HD11F and HS11F series single-changover and double changeover protecting knife switch
is a new product based on HD11
HS11F series developed by our company.They are the
prefect replacements of HD11
HS11F series product.They greatly increase the error touch
to the conductive part in operation.They are mainly uesd to infrequently make and break,isolate
the power supply with hand in the low voltage distributing equipment.
This production is in comforming with standard GB14048.3 IEC60947-3.

NORMAL WORK CONDITIONS AND INSTALLATION CONDITIONS

1. Ambient temperatue: -5¡ãC~+40¡ãC
2. Ambient:shall not exceed 2000m.
3. The atmosphere condition:The relative humidity shall not exceed 50% when the environmental
temperatue is +40¡ãC in installing place; And the relative humidity may be higher at the
lowertemperature condition.Such as when the lowertemperature condition.Such as when the
humidity is 90% when the temperature is +20¡ãC.It shall take some special management to avoid
the dew occurs on the product surface due to temperature change.
4. Pollution grade:III
5. The product shall be installed in the place without remarkable shake,strike and quiver,rain and
snow,in the medium without gas and conductive dust,which can make the metal go rust and
affect insulation performances.