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广州智尚机电设备有限公司
联系人：范小姐
电话：020-28257140
手机：13539827793
传真:020-28257171
QQ:2368952762
品名】：中间继电器 小型继电器
【型号】：MY2NJ MY4NJ
【可选电压】：12V、24V、48V、110V、220V
【外形尺寸】：27.5×21×35.3mm
【输出触点】：MY2NJ，二组常开常闭转换带电源指示灯；MY4NJ，四组常开常闭转换带电源指示灯.
欧姆龙MY2NJ，电磁继电器的工作原理。
电磁继电器的工作原理
电磁式继电器一般由铁芯、线圈、衔铁、触点簧片等组成的。只要在线圈两端加上一定的电压，线圈中就会流过一定的电流，从而产生电磁效应，衔铁就会在电磁力吸引的作用下克服返回弹簧的拉力吸向铁芯，从而带动衔铁的动触点与静触点（常开触点）吸合。当线圈断电后，电磁的吸力也随之消失，衔铁就会在弹簧的反作用力返回原来的位置，使动触点与原来的静触点（常闭触点）吸合。这样吸合、释放，从而达到了在电路中的导通、切断的目的。对于继电器的「常开、常闭」触点，可以这样来区分：继电器线圈未通电时处于断开状态的静触点，称为「常开触点」；处于接通状态的静触点称为「常闭触点」。■额定值
项目 双极 4极
阻性负载（cosφ=1） 感性负载（cosφ=0.4、L/R=7ms） 阻性负载（cosφ=1） 感性负载（cosφ=0.4、L/R=7ms）
额定负载 5A，220VAC 5A，24VDC 2A，220VAC 2A，24VDC 3A，220VAC 3A，24VDC 0.8A，220VAC 1.5A，24VDC
负载电流 5A 3A
最大开关电压 250VAC,125VDC 250VAC,125VDC
最大开关电流 5A 3A
最大开关容量 1,100VA 120W 440VA 48W 660VA 72W 176VA 36W
最小容许负载 1mA,5VDC 1mA,1VDC
接点材质 银 银＋镀金
注. P 水平：λ= 0.1×10-6/操作，参考值
接触电阻 50mΩ以下
动作时间 25ms以下
复位时间 25ms以下
操作频率 机械 18,000次/小时
电气 18,000次/小时
绝缘电阻 100MΩ以上（在500VDC）
绝缘强度 线圈与接点间 2,000VAC，50/60 Hz 1分钟
与同极接点间 1,000VAC，50/60 Hz 1分钟
振动 破坏 10～55Hz，1.0mm双振幅
故障 10～55Hz，1.0mm双振幅
冲击 破坏 1,000m/s2（约100G）
故障 200m/s2（约20G）
周围环境温度 -55℃～70℃（不结冰）
周围环境湿度 35％～85％RH
寿命 机械（开关频率18,000次/小时） AC线圈 40,000,000次以上
DC线圈 80,000,000次以上
电气（开关频率1,800次/小时） 2极 400,000次以上（额定负载下）
4极 160,000次以上（额定负载下）
重量 约35g
注. 上述值均为初始值。
以下为欧姆龙继电器常备货规格型号：
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
