Switch-Disconnector LYD1-125

Description：

Capable of switch electric circuit with load
Adaptable to padlock device
Contact position indication
Capable of quickly releasing stored energy operation
Highlighted of high making and breaking capacity
High short-circuit current withstand capacity
Used as main switch for household and similar installation

The LYD1-125 is a robust AC isolator switch designed for high-current AC circuits, providing safe manual disconnection and reliable isolation for industrial and commercial electrical systems.

🔹 Key Technical Knowledge

Product type: High-current AC Isolator Switch
Rated current: Up to 125A
Function: Manual electrical isolation for protection and maintenance
Application voltage: Low-voltage AC mains
Mounting: Panel or DIN rail mounting (depending on model)
Operation: Smooth ON/OFF handle with clear visual indicator
Compliance: IEC / EN standards for low-voltage switching devices
Manufacturer role: Factory-direct production with OEM/ODM service

🔹 Why choose the LYD1-125 AC Isolator Switch?

Suitable for industrial or high-current applications
Provides simultaneous disconnection of phase and neutral for safety
Designed for heavy-duty operation with high mechanical endurance
Clear ON/OFF position for visual verification of isolation
Compatible with large panel distribution systems and main feeders

🔹 OEM & Manufacturing Advantage

As a professional AC isolator switch factory, we provide high-quality production, OEM/ODM branding, customized ratings, and global supply. LYD1-125 is engineered for heavy-duty applications where safe isolation of high-current AC circuits is critical.

🔹Use Cases / Industries

Industrial control cabinets

Commercial electrical panels

Machinery isolation

Maintenance safety systems

Construction and Feature

Capable of switch electric circuit with load
Adaptable to padlock device
Contact position indication
Capable of quickly releasing stored energy operation
Highlighted of high making and breaking capacity
High short-circuit current withstand capacity
Used as main switch for household and similar installation

Technical Data

Pole No: 1P, 2P,3P,4P
Rated voltage: AC 230V1400V
Rated Current(A):63A,80A,100A,125A
Rated frequency:50/60Hz
Rated short-circuit making capacity: 6kA
Rated short-time withstand current: 2kA within 1sec
Electro-mechanical endurance:10000 cycles
Connection capacity: Rigid conductor 35mm
Connection terminal:
Screw terminal
Pillar terminal with clamp
Installation:
On symmetrical din rail 50mm
Panel mounting
Terminal Connection Height:H=19mm

Compliance

IEC/EN60947-3

Overall &Installation Dimensions

FAQ

1. What is the LYD1-125 isolator switch designed for?
The LYD1-125 AC isolator switch is engineered for manual isolation of AC circuits up to 125 A, enabling safe disconnection during maintenance and emergencies.

2. How does an isolator switch differ from a circuit breaker?
Isolator switches are intended for safe disconnection of power—they do not provide overcurrent protection like circuit breakers.

3. What protection mechanism does it operate on?
It manually opens or closes electrical contacts, creating a visible break in the circuit for maximum safety.

4. What installation locations are typical for this switch?
Commonly installed in distribution boards, equipment panels, and service disconnect points.

5. Is OEM customization supported?
Yes. Our isolator switch factory provides OEM/ODM options, including custom current ratings and branded packaging.