Low Voltage Load Break Switch Insulation Distance Copper T3 Contact

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low voltage AC 400V switchgear / switchboard with load break switch Introduction Load Break Switch mainly used for "isolation power, switching operation, to connect and cut off the small current circuit", no arc function. When the disconnector is in the sub-position, there is an insulation distance and a clear disconnect mark between the contacts. In the joint position, the current under normal circuit conditions and the abnormal conditions (such as short circuit) The current of the switching device. Disconnector (commonly known as "knife gate"), that is, rated voltage below 1kV disconnector, usually referred to as the disconnector, is the most used in high voltage switch electrical appliances, its own working principle and structure is relatively simple, but because The use of large, high reliability requirements, the substation, power plant design, the establishment and safe operation of the impact are larger. Is the main feature of the disconnector is no arc suppression capability, only in the absence of load current in the case of sub-combined circuit. Disconnector is used for all levels of voltage, used to change the circuit connection or the line or equipment and power supply isolation, it is no drying capacity, can only use other equipment to disconnect the line after the operation. Generally associated with the switch with a load when the wrong operation of the interlock device, and sometimes need to pin to prevent the failure of the magnetic force under the switch off. Parameters - - - - Conventional current | 160A | 250A | 630A | 1600A | 3150A | Rated current In(A) | 160 | 250 | 315 | 400 | 500 | 630 | 1000 | 1250 | 1600 | 2000 | Rated insulation voltage Ui (V) | 690 | 1000 | Dielectric strength (V) | 1890 | 1890 | 1890 | Rated surge-resistant voltage Uimp KV | 8 | Rated working current | 380v | AC-21B | 160 | 250 | 315 | 400 | 500 | 630 | 1000 | 1250 | 1600 | 2000 | AC-22B | 160 | 250 | 315 | 400 | 500 | 630 | 1000 | 1250 | 1600 | 2000 | AC-23B | 160 | 250 | 315 | 400 | 500 | 630 | | | | | 660V | AC-21B | 160 | 250 | 315 | 400 | | | 1000 | 1000 | 1600 | 2000 | AC-22B | 160 | 160 | 315 | 315 | 315 | 315 | 800 | 800 | 800 | 1000 | AC-23B | 80 | 125 | | | | | | | | | Motor power | 380V | 80 | 132 | 160 | 220 | 280 | 315 | 560 | 560 | 560 | 710 | P(Kw) | 660V | 75 | 110 | 185 | 185 | 185 | 185 | 475 | 475 | 475 | 750 | Rated short-time withstand current lcw (kA Rms) 0.1s/1s | 8 | 12 | 25 | 25 | 25 | 25 | 50 | 50 | 50 | 50 | Rated breaking capability Icn (A Rms) AC23 380 V | 1000 | 1600 | 2520 | 3200 | 4000 | 5040 | 3000 | 3750 | 4800 | 6000 | Rated making capability Icm (A Rms)AC23 380V | 1600 | 2500 | 3150 | 4000 | 5000 | 6300 | 3000 | 3750 | 4800 | 6000 | Rated shortcurrent making capabilityIcm | 13.6 | 17 | 40 | 40 | 40 | 40 | 70 | 70 | 70 | 105 | (kA peak value) | Mechanical durability 380V | 1400 | 1400 | 800 | 800 | 800 | 800 | 500 | 500 | 500 | 300 | Electical curability 380V | 200 | 200 | 200 | 200 | 200 | 200 | 100 | 100 | 100 | 100 | Operation moment (Nm) | 6.5 | 10 | 14.5 | 14.5 | 14.5 | 14.5 | 37 | 37 | 60 | 60 | Weight (kg) | 3 poles | 1.3 | 2.2 | 4.3 | 4.3 | 4.7 | 4.7 | 10.5 | 10.5 | 16 | 25.5 | 4 poles | 1.5 | 2.6 | 5.4 | 5.4 | 6 | 6 | 13 | 13 | 20 | 37.5 | - - - - Dimensions Packaging - - - - NO. | Size(mm) | QTY(psc) | G.W.(KG) | HGL-160/3 | 44*31*33.5 | 18 | 22.6 | HGL-250/3 | 39*37*36 | 12 | 25.5 | HGL-400/3 | 50*29*32 | 4 | 19 | HGL-630/3 | 50*29*32 | 4 | 21 | HGL-1000/3 | 45*36*21 | 1 | 13.2 | HGL-1250/3 | 45*36*21 | 1 | 14.6 | HGL-1600/3 | 45*36*21 | 1 | 15.6 | HGL-2500/3 | 47.5*40.5*37 | 1 | 35 | HGL-3150/3 | 53*40.5*37 | 1 | 50 | - - - - Picture

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ZHEJIANG GRL ELECTRIC COMPANY

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