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MOREDAY MDIS DC disconnector 1200V DC 32A panel mounting 2p 3p 4p solar isolator switch.

  • Panel mounting
  • 600V-1200V at 16A 25A 32A
  • Arc interruption within 3ms.
  • Customizable shell
  • RoHS material

Stable Delvery Time

Technical Support

2 Years

MOREDAY MDIS-40 DC Isolator Switch

MOREDAY MDIS-40 DC Isolator Switch

The MDIS-40 DC Isolator Switch from Moreday is a pivotal component for solar power systems, ensuring both safety and efficiency in photovoltaic installations. Designed with precision and built to last, this switch enables maintenance and repair operations to be performed safely, disconnecting the electrical equipment from the circuit.

Key Features and Advantages

MOREDAY MDIS-40 DC Isolator Switch Versatile Current Ratings

Versatile Current Ratings

Available in 16A, 25A, and 32A configurations to suit diverse applications and demands.

High Voltage Operation

Capable of handling up to 1200V, making it suitable for high voltage solar applications.

MOREDAY MDIS-40 DC Isolator Switch High Voltage Operation
MOREDAY MDIS-40 DC Isolator Switch Robust Design

Robust Design

 Equipped with a flame-retardant VO nylon body and copper contacts to ensure durability and a high degree of electrical conductivity.

Enhanced Safety

Features a rotary switch handle that provides a clear indication of the switch status, enhancing safety and usability.

MOREDAY MDIS-40 DC Isolator Switch Enhanced Safety
MOREDAY MDIS-40 DC Isolator Switch Environmental Resistance

Environmental Resistance

The switch is designed to operate in temperatures ranging from -5°C to +40°C and is IP66 rated, ensuring protection against dust and heavy seas.

Choose Moreday’s MDIS-40 DC Isolator Switch for unmatched reliability and safety in solar energy applications. Explore a partnership that extends beyond products—Moreday offers a sustainable future with every component delivered.


Solar power installations

DC power distribution systems

Energy storage systems

Why Choose Moreday?

Certified Quality

With certifications like TUV, CE, CB, and ROHS, Moreday ensures each product meets the highest standards of quality and safety.

Global Presence

Moreday products are utilized in over 100 countries, making us a trusted name in solar energy solutions worldwide.

Innovative Solutions

Continuous development and innovation mean Moreday is at the forefront of the solar technology industry, driving down costs and increasing efficiency for our clients.






Ratings (DC21)


Rated Current

16A 25A 32A



Installation Method

 Rail mounting inside the
distribution box


Retardant VO

Opening Method

Handle 90º Rotary switch

Ambient Temperature


Switch Body

Plastic part nylon

Switch Body

Energized part copper

popular questions


1. What are the specific certifications that the MDIS-40 DC Isolator Switch holds?

The MDIS-40 is certified with TUV, CE, CB, and ROHS, ensuring compliance with the highest safety and quality standards required in solar installations globally.

2. How does the MDIS-40 handle extreme weather conditions?

The MDIS-40 DC Isolator Switch is rated IP66, making it dust-tight and protected against heavy seas or powerful jets of water. Its operating temperature range of -5°C to +40°C also ensures functionality in various environmental conditions.

3. Can the MDIS-40 be used in both residential and commercial solar systems?

Yes, the MDIS-40 is designed for versatility and can be effectively used in both residential and commercial solar installations. Its range of current ratings (16A, 25A, 32A) and high voltage capability (up to 1200V) make it suitable for various applications.

4. What makes the MDIS-40 different from other isolators in the market?

The MDIS-40 stands out due to its robust construction, including a flame-retardant VO nylon body and copper contacts for superior conductivity. Additionally, its clear rotary handle operation provides safe and unmistakable disconnection and reconnection actions.

5. How does installation of the MDIS-40 contribute to system maintenance and safety?

The MDIS-40 enables safe isolation of the photovoltaic system components for maintenance or troubleshooting. Its secure disconnection prevents electrical accidents, protecting both the system and its handlers.

6. Are there any special considerations for installing the MDIS-40 in a solar PV system?

It is recommended that the MDIS-40 be installed by qualified personnel to ensure proper handling and integration into the solar system. It should be mounted inside the distribution box or directly in the solar combiner box, based on the system's configuration.

7. What support does Moreday offer for products like the MDIS-40 after purchase?

Moreday provides a comprehensive customer support service, including installation guidance, troubleshooting, and replacement parts. Our global service network ensures prompt assistance for our clients worldwide.

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