Anti-mistake Knife Switch

The HD11F series photovoltaic knife switch is designed for manual isolation in solar power, energy storage, electrical grid, and industrial distribution systems. It is suitable for infrequent manual connection and disconnection of control circuits, as well as isolation circuits used in low-voltage distribution equipment.

Compared with traditional knife switches, the product provides easier installation and wiring. Rail and base plate installation options help adapt to different cabinet layouts, while the wiring design allows connection without removing the cover. Thickened copper conductive parts, a fastening ring structure, and optional arc isolation plates help improve contact stability and operational safety.

• Photovoltaic and power distribution use: Suitable for solar PV systems, energy storage cabinets, electrical grids, and industrial control circuits.
• Convenient installation: Supports rail mounting and base plate mounting to simplify cabinet assembly and maintenance.
• Cover-free wiring design: Wiring can be completed without opening the cover, making installation more efficient.
• Stable conductive structure: Full copper parts are thickened to support reliable current carrying performance.
• Secure contact design: Fastening ring structure helps ensure tight contact and reduce looseness during operation.
• Enhanced safety option: Arc isolation plates can be installed for additional operational protection.
• Multiple current ratings: Available from 200A to 1500/1600A to match different distribution requirements.
• Standards compliance: Designed according to GB/T14048.3 and IEC60947-3 standards.

This isolating device is suitable for circuits that require visible manual operation, reliable isolation, and safer maintenance access in low-voltage power systems.

• Photovoltaic combiner and distribution systems
• Energy storage power cabinets
• Industrial power distribution panels
• Electrical grid auxiliary distribution circuits
• Household appliance distribution systems
• Control circuits requiring infrequent manual connection and disconnection

• Confirm the rated current, rated voltage, pole number, wiring direction, and auxiliary contact requirement before installation.
• Select rail mounting or base plate mounting according to the cabinet structure and installation space.
• Install arc isolation plates where additional safety protection is required.
• Use the product only within the specified voltage, current, frequency, and utilization category range.
• Installation, wiring, inspection, and maintenance should be performed by qualified electrical personnel after power is disconnected.
• For PV and energy storage systems, confirm the DC working voltage, isolation position, and upstream protection coordination before selection.

When selecting a suitable model, provide the rated working current, pole number, wiring method, auxiliary contact requirement, installation method, cabinet size, and application environment. For photovoltaic or energy storage projects, also confirm the system voltage, manual isolation position, and expected short-time withstand current.

Send us your electrical parameters, installation requirements, wiring direction, and quantity. Our team can help match the correct HD11F series configuration for safe, reliable, and efficient power isolation.