| 1. | " automatic reset n . c . series connected thermal overload protection , two moisture sensing probes , prelubricated shaft bearings and class f insulation . * efficiencies include all mechanical losses including mechanical seals . 自动重置n . c .系列,连接过热保护装置,两个潮气检测探头,预润滑轴承和f级绝缘。 *效率包括所有机械密封中的机械损失。 |