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SIEMENS西門子接觸器3RT1016-1BB41供應主要用于交流50Hz(或60Hz)、額定工作電壓至1000V，在AC-3使用類別下額定工作電壓為380V時額定工作電流至475A的電路中，供遠距離接通和分斷電路或頻繁起動和控制交流電動機，并可與適當的熱過載繼電器組成電磁起動器，以保護可能發生過載的電路。 產品符合GB14048.4和IEC60947-4-1等標準。
SIEMENS德國西門子接觸器3RT1016-1BB41 另一半是活動鐵芯，構造和固定鐵芯一樣，用以帶動主接點和輔助接點的閉合斷開。20安培以上的接觸器加有滅弧罩，利用電路斷開時產生的電磁力，快速拉斷電弧，保護接點。接觸器具可高頻率操作，做為電源開啟與切斷控制時﹐zui高操作頻率可達每小時1200次。接觸器的使用壽命很高，機械壽命通常為數百萬次至一千萬次，電壽命一般則為數十萬次至數百萬次。
SIEMENS德國西門子接觸器3RT1016-1BB41用輔助接點來導通控制回路。主接點一般是常開接點，而輔助接點常有兩對常開接點和常閉接點，小型的接觸器也經常作為中間繼電器配合主電路使用。交流接觸器的接點，由銀鎢合金制成，具有良好的導電性和耐高溫燒蝕性。交流接觸器動作的動力源于交流通過帶鐵芯線圈產生的磁場，電磁鐵芯由兩個「山」字形的幼硅鋼片疊成，其中一個固定鐵芯，套有線圈，工作電壓可多種選擇。為了使磁力穩定，鐵芯的吸合面加上短路環。交流接觸器在失電后，依靠彈簧復位。
SIEMENS西門子接觸器3RT1016-1BB41供應不同型號的適用范圍：
1、3TF48系列交流接觸器主要用于交流50Hz（或60Hz）、額定工作電壓至660V，額定工作電流至 370A的電力系統中接通和分斷電路，并可與適當的熱過載繼電器或電子式保護裝置組合成電磁起動器，以保護可能發生過載的電路。 產品符合GB 14048.4和IEC 60947-4-1等標準。
2、3TF48-9～110交流接觸器（以下簡稱接觸器）主要用于交流50Hz（或60Hz）、額定工作電壓zui高至660V、在AC-3使用類別下額定工作電壓為380V、額定工作電流至110A的電力系統中，供遠距離接通和分斷電路，并可與適當的熱過載繼電器或電子式保護裝置組合成電磁起動器，以保護操作（運行）可能發生過載的電路。 符合標準：GB 14048.4、IEC 60947-4-1。
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