● 电压波动保护功能，电源逆连接保护功能(DC) ,过电流保护功能 
● 寿命长,可靠性高 
● 有红灯,可辨别动作是否发生 
● 经济性，易操作 
● 用途广泛，可代替 Micro 开关，Limit 开关 
● 电源电压直流10～30V 交流90～250V范围内，可直接驱动200mA以下负载

主要型号:
直流(DC)三线式
PR系列标准型:
PR08-1.5DN    PR08-2DN   PR08-1.5DP   PR08-2DP 
PR08-1.5DN2   PR08-2DN2  PR08-1.5DP2  PR08-2DP2 
PR12-2DN     PR12-2DP    PR12-4DN    PR12-4DP
PR12-2DN2    PR12-2DP2   PR12-4DN2   PR12-4DP2
PR18-5DN     PR18-5DP    PR18-8DN    PR18-8DP
PR18-5DN2    PR18-5DP2   PR18-8DN2   PR18-8DP2
PR30-10DN    PR30-10DP   PR30-15DN   PR30-15DP
PR30-10DN2   PR30-10DP 2  PR30-15DN2  PR30-15DP2

PRS系列短螺纹安装型:
PRS12-2DN     PRS12-2DP    PRS12-4DN    PRS12-4DP
PRS12-2DN2    PRS12-2DP2   PRS12-4DN2   PRS12-4DP2

PRL系列安装螺纹加长型:
PRL08-1.5DN      PRL08-2DN       PRL08-1.5DP        PRL08-2DP 
PRL08-1.5DN2     PRL08-2DN2      PRL08-1.5DP2       PRL08-2DP2
PRL12-2DN        PRL12-2DP       PRL12-4DN         PRL12-4DP
PRL12-2DN2       PRL12-2DP2      PRL12-4DN2        PRL12-4DP2
PRL18-5DN        PRL18-5DP       PRL18-8DN         PRL18-8DP
PRL18-5DN2       PRL18-5DP2      PRL18-8DN2        PRL18-8DP2
PRL30-10DN       PRL30-10DP      PRL30-15DN        PRL30-15DP
PRL30-10DN2      PRL30-10DP2     PRL30-15DN2       PRL30-15DP2

直流(DC)二线式
PRT系列:
PRT08-1.5DO      PRT08-2DO     PRT08-1.5DC     PRT08-2DC 
PRT12-2DO       P PRT12-4DO   PRT12-2DC       PRT12-4DC
PRT18-5DO       PRT18-8DO     PRT18-5DC       PRT18-8DC
PRT30-10DO      PRT30-15DO    PRT30-10DC      PRT30-15DC

交流(AC)二线式:
PR系列标准型: 
PR12-2AO      PR12-4AO     PR12-2AC      PR12-4AC
PR18-5AO      PR18-8AO     PR18-5AC      PR18-8AC
PR30-10AO     PR30-15AO    PR30-10AC     PR30-15AC

PRL系列安装螺纹加长型:
PRL18-5AO     PRL18-8AO    PRL18-5AC    PRL18-8AC
PRL30-10AO    PRL30-15AO   PRL30-10AC   PRL30-15A