

Malujiao Industrial Zone,Beibaixiang Town,Yueqing ,Zhejiang,China 325603
MOREDAY MDIS-40MD IP66/IP66NW DC isolator 1200V DC 32A 2 pole 4 pole solar isolator switch TUV/ CE /CB certified.Its IP66 rating provides robust protection against environmental elements, complemented by UV-resistant and flame-retardant materials for durability and safety compliance.
Stable Deliivery Time
Technical Support
2 Years
The MDIS-40MD DC Isolator is a cutting-edge safety device, essential for maintaining the operational integrity and safety of photovoltaic (PV) systems. With a robust design certified for outdoor use, this isolator ensures continuous performance even in harsh environmental conditions. The isolator is specifically crafted to meet the rigorous demands of the solar power industry, providing reliable disconnection under load conditions.
Encased in a PC+ABS housing with a V1 flame rating and an IP66NW certification, the MDIS-40MD guarantees superior durability and resistance to environmental factors, including UV exposure and water ingress.
Available in various ratings (16A, 25A, 32A), it accommodates a wide range of operational voltages up to 1200V, making it suitable for diverse installation requirements.
Features a user-friendly 90º rotary handle, allowing effortless operation. Its compact design (83mm61mm46mm) enables easy integration into PV systems without requiring extensive space.
Complies with global safety standards, including CE and TUV certifications, ensuring its suitability for both domestic and international markets.
Continuously advancing in high-tech solar technology with over 30 patents.
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Specification | Parameter |
Maximum Continuous Operating DC Voltage | 600V/1000V/1200V/1500V |
Nominal Discharge Current (8/20 µs) | 20 kA |
Impulse Discharge Current (10/350 µs) | 6.25 kA |
Total Discharge Current (10/350 µs) | 12.5 kA |
Total Discharge Current (8/20 µs) | 40 kA |
Maximum Discharge Current (8/20 µs) | 40 kA |
Voltage Protection Level | 2200V/4000V/4400V/5200V |
Residual Current at Uc | < 0, 5 mA |
Response Time | < 25 ns |
Short-Circuit Current Rating | 2000 A |
Operating Temperature Range | -40 ºF to +158 ºF [-40 ºC to +70 ºC] |
Permissible Operating Humidity | 5%-95% |
Atmospheric pressure and altitude | 80k Pa-106k Pa / -500 m-2000 m |
Mounting | 35 mm DIN Rail, EN 60715 |
Degree Of Protection | IP 20 (built-in) |
Housing Material | Thermoplastic: Extinguishing Degree UL 94 V-0 |
Thermal Protection | Yes |
Operating State / Fault Indication | Green ok / Red defect |
Remote Contacts (RC) | Optional |
RC Switching Capacity | AC: 250V / 0.5 A; DC: 250V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A |
RC Conductor Cross Section (max) | 16 AWG (Solid) / 1.5 mm2 (Solid) |
The MDIS-40MD DC Isolator is used to safely disconnect the DC power in photovoltaic systems. This is crucial during maintenance or emergency situations to ensure the safety of personnel and protect the equipment from potential electrical hazards.
The MDIS-40MD is designed with a high-grade PC+ABS housing rated at IP66NW, making it dustproof, waterproof, and UV-resistant. This ensures that it can withstand harsh weather conditions, including heavy rain and strong sunlight, making it ideal for outdoor installations.
Yes, the MDIS-40MD can handle various voltage levels up to 1200V DC. It is available in different models to support 16A, 25A, and 32A configurations, accommodating a broad range of operational requirements in solar energy systems.
The MDIS-40MD is designed for easy installation via rail mounting inside a distribution box. The compact design allows for efficient use of space and straightforward setup. Detailed installation instructions are included with the product and can also be found on our website.
The MDIS-40MD requires minimal maintenance due to its durable construction. However, regular visual inspections to check for any signs of wear or damage and ensuring that the isolator is free from dust and debris are recommended. Always ensure the system is powered down before performing any maintenance checks.
The MDIS-40MD is certified under multiple international standards, including CQC, CE, CB, TUV, and ROHS. These certifications attest to its safety, quality, and environmental compliance, making it a reliable choice for global applications.
By providing a reliable means to completely disconnect DC power, the MDIS-40MD prevents accidental electrical shocks and reduces the risk of fire by isolating electrical components during faults or when maintenance is being performed.
If the MDIS-40MD shows signs of malfunctioning, immediately disconnect it from the system and contact Moreday technical support. Do not attempt to repair the unit yourself as this may void the warranty. Our support team is available to provide assistance and facilitate repairs or replacements as needed.
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