HG2B In-line Fuse Switch Disconnector
Scope of application
HG2B In-line Fuse Switch Disconnector is suitable for AC rated voltage 660V and below, AC 160A~630A, rated AC frequency 50Hz. With load operation, the first current transformer and bar switch integration, with the advantages of convenient adjustment of upper-lower inlet-outlet, three-phase separate breaking, three phase simultaneous breaking and others, widely used in complete sets of products and imported box substation.
In the distribution system of industrial enterprises, it is mainly used in distribution circuits and motor circuits with high short-circuit currents, which can be used to manually switch on and off the circuit infrequently and isolate the power supply, and can protect the AC circuit from short circuit. The In-line Fuse Switch Disconnector is not suitable for starting and disconnecting a single motor switch.
Meet the standards: GB14048.3, IEC60947-3.
Normal working conditions and installation conditions
1. The ambient air temperature is not higher than +40°C and not lower than -5°C.
2. The elevation of the installation site does not exceed 2000m.
3. Humidity: When the maximum temperature is +40°C, the relative humidity of the air does not exceed 50%, and higher relative humidity may be allowed at lower temperatures, for example, 90% at 20°C. Special measures should be taken for the occasional condensation caused by temperature changes.
4. The pollution level of the surrounding environment is 3.
5. The In-line Fuse Switch Disconnector shall be installed in a place where there is no significant shaking, shock and vibration and there is no rain and snow. At the same time, there shall be no dangerous medium for explosion at the installation site, and there shall be no gas and dust in the medium that can corrode metal and destroy insulation.
Product Features
■ First integration of current transformer and fuse switch
■ With knife edge and arc extinguishing device, it is safe to operate
■ Isolated blade, NT/NH series and common semiconductor melt core (quick melt) can be added
■ Fuse monitor and signal switch can be added
■ Used as main switch, instantaneous breaking capacity up to 50-100kA
■ DNH5 strip fuse type isolation switch with unique process technology
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