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DW17(ME)Universal
Circuit Breaker
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ZW8-12-630-20
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ZW8-12
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ZW1-12
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| ZW8-12 Series vacuum breaker is three-phase
AC 50Hz high voltage indoor switchgear with rated voltage 12kV. It
is mainly used to make and break load current, overload current and
short-circuit current of mini power system. The whole structure of
the products are three phases in one cabinet, and three-phase vacuum
arc-chutes were placed in metal cabinet. The operating mechanism of
the products is CT23 type spring energy storing mechanism, which can
be classified to electrical type and manual type. |
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Order
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Items
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Unit
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6.3kA
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12.5kA
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20kA
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1
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Rated voltage
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kV
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12
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2
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High operating voltage
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kV
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12
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3
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Rated current
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A
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630
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4
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Rated short-circuit make and break current
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kA
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6.3
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12.5
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20
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5
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Rated short-circuit open-close current(peak)
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kA
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16
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31.5
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50
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6
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Rated peak endurable current
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kA
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16
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31.5
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50
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7
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Industrial endurable voltage
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kV
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42
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8
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Impulse endurable voltage
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kV
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75
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9
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Mechanical life
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Times
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10000
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10
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Average opening speed
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m/s
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0.8-1.4
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11
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Average closing speed
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m/s
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0.5-0.9
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12
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Closing time
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S
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¡Ü0.1
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13
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Every phase resistance of main circuit
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¦Ì ¦µ
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¡Ü200
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°
