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A, scope of application
HD series single throw switch, HS series of double throw switch for AC 50Hz, rated voltage up to 380V, the DC voltage to 380V, DC to 440V; complete distribution device rated current to 1500A, as the non frequent manual switch on and off, the DC circuit or isolating switch with.
Among them:
HD11 series of central handle type single shot and double throw switch is mainly used in substation, not cut off the circuit with current, isolation switch with.
HD12 series side handle knife switch, mainly for the power box.
HD13 series of central positive leverage mechanism of knife switch is mainly used for switch cabinet, behind the positive operation repair, operation mechanism is arranged at the front.
HD14 series of lateral frontal operation mechanical knife switch is mainly used for switch cabinet, in front of the front two operation repair, operating mechanism can be installed on both sides of the cabinet.
With a knife interrupter switch can cut off the current load, the other series of knife switch for disconnecting switch.
Two, models and implications
"0" without arc shield; 1 said that the arc shield; for the central handle type: 8 said front plate connector type: 9 said wiring on back of the board type: not only a connection mode, namely the front plate connector.
Pole number: 2 pole, 3 pole, 4 pole
Rated current (A)
Derived symbol: B: BX: BX size is small with rotary handle
Design Code: 11 central handle type, 12 lateral frontal leverage mechanism type, 13 central leverage mechanism type, 14 side handle type.
Group name: HD single throw switch, HS double throw switch.
Three, switching characteristics
1 rated voltage of 380V AC, DC 220, 440V.
2 the rated current is 100, 200, 400, 600, 1000, 1500A.