1000V 32A 4p DC Isolator Switch for Solar PV Systems

• Type: High-voltage
• Structure: Double-column Disconnector
• Installation: Indoor High-voltage
• Model NO.: MDIS-40MD
• Operation: Electric
• Grounding Mode: Not Grounding
• Movement Mode: Horizontal Rotary Type
• Number of Poles: Optins
• Grounding: Un Grounded
• Series: Two
• Run: Turn the Horizontal
• Switching Mode: Optins
• Common Model: Mdis-40MD
• Structure of Operating: Electric
• Certification: ISO, RoHS, CE, ISO9001, ISO9002, TUV; CCC; CB
• Brand: Moreday
• Whether The Smart: No
• Max. Current: 32A
• Max. Voltage: 1200V
• Rated Operational Voltage: 500V,600V,800V,1000V,1200V
• Rated Current: 10A,16A,20A,25A,32A
• Number of DC Poles: 2 or 4
• Working Temperature: -40℃TO +85℃
• Standard: IEC60947-3,As60947.3
• Transport Package: Carton/Pallet
• Specification: MDIS-40MD
• Trademark: Moreday
• Origin: China
• HS Code: 8535301090
• Production Capacity: 200000 Piece/Pieces Per Month

Product Description

Product Description

Product Features – DC Isolator Switch

Multiple Pole Options: Available in 2-pole, 3-pole, and 4-pole configurations to meet different DC system requirements.
Simplified Wiring: Features parallel wiring and a larger aperture for faster, easier, and cleaner cable connections.
Distribution Box Compatibility: Designed to fit modular distribution boxes with secure lock-in installation.
Fast Arc Extinguishing: Arc extinction time is less than 3ms, ensuring enhanced safety and system protection.
Modular & Flexible Design: Compact structure with modular flexibility; optional 2P and 4P models.
Certified Quality: Fully compliant with IEC60947-3 (ed.3.2):2015 and DC-PV1 standards, ensuring high reliability for photovoltaic systems.

A DC isolator switch is an electrical safety device that manually disconnects itself from the modules in a solar PV system. In PV applications, DC isolator switches are used to manually disconnect the solar panels for maintenance, installation or repair purposes. In most solar PV installations, two DC isolator switches are connected to a single string. Normally, one switch is placed close to the PV array and the other close to the DC end of the inverter. This is to ensure that disconnection can be achieved at ground and roof level. DC isolators can come in polarized or non polarized configurations.

Photovoltaic DC isolated switch	Rated current 16A 25A 32A
Product number MDIS-40-16/25/32A DC	Rated voltage 1200V
Opening method Handle 90º Rotary switch	Housing material PC+ABS
Ambient temperature -5ºC~40ºC	Shell waterproof rating IP66NW
Shell flame rating V1	Housing environment Outdoor UV (UV)
Switch body energized part copper	Inlet hole size M20 knockout hole
Switch body plastic part nylon	Switch body plastic flame retardant VO

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Company Profile

Mindian Electric Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing, and sales, specializing in smart power distribution and renewable energy solutions. Our products serve residential, commercial, and industrial sectors, and cover:

&



Other electrical protection and connection devices

With advanced manufacturing equipment and automated testing systems, our products are certified by CE, CB, TÜV, SAA, and exported to more than 60 countries. We've supported a cumulative installed capacity of over 5GW.

Backed by strong R&D and engineering capabilities, Mindian Electric offers both standard products and customized OEM/ODM services. We are committed to delivering safe, reliable, and efficient power solutions to drive the global transition toward clean energy and smart power systems.

FAQ

1. Are you a trading company or a manufacturer?
We are a manufacturer of solar system products, with a cumulative installed capacity exceeding 5GW.

2. Can you provide samples for testing?
Yes, we offer free samples for all clients.

3. What is your delivery time?

Samples: 1–2 days
Small orders: 3–5 days
Bulk orders: 7–10 days
Delivery time depends on order quantity and payment confirmation.

4. Do you accept OEM orders?
Yes, we accept OEM orders with proper authorization.

5. What after-sales service do you provide?
We supply necessary spare parts and offer online technical support from our English-speaking engineers.

6. What certifications do you have?
Our products are certified with CE, CB, TÜV, SAA, and more.

7. What services does your company provide?
We have a professional engineering team for product design and mold development to meet custom requirements. Our sales team provides full support from pre-sales consultation to after-sales service.