Long service life Standing the test of ten thousands opening and closing operation.
启闭试验多达数万次,使用寿命长.
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To prevent the breaker against closing operation when the breaker is in OFF state.
当断路器处于分断状态下,防止断路器合闸.
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A special design make the opening and closing operation are easy.
产品设计独特,开关轻巧容易.
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