詳細信息
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品名】:中間繼電器 小型繼電器
【型號】:MY2NJ MY4NJ
【可選電壓】:12V、24V、48V、110V、220V
【外形尺寸】:27.5×21×35.3mm
【輸出觸點】:MY2NJ,二組常開常閉轉換帶電源指示燈;MY4NJ,四組常開常閉轉換帶電源指示燈.
歐姆龍MY2NJ,電磁繼電器的工作原理。
電磁繼電器的工作原理
電磁式繼電器一般由鐵芯、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,從而產生電磁效應,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,從而達到了在電路中的導通、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」?!鲱~定值
項目 | 雙極 | 4極 | ||
阻性負載(cosφ=1) | 感性負載(cosφ=0.4、L/R=7ms) | 阻性負載(cosφ=1) | 感性負載(cosφ=0.4、L/R=7ms) | |
額定負載 | 5A,220VAC 5A,24VDC | 2A,220VAC 2A,24VDC | 3A,220VAC 3A,24VDC | 0.8A,220VAC 1.5A,24VDC |
負載電流 | 5A | 3A | ||
最大開關電壓 | 250VAC,125VDC | 250VAC,125VDC | ||
最大開關電流 | 5A | 3A | ||
最大開關容量 | 1,100VA 120W | 440VA 48W | 660VA 72W | 176VA 36W |
最小容許負載 | 1mA,5VDC | 1mA,1VDC | ||
接點材質 | 銀 | 銀+鍍金 |
注. P 水平:λ= 0.1×10-6/操作,參考值
接觸電阻 | 50mΩ以下 | |||||
動作時間 | 25ms以下 | |||||
復位時間 | 25ms以下 | |||||
操作頻率 | 機械 | 18,000次/小時 | ||||
電氣 | 18,000次/小時 | |||||
絕緣電阻 | 100MΩ以上(在500VDC) | |||||
絕緣強度 | 線圈與接點間 | 2,000VAC,50/60 Hz 1分鐘 | ||||
與同極接點間 | 1,000VAC,50/60 Hz 1分鐘 | |||||
振動 | 破壞 | 10~55Hz,1.0mm雙振幅 | ||||
故障 | 10~55Hz,1.0mm雙振幅 | |||||
沖擊 | 破壞 | 1,000m/s2(約100G) | ||||
故障 | 200m/s2(約20G) | |||||
周圍環(huán)境溫度 | -55℃~70℃(不結冰) | |||||
周圍環(huán)境濕度 | 35%~85%RH | |||||
壽命 | 機械(開關頻率18,000次/小時) | AC線圈 | 40,000,000次以上 | |||
DC線圈 | 80,000,000次以上 | |||||
電氣(開關頻率1,800次/小時) | 2極 | 400,000次以上(額定負載下) | ||||
4極 | 160,000次以上(額定負載下) | |||||
重量 | 約35g |
注. 上述值均為初始值。
以下為歐姆龍繼電器常備貨規(guī)格型號:
MY2NJ AC200/220 BY OMZ
MY2NJ AC220/240 BY OMZ
MY2NJ DC24 BY OMZ
MY4NJ AC200/220 BY OMZ
MY4NJ AC220/240 BY OMZ
MY4NJ DC24 BY OMZ
LY2NJ AC200/220 BY OMI
LY2NJ AC220/240 BY OMI
LY2NJ DC24 BY OMI
LY4NJ AC200/220 BY OMI
LY4NJ DC24 BY OMI
MY2J AC200/220 BY OMZ
MY2J AC220/240 BY OMZ
MY2J DC24 BY OMZ
MY4J AC200/220 BY OMZ
MY4J AC220/240 BY OMZ
MY4J DC24 BY OMZ
LY2J AC200/220 BY OMI
LY2J AC220/240 BY OMI
LY2J DC24 BY OMI
LY4J AC200/220 BY OMI
LY4J DC24 BY OMI
PTF08A-E BY OMI
PTF14A-E BY OMI
PYF08A-E BY OMZ
PYF14A-E BY OMZ
MY2NJ AC24 BY OMZ
MY2NJ AC50 BY OMZ
MY2NJ AC6 BY OMZ
MY2NJ DC100/110 BY OMZ
MY2NJ DC12 BY OMZ
MY2NJ DC24 BY OMZ
MY2NJ DC48 BY OMZ
MY2NJ DC6 BY OMZ
MY2NJ-CR AC100/110 BY OMZ
MY2NJ-CR AC110/120 BY OMZ
MY2NJ-CR AC200/220 BY OMZ
MY2NJ-CR AC220/240 BY OMZ
MY2NJ-D2 DC100/110 BY OMZ
MY2NJ-D2 DC12 BY OMZ
MY2NJ-D2 DC24 BY OMZ
MY2NJ-D2 DC48 BY OMZ
MY4NJ AC100/110 BY OMZ
MY4NJ AC110/120 BY OMZ
MY4NJ AC12 BY OMZ
MY4NJ AC200/220 BY OMZ
MY4NJ AC220/240 BY OMZ
MY4NJ AC24 BY OMZ
MY4NJ AC48 BY OMZ
MY4NJ AC6 BY OMZ
MY4NJ DC100/110 BY OMZ
MY4NJ DC12 BY OMZ
MY4NJ DC24 BY OMZ
MY4NJ DC48 BY OMZ
MY4NJ DC6 BY OMZ
MY4NJ-CR AC100/110 BY OMZ
MY4NJ-CR AC110/120 BY OMZ
MY4NJ-CR AC200/220 BY OMZ
MY4NJ-CR AC220/240 BY OMZ
MY4NJ-D2 DC100/110 BY OMZ
MY4NJ-D2 DC12 BY OMZ
MY4NJ-D2 DC24 BY OMZ
MY4NJ-D2 DC48 BY OMZ