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德國力士樂Rexroth壓力繼電器一般由鐵芯、線圈、銜鐵、觸點簧片等組成的。只要在線圈兩端加上一定的電壓，線圈中就會流過一定的電流，從而產(chǎn)生電磁效應(yīng)，銜鐵就會在電磁力吸引的作用下克服返回彈簧的拉力吸向鐵芯，從而帶動銜鐵的動觸點與靜觸點（常開觸點）吸合。當(dāng)線圈斷電后，電磁的吸力也隨之消失，銜鐵就會在彈簧的反作用力返回原來的位置，使動觸點與原來的靜觸點（常閉觸點）吸合。這樣吸合、釋放，從而達(dá)到了在電路中的導(dǎo)通、切斷的目的。對于繼電器的"常開、常閉"觸點，可以這樣來區(qū)分：繼電器線圈未通電時處于斷開狀態(tài)的靜觸點，稱為"常開觸點"；處于接通狀態(tài)的靜觸點稱為"常閉觸點"。

Rexroth力士樂壓力繼電器，
Rexroth力士樂柱塞式壓力繼電器，
Rexroth力士樂壓力開關(guān)，
Rexroth力士樂柱塞式壓力開關(guān)。

壓力繼電器部分型號：
 
訂貨號           型號
R901102349 HED8OH-2X/50K14
R901107394 HED8OH-2X/50K14KW
R901109049 HED8OH-2X/50K14KWV
R901102360 HED8OH-2X/100K14
R901107128 HED8OH-2X/100K14A
R901107122 HED8OH-2X/100K14KW
R901109532 HED8OH-2X/100K14KWV
R901099808 HED8OH-2X/200K14
R901107369 HED8OH-2X/200K14KW
R901125810 HED8OH-2X/200K14KWV
R901101640 HED8OH-2X/350K14
R901107313 HED8OH-2X/350K14A
R901107095 HED8OH-2X/350K14KW
R901109069 HED8OH-2X/350K14KWV
R901101658 HED8OH-2X/630K14
R901336213 HED8OH-2X/630K14KW
R901107083 HED8OP-2X/50K14
R901108249 HED8OP-2X/50K14KW
R901106509 HED8OP-2X/100K14S
R901102747 HED8OP-2X/100K14
R901107370 HED8OP-2X/100K14KW
R901107790 HED8OP-2X/100K14AS
R901102721 HED8OP-2X/200K14
R901107093 HED8OP-2X/200K14S
R901108018 HED8OP-2X/200K14KW
R901109010 HED8OP-2X/200K14KWV
R901106453 HED8OP-2X/350K14
R901107330 HED8OP-2X/350K14V
R901107129 HED8OP-2X/350K14KW
R901122124 HED8OP-2X/350K14KWV
R901108147 HED8OP-2X/630K14
R901315271 HED8OP-2X/630K14KW
R901106449 HED8OP-2X/630K14S
R901101698 HED8OA-2X/50K14
R901102754 HED8OA-2X/50K14KW
R901110155 HED8OA-2X/50K14KWV
R901102706 HED8OA-2X/100K14
R901106262 HED8OA-2X/100K14AS
R901094159 HED8OA-2X/100K14KW
R901153040 HED8OA-2X/100K14KWV
R901102708 HED8OA-2X/200K14
R901106452 HED8OA-2X/200K14AS
R901106448 HED8OA-2X/200K14KW
R901108245 HED8OA-2X/200K14KWV
R901102710 HED8OA-2X/350K14
R901102716 HED8OA-2X/350K14KW
R901110450 HED8OA-2X/350K14KWV
供應(yīng)Rexroth力士樂壓力繼電器，
Rexroth力士樂柱塞式壓力繼電器