NOTE The off position does not imply an all-pole disconnection.
注：断开位置并不意味着全极断开。
It is used as a protector of all-pole disconnection, which is suited for water heater, water boiler, cylinder washer.
适用于整机全极断开保护的热水器，开水器、洗衣机等。
It is used as a protector of all-pole disconnection, which is suited for water heater, water boiler, cylinder washer.
适用于整机全极断开保护的热水器，开水器、洗衣机等。
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