DC Load Break Switch has been developed to provide making and breaking capacity to suit different situations. The safety and reliability are ensured by fast operating speed, safe interruption of the arc and so on.
Enhanced Safety
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High short time withstand current rating and high breaking capacity
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Electrical interlocking by wiring to associated protection relay ETCPU200
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Fast spring tripping to minimize the time for current interruption
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Circular arc chute structure to ensure fast and thorough arc quenching
Convenient Operation
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Fast spring charge mechanism to reduce operation duty
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High electrical and mechanical endurance to minimize maintenance work
Electrical ratings
Description
ET-LBS
Rated maximum voltage [V]
1500
Rated insulation voltage [kV]
3.82
Basic impulse withstand voltage [kV]
12
Rated current [A]
1000
2000
1250
2500
1600
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Short circuit breaking current [A]
6400
10000
Short time withstand current, 1sec [A]
13000
20000
Maximum electrical switching frequency [cycle/h]
120
60
Control operating voltage
220Vac 24 / 48 / 110 / 220Vdc
Operation temperature
-25 to +70°C
According to the type of DC network
Insulated / Network with earthed negative polarity / Network with the mid-point earthed
