德國(guó)力士樂Rexroth壓力繼電器
一般由鐵芯、線圈、銜組成的。只要在線圈兩端加上一定的電壓，線圈中就會(huì)流過一定的電流，從而產(chǎn)生電磁效應(yīng)，銜鐵就會(huì)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(dòng)銜鐵的動(dòng)觸點(diǎn)與靜觸點(diǎn)（常開觸點(diǎn)）吸合。當(dāng)線圈斷電后，電磁的吸力也隨之消失，銜鐵就會(huì)在彈簧的反作用力返回原來的位置，使動(dòng)觸點(diǎn)與原來的靜觸點(diǎn)（常閉觸點(diǎn)）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(duì)于繼電器的"常開、常閉"觸點(diǎn)，可以這樣來區(qū)分：繼電器線圈未通電時(shí)處于斷開狀態(tài)的靜觸點(diǎn)，稱為"常開觸點(diǎn)"；處于接通狀態(tài)的靜觸點(diǎn)稱為"常閉觸點(diǎn)"?！　?br />德國(guó)力士樂Rexroth壓力繼電器型號(hào)大全:
    R900544911 BAUSATZHED2
　　R900544475 PLATTEHED4-1X/-HED8-1X/FPM
　　R900543921 SCHALTERHED8-1X/
　　R900535210 HED5OP2-2X/630K14
　　R900524568 HED5OP2-2X/50K14
　　R900521868 HED3OA3X/400L24/12
　　R900514952 HED5OA1-2X/50K14
　　R900511812 HED1KA4X/350K
　　R900510560 HED1KA4X/100K
　　R900509843 HED1KA4X/100KL220
　　R900509452 HED5OA2-2X/50K14
　　R900502698 HED1KA4X/100KL24
　　R900499680 HED2OA2X/100KL24
　　R900481075 HED1OA4X/100/12
　　R900479859 HED2OA2X/25L110
　　R900478297 HED3OA3X/400L110
　　R900478094 HED2OA2X/25KL220
　　R900475715 HED1KA4X/350L24
　　R900475388 HED3OA3X/400KL24Q
　　R900473318 HED3OA3X/25L24
　　R900471570 HED1OA4X/350L220V
　　R900468190 HED1OA4X/350/12
　　R900466604 HED3OA3X/200KQSO1
　　R900466268 HED3OA3X/100KL24
　　R900466267 HED3OA3X/400KL24
　　R900465539 HED1OA4X/350KL24V
　　R900464646 HED2OA3X/400SO1
　　R900463858 HED1OA4X/350J
　　R900463490 HED1KA4X/100SO5
　　R900461658 HED2OA2X/63L220
　　R900461584 HED3OA3X/100KL24Q
　　R900459942 HED3OA3X/25L24Q
　　R900457574 HED2OA2X/63L24
　　R900457065 HED3OA3X/100L220
　　R900456950 HED2OA2X/200KL24
　　R900456417 HED5OP1-2X/210K14
　　R900455943 HED2OA2X/100/12
　　R900455372 HED2OA2X/400/12
　　R900454300 HED3OA3X/400KL220Q
　　R900452960 HED3OA3X/200KL24Q
　　R900452688 HED3OA3X/63Q
　　R900451807 HED3OA3X/100L24
　　R900451806 HED2OA2X/100L24
　　R900451231 HED2OA2X/400KL24
　　R900450802 HED3OA3X/200KQ
　　R900450583 HED2OA2X/100L220
　　R900449913 HED3OA3X/200KL24
　　R900449436 HED2OA2X/400L110
　　R900449422 HED1KA4X/350L24V
　　R900449159 HED2OA2X/25L24
　　R900449121 HED3OA3X/100KL220
　　R900448891 HED1KA4X/500K
　　R900448872 HED2OA2X/200L220
　　R900448807 HED3OA3X/400Q
　　R900448708 HED2OA2X/200L110
　　R900448568 HED3OA3X/25K
　　R900448441 HED2OA2X/400L220
　　R900448290 HED1KA4X/500L24
　　R900448100 HED3OA3X/400L24Q
　　R900448039 HED1OA4X/100L110
　　R900448018 HED2OA2X/400KL220
　　R900447961 HED2OA2X/200KL110
　　R900447863 HED3OA3X/200L110
　　R900447862 HED2OA2X/25K
　　R900447817 HED3OA3X/400L220
　　R900447300 HED2OA2X/100K
　　R900446891 HED3OA3X/400L24
　　R900446818 HED2OA2X/25KL24
　　R900445818 HED2OA2X/25L220
　　R900445800 HED3OA3X/200L220
　　R900445230 HED2OA2X/63K
　　R900444716 HED2OA2X/200KL220
　　R900444274 HED3OA3X/200Q
　　R900444255 HED2OA2X/100
　　R900444254 HED2OA2X/63
　　R900444156 HED3OA3X/25
　　R900444123 HED3OA3X/100K
　　R900444122 HED3OA3X/200K
　　R900444121 HED2OA2X/25
　　R900444106 HED3OA3X/400KL220
　　R900444041 HED2OA2X/200K
　　R900444009 HED3OA3X/200L24
　　R900443741 HED2OA2X/400L24