Description
The HD and HS series are protected single-throw and double-throw knife switches for low-voltage distribution. They are used for infrequent manual making and breaking and for isolating the power supply, and their protected design improves personal safety and helps prevent accidental electric shock.
Design and features
- Protected single-throw and double-throw designs.
- Improved protection against accidental electric shock.
- Manual, infrequent making and breaking.
- Reliable power isolation for maintenance.
- Complies with GB 14048.3 and IEC 60947-3.
Where it fits
- Low-voltage distribution equipment and panels.
- Isolation of power supplies for maintenance.
- Industrial and building electrical installations.
Selection and ordering
Confirm the rated voltage and current, whether single-throw or double-throw switching is needed, the pole count and the terminal arrangement. We will confirm a suitable configuration and provide a quotation.
FAQ
Where is a knife switch used?
In low-voltage distribution equipment for infrequent manual making and breaking of circuits and for isolating the power supply during maintenance.
What is the difference between single-throw and double-throw?
A single-throw switch connects or disconnects one circuit; a double-throw switch can transfer the supply between two circuits. Both are available in the HD and HS series.
Which standard does it comply with?
GB 14048.3 and IEC 60947-3.
Request Quote
Tell us your specifications, quantity, or application scenario and we will reply with a tailored quote.
