Weatherproof Solar DC PV Isolating Switch 32A 1200V Electrical IP66 Isolator Switch
Brand Model: Korlen Series Weatherproof Isolating Switch
KNH5-40 series photovoltaic DC isolation switch is suitable for rated voltage DC1200V and below, rated current 32A and below power system, the product can be used as infrequent switch and break, play the role of isolating the break line, can be widely used in 1-20kW inverter, controller, DC bushbox, For residential or commercial photovoltaic solar power generation systems (on-grid/off-grid). The arc time is less than 2ms, so that the photovoltaic solar system is effectively disconnected
Standard |
IEC60947-3 |
Rated operating voltage(Ue) |
300V/600V/800V/1000V/1200V |
Rated insulation voltage(Ui) |
1200V |
Rated operating current(Ie) |
32A |
Rated short-time withstand current(Icw) |
1kA/1S(4,4S,4B);1.7kA/1S(2H) |
Rated short-circuit current(Icn) |
3kA |
Rated impulse withstand voltage(Uimp) |
8.0kV |
Ingress protection |
IP66 |
For rated voltage DC1200V and below, rated current 32A and below power system
For residential or commercial photovoltaic solar power generation systems(on-grid/off-grid)
Used as infrequent switch and break, play the role of isolating the break line
Arc time is less than 2ms, effectively disconnected
Using type: DC-PV1, DC-PV2
Core Advantages:
Industrial-grade Protection: IP66 protection rating, wide operating temperature range from -40°C to +80°C, suitable for extreme environments such as typhoons and salt spray.
Modular Design: Supports flexible combinations of single-pole (20-32A), double-pole (32-63A), and triple-pole (63A).
International Certification: Compliant with IEC60947-3 certification, meeting the 1500V withstand voltage requirements of photovoltaic DC systems.
Size Optimization: Dimensions of 108x106.8x200mm (length x width x height), providing a 15% increase in internal space compared to competitors, and supporting 10mm² cable wiring.
Double Metal Clamping System: Patented V-shaped copper alloy contacts, self-locking crimping (6-8mm stripping length), with a contact resistance <50μΩ when torque ≥ 3N·m.





Q1: Are you a trading company or a manufacturer?
We are Integration of industry and trade, our company has a history of 40 years. We have been specializing in the production of a series of photovoltaic electrical products, such as circuit breaker, pv combiner boxes, pv connector, surge protector, pv fuses, pv tool accessories and etc.
Q2: If OEM is acceptable?
We can provide OEM and ODM services. We have many different specifications and appearances for customers to choose.
Q3: Do you provide sample? Free or charge?
We can provide free samples to customers, but only one piece, but customers need to bear the freight. For some special products, we also offer free samples. Considering their particularity, we usually refund the sample fees to customers after they place formal orders.
Q4: How long is your delivery time?
Our delivery time is determined according to the purchase quantity. Generally, it is about 3-40 days, less than 300 pieces within 5 days, 300-2000 pieces within 7-15 days, 2000-20000 only within 15-40 days.
Q5: How to ensure safe isolation in high humidity environments?
Korlen PV isolation switch uses high insulation material, high insulation resistance, high humidity insulation performance is not significantly affected, prevent leakage, ensure safe isolation.
Q6: Does it meet the safety standards of the special area?
Yes, in accordance with international and national standards, such as IEC standards, design and manufacturing have taken into account special regional conditions.
Q7: Does the rated current carrying capacity decrease at low temperatures?
No. Korlen PV isolators have the ability to adapt to harsh environments, and their rated current carrying capacity is determined through rigorous testing.
Q8: How to ensure long life operation?
Korlen PV isolation switches are made of high-quality materials and advanced technology, durable materials against wear and corrosion, rigorously tested, and long mechanical and electrical life.
Q9: What are the countermeasures for unstable performance?
Instability rarely occurs, if there is a comprehensive test (contacts, insulation, internal connections, etc.), for problem repair or replacement, there is a professional after-sales team to provide support.