適用范圍 Applicable scope
GTH-220系列熱繼電器適用于交流50Hz,主電路額定電壓660V,電流至630A的電力系統(tǒng)中作為三相交流電動(dòng)機(jī)的過載和斷相保護(hù),具有斷相保護(hù),溫度補(bǔ)償,脫扣指示功能,能自動(dòng)與手動(dòng)復(fù)位,并與GKC系列交流接觸器配合使用,組合電器磁起動(dòng)器。
GTH-220 series thermal relay is suitable for the power system of AC 50Hz,main circuit rated volatge up to 660V,current up to 630A,used as protecting AC three-phase motor against overload and phase losing,and forming electrom-agnetic with starter GKC series AC contactor
It has functions of phase-losing protection temperature campe.trip indication.lt can passively and automatically get back.
型號(hào)及其含義 Model and its meaning

主要技術(shù)參數(shù) The main technical parameters


安裝尺寸圖及接線圖 Installation dimensions and wiring diagram




































