接插件一般分为插头和插座两半。 　　插头一般指不固定的那一半。带阳性接触体的插头称为公插头；带阴性接触体的插头称为母插头。插座一般指固定（在面板或底盘上）的那一半。带阳性接触体的插座称为公插座；带阴性接触体的插座称为母插座。 　　当接插件两半无固定与不固定的区分时（如电缆连接器），则可按接触体形式加以区分，带阳性接触体的可称插头，带阴性接触体的可称插座。 　　当接插件两半无固定与不固定的区分，而所带接触体又无阳阴性之区分时，接插件两半就不分插头和插座。 　　四眼:三相的 三火一零三眼的：火线、地线、零线 两眼的：火线、地线左零(N)右火(L)地中间(PE)上海凯润峰机电供应(Hirschmann)赫斯曼全系列
Hirschmann 933710001 N6R BM FA S
 Hirschmann 933700001 N11R EF S
 Hirschmann 933699001 N11R BM FA S
 Hirschmann 933642106 GML 209 NJ GB1 LED 24 grau/grey
 Hirschmann 933642100 GML 209 NJ GB1 LED 24 schwarz/black
 Hirschmann 933607001 ASI PGK F 423
 Hirschmann 933583100 GDMC 0009 JPT schwarz/black
 Hirschmann 933572100 GMNL 209 NJ LED 24 YE schwarz/black
 Hirschmann 933571106 GML 209 NJ LED 24 YE grau/grey
 Hirschmann 933571100 GML 209 NJ LED 24 YE schwarz/black
 Hirschmann 933551200 EF12L5
 Hirschmann 933442406 ELST 400 RD/12 V Sn
 Hirschmann 933442306 ELST 400 RD/12 V Au
 Hirschmann 933419100 ASI FK M12 K
 Hirschmann 933415100 ASI FKK F V
 Hirschmann 933409100 ELWIST 4008 V
 Hirschmann 933408100 ELWIST 3008 V
 Hirschmann 933407100 ELST 4008 V
 Hirschmann 933406100 ELST 3008 V
 Hirschmann 933405001 E 2 LED PNP
 Hirschmann 933400100 GMNL 209 NJ GB1 LED 24 schwarz/black
 Hirschmann 933399106 GMNL 209 NJ GB1 grau/grey
 Hirschmann 933399100 GMNL 209 NJ GB1 schwarz/black
 Hirschmann 933398106 GML 209 NJ GB1 grau/grey
 Hirschmann 933398100 GML 209 NJ GB1 schwarz/black
 Hirschmann 933395200 EF12LW4
 Hirschmann 933394001 ELST 4408 RV KH
 Hirschmann 933393001 ELST 4408 RV KM
 Hirschmann 933392001 ELST 3308 RV KH
 Hirschmann 933391001 ELST 3308 RV KM
 Hirschmann 933389106 GML 209 NJ LED 24 HH grau/grey
 Hirschmann 933389100 GML 209 NJ LED 24 HH schwarz/black
 Hirschmann 933388106 GMNL 209 NJ LED 24 HH grau/grey
 Hirschmann 933388100 GMNL 209 NJ LED 24 HH schwarz/black
 Hirschmann 933383100 ELKE 3308 V FM 8 05
 Hirschmann 933382100 ELKE 4408 V FM 8 05
 Hirschmann 933381100 GSA-U 3075 SK
 Hirschmann 933379100 GSA-U 3000 N LO
 Hirschmann 933378100 GSA-U 2000 N LO
 Hirschmann 933377100 GSR-U 2000 LO
 Hirschmann 933376100 GSR-U 3000 LO 
 Hirschmann 933369100 ELWIKA 4008 V
 Hirschmann 933368100 ELWIKA 3008 V
 Hirschmann 933367100 ELKA 4008 V
 Hirschmann 933366100 ELKA 3008 V
 Hirschmann 933364100 GDMC 0011 JPT schwarz/black
 Hirschmann 933363212 ELST 412 LED YE Sn
 Hirschmann 933363112 ELST 412 LED YE Au
 Hirschmann 933353023 ELWIKA-KV 3308 PUR 025 10m