此图为动作接线演示图。
此图为动作演示图。
【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 DC24 BY OMZ
MY2NJ DC48 BY OMZ
MY2NJ DC6 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 DC24 BY OMZ
MY4NJ-D2 DC24 BY OMZ