| Subject | English | Spanish |
| automat. | accelerating contactor | contactor acelerador |
| tech. | auxiliary contactor | contactor auxiliar |
| el.tract. | auxiliary power supply contactor | contactor de calefacción |
| tech. | auxiliary/external power contactor | contactor de potencia externa de la unidad de energía auxiliar |
| tech. | auxiliary/external power disconnect contactor | contactor de desconexión de potencia externa de la unidad de energía auxiliar |
| el.tract. | braking contactor | contactor de frenado |
| tech. | bus contactor | contactor de la barra colectora |
| tech. | bus tie contactor | contactor de enlace de la barra colectora |
| tech. | bus tie contactor | contactor de la barra de enlace |
| tech. | bus tie contactor | contactor de enlace de barra colectora |
| el.tract. | camshaft contactor | contactor de levas |
| mech.eng. | centrifugal contactor | contactor centrífugo |
| el. | closed contactor | contactor |
| commun. | contactor alarm | aviso de contactor |
| tech. | contactor auxiliary relay | relé contactor auxiliar |
| tech. | contactor auxiliary relay | relé auxiliar del contactor |
| industr., construct. | contactor banking stop | tope de contactor |
| industr., construct. | contactor cam | leva de contactor |
| chem. | contactor column | torre de contacto |
| automat. | contactor controller | combinador de contactores |
| industr., construct. | contactor earth-plug | terminal de masa del contactor |
| el. | contactor equipