HD,HS series open knife switch and knife transfer switch (hereinafter refered to switch)are suitable in the assembled distrbuting equipment of AC 50Hz,rated voltage up to 380V, or DC up to 220V and rated current up to 3000A, used to infrequently make and break the AC or DC circuit in hand or acted as isolating switches. In which: 1. Central handgrip style switches are mainly used in power station and acted as isolating switches,They are not intended for break the circuit with current. 2. Side handgrip style switches are mainly used in power box. 3. Central front lever operating mechanism style switches are mainly used in the front side operated,rear maintained switchgear cubicle, the operating me chanism is fixed in the front of the cubicle. 4. Side front lever operating mechanism style switches are mainly used in the front side operated,front maintained switchgear cubicle, the operating mechanism can be fixed on both sides of the cubicle. 5. The knife switch equipped with arc chute can cut off the current load, knife switches of other series are acted as isolating switches only. The products are in conformity with the standard GB14048.3(idtIEC60947-3).
5. About us:
1.We are professional manufacture factory of disconnector switch & fuse switch disconnector & changeover switch etc. for more than 20 years.
2.Provide OEM, ODM service, owning ourself mould shop , realize the fully producing from mould making, spare parts till finished products.
3.Standard copper material and fully set inspection equipment to assue the quality.
4.Economically priced,exquisitely made.Experienced&responsible QC that you can rely on
5. Adequate supply capacity , punctual delivery tim
Zhejiang GRL Electric Co.,Ltd. was founded in 1992, is a professional manufacturer of low voltage disconnector switch, knife switch, fuse switch disconnector, dual power automatic changeover switches and other low-voltage electrical products.The products are widely used in petroleum, chemical, metallurgical,power, construction and other industries of the low voltage distribution system.Our company is located in Yueqing Economic Development Zone,Yueqing, near Liushi, Wenzhou---the Chinese ... View detail