HK18-125/4
KCISE
HK18-125/4
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The HK18 PV Isolator Switch is a specialized Manual Knife Switch designed for safe circuit isolation and disconnection in solar photovoltaic (PV) systems. As a 200A Photovoltaic Knife Switch, it operates at AC 50Hz with a Rated Voltage of 400V, making it ideal for infrequent manual switching in residential, commercial, and industrial PV distribution networks. Compliant with GB/T14048.3 Standard and classified under AC-20B Usage Category, this Manual Disconnector enhances personal safety by preventing accidental electric shock and ensuring secure circuit isolation during maintenance. Available in models like HK18-125/4, HK18-160/4, and HK18-250/4, it caters to diverse PV system current demands (63A to 200A).
The HK18-250/4 PV Isolator Switch supports a maximum Rated Current of 200A, handling high-power PV arrays without overheating. This ensures stable performance in large-scale installations, such as commercial rooftop or utility-scale PV plants.
With an IP20 Protection Rating, the switch shields internal components from dust ingress. This maintains reliability in indoor electrical cabinets and harsh industrial environments, reducing the risk of performance degradation.
The switch features a “Do not operate with load” safety instruction and structural design that prevents switching under load. This minimizes arc flash risks, protecting both users and sensitive PV equipment (e.g., inverters) from damage.
Boasting Mechanical Endurance of 10,000 cycles and Electrical Endurance of 1,500 cycles, the Manual Knife Switch delivers a long service life. This reduces replacement frequency and lowers long-term maintenance costs for PV projects.
It resists Rated Impulse Withstand Voltage of 6kV, protecting against voltage surges common in PV systems (e.g., lightning-induced surges). This ensures system stability even in unpredictable weather conditions.
Product name | Photovoltaic Knife Switch | |||||
Model No. | HK18-125/2 | HK18-125/4 | HK18-125/4 | HK18-125/4 | HK18-160/4 | HK18-250/4 |
Number of poles | 2 | 4 | 4 | 4 | 4 | 4 |
Rated current | 63A | 63A | 100A | 125A | 160A | 200A |
Rated voltage | 400V | |||||
Rated frequency | 50Hz | |||||
Rated impulse withstand voltage | 6kV | |||||
Using category | AC-20B | |||||
Rated short-circuit withstand current | 1.89kA | |||||
Rated short-circuit closing capacity | 2.69kA | |||||
Mechanical endurance | 10000 | |||||
Electrical endurance | 1500 | |||||
Certification | CCC, GB/T, IEC | |||||
Warranty | 2Years | |||||
Working environment | Temperature: -25°C~+70°C Humidity: <95% Altitude: ≤2000m | |||||
We offer competitive Bulk Order Discounts for HK18 PV Isolator Switch purchases, ideal for EPC contractors and distributors managing large PV projects. This helps reduce overall project costs without compromising quality.
Upon request, we provide detailed Quality Test Reports for each batch, verifying compliance with GB/T14048.3 Standard and ensuring product authenticity. This supports your project’s compliance audits.
Our after-sales team offers 24/7 After-Sales Response to address issues like installation guidance or warranty claims. This minimizes project downtime and ensures smooth operation of your PV system.
We provide step-by-step Installation Guidance (including wiring diagrams) for the Manual Disconnector. This helps technicians avoid wiring errors and ensures safe, code-compliant operation.
We offer flexible payment terms for global clients, supporting secure transactions (e.g., L/C, T/T) and facilitating smooth supply chain management for international PV projects.
HK18-125/4 supports a maximum current of 125A, while HK18-250/4 handles up to 200A. Choose the model based on your PV system’s total output current to ensure optimal performance.
It has an IP20 Protection Rating, so it is recommended for indoor use or outdoor enclosures with additional weatherproofing (e.g., rain shields) to resist moisture and extreme temperatures.
Yes—we strongly recommend professional installation following our Installation Guidance to comply with safety standards and avoid electrical hazards (e.g., incorrect wiring).
It is certified with GB/T14048.3, CCC, and IEC, meeting both national and international safety and performance requirements for PV system components.
