32A/40A

40A/63A

63A/80A

80A/100A

100A/125A

IEC rated
operational current
le AC-23A/B

415V

16A/16A

20A/20A

25A/25A

32A/32A

40A/40A

63A/63A

80A/80A

100A/100A

125A/125A

500V

25A/25A

63A/63A

80A/100A

100A/100A

690V

40A/40A

63A/63A

IEC rated
operational current
le DC-21B

110VDC

16A①

20A①

25A①

32A①

40A①

63A①

80A①

100A①

125A①

250VDC

16A2

20A2

25A2

32A②

40A②

63A②

80A②

100A②

125A②

400VDC

16A3

20A3

25A3

25A③

40A③

63A3

IEC rated
operational power
(3Phse)AC-23A/B

415V

7.5KW

9KW

11KW

15KW

18.5KW

30KW

37KW

45KW

55KW

500V

690V

11KW

15KW

Short circuit withstand current of fuse protection (kA rms expected value)

Fuse class

16A

20A

25A

32A

40A

63A

80A

100A

125A

Rated conditional
short-circuit current

50kA

25kA

Short circuit withstand current of circuit breaker for protection,any circuit breaker that can trip within 0.3s

Rated short-time
withstand current

2.5kA

3kA

5kA

Short circuit performance (unprotected)

Rated short-time
withstand current

1.26kA

1.5kA

2.75kA

Rated short circuit
making capacity

1.8kA

2.1kA

3.9kA

Cross area of terminals

1.5~16mm²

2.5-35mm²

10~70mm²

Rated insulation voltage Ui

800V

Ratedimpulse withstand
voltage Uimp

8kV

Mechanical Endurance

100000

Ambient Temperature

Operating -25°℃..+55℃/Storage -40℃..+70℃

1. Each pole is usedas positive and negative
2. Three poles are used in series with positive and negative poles,of which two poles are in series, and the other is negative
3. Four poles are used in serieswith positive and negative poles

Applications

LYAS80 Switch-disconnectors are widely used in Power Distributionsystems and Automation systems for Buildings, Power, Petrochemicaland other industries, can effectively solve the problems of emergencydisconnection, safety disconnection, machine control and motor control.
With integrated isolation, breaking and switching function, the highperformance design means these products can be easily changed formLoad lsolation Switches to Cam Switches and provide highly innovativesolutions for many application.

FAQ – LYAS80 DC Isolator Switch

What is the primary function of the LYAS80 DC Isolator Switch?
It provides safe manual disconnection of DC circuits for maintenance, inspection, or emergency shutdown.
What voltage systems is LYAS80 suitable for?
Designed for use in medium- to high-voltage DC systems such as solar PV arrays and energy-storage DC buses.
Is the LYAS80 suitable for photovoltaic (PV) installations?
Yes — ideal for isolating DC strings between PV panels and inverters.
What standard does this switch comply with?
It complies with IEC 60947-3, ensuring safe DC isolation performance.
Can the isolator be OEM customized?
Yes — our factory provides OEM/ODM branding, packaging, and technical customization.
Where is the isolator typically mounted?
It can be installed in DC combiner boxes, inverter cabinets, or standalone DC distribution panels.