HR6 series fuse isolator switch (referred to switch) is designed for the distribution circuit and electromotor of circuit with high short circuit current, with rated AC voltage 380V and 660V ( 45-62Hz ) , conventional thermal current up t0 630A.It is used as power switch, switch disconnector and emergent switch, and with the function of circuit protection, but not used as a direct open or close single electromotor popularly. This product is in conformity with standard GB14048.3(IEC60947-3).
Structure Characteristic:
The switch is composed of base, cover and arc chute, all these parts are made of arc-resisting plastics, it is whole plastic structure. The static contact is directly installed on the base, the arc chute is easily mounted and dismounted, each arc chute has two parts: inner room and outer room, it adopts multi-pieces of metal arc-blowout grid which increase the arc-blowout capacity and prolong the service life of the contact
NT type fusing unit is fixed inside the cover, the cover can be rotated along the supporting unit in fan shape, it has a relative big electric isolation distance which can meet the demands of the isolating switch; The cover can be dismounted from the base easily which make the installation and replacement of the fusing unit easy There are three group of installation hole on the base, which and meet the installation requirements of various switchgear cubicle and panel. Auxiliary contact can be mounted at the two side of the switch on demands; it can give out the signal of opening and closing the switch.
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