The HK18 PV Isolator Switch is a specialized Manual Knife Switch designed for safe circuit isolation and disconnection in solar photovoltaic (PV) systems. As a 200A Photovoltaic Knife Switch, it operates at AC 50Hz with a Rated Voltage of 400V, making it ideal for infrequent manual switching in residential, commercial, and industrial PV distribution networks. Compliant with GB/T14048.3 Standard and classified under AC-20B Usage Category, this Manual Disconnector enhances personal safety by preventing accidental electric shock and ensuring secure circuit isolation during maintenance. Available in models like HK18-125/4, HK18-160/4, and HK18-250/4, it caters to diverse PV system current demands (63A to 200A).
The HK18-250/4 PV Isolator Switch supports a maximum Rated Current of 200A, handling high-power PV arrays without overheating. This ensures stable performance in large-scale installations, such as commercial rooftop or utility-scale PV plants.
With an IP20 Protection Rating, the switch shields internal components from dust ingress. This maintains reliability in indoor electrical cabinets and harsh industrial environments, reducing the risk of performance degradation.
The switch features a “Do not operate with load” safety instruction and structural design that prevents switching under load. This minimizes arc flash risks, protecting both users and sensitive PV equipment (e.g., inverters) from damage.
Boasting Mechanical Endurance of 10,000 cycles and Electrical Endurance of 1,500 cycles, the Manual Knife Switch delivers a long service life. This reduces replacement frequency and lowers long-term maintenance costs for PV projects.
It resists Rated Impulse Withstand Voltage of 6kV, protecting against voltage surges common in PV systems (e.g., lightning-induced surges). This ensures system stability even in unpredictable weather conditions.
Product name | Photovoltaic Knife Switch | |||||
Model No. | HK18-125/2 | HK18-125/4 | HK18-125/4 | HK18-125/4 | HK18-160/4 | HK18-250/4 |
Number of poles | 2 | 4 | 4 | 4 | 4 | 4 |
Rated current | 63A | 63A | 100A | 125A | 160A | 200A |
Rated voltage | 400V | |||||
Rated frequency | 50Hz | |||||
Rated impulse withstand voltage | 6kV | |||||
Using category | AC-20B | |||||
Rated short-circuit withstand current | 1.89kA | |||||
Rated short-circuit closing capacity | 2.69kA | |||||
Mechanical endurance | 10000 | |||||
Electrical endurance | 1500 | |||||
Certification | CCC, GB/T, IEC | |||||
Warranty | 2Years | |||||
Working environment | Temperature: -25°C~+70°C Humidity: <95% Altitude: ≤2000m | |||||
We offer competitive Bulk Order Discounts for HK18 PV Isolator Switch purchases, ideal for EPC contractors and distributors managing large PV projects. This helps reduce overall project costs without compromising quality.
Upon request, we provide detailed Quality Test Reports for each batch, verifying compliance with GB/T14048.3 Standard and ensuring product authenticity. This supports your project’s compliance audits.
Our after-sales team offers 24/7 After-Sales Response to address issues like installation guidance or warranty claims. This minimizes project downtime and ensures smooth operation of your PV system.
We provide step-by-step Installation Guidance (including wiring diagrams) for the Manual Disconnector. This helps technicians avoid wiring errors and ensures safe, code-compliant operation.
We offer flexible payment terms for global clients, supporting secure transactions (e.g., L/C, T/T) and facilitating smooth supply chain management for international PV projects.
HK18-125/4 supports a maximum current of 125A, while HK18-250/4 handles up to 200A. Choose the model based on your PV system’s total output current to ensure optimal performance.
It has an IP20 Protection Rating, so it is recommended for indoor use or outdoor enclosures with additional weatherproofing (e.g., rain shields) to resist moisture and extreme temperatures.
Yes—we strongly recommend professional installation following our Installation Guidance to comply with safety standards and avoid electrical hazards (e.g., incorrect wiring).
It is certified with GB/T14048.3, CCC, and IEC, meeting both national and international safety and performance requirements for PV system components.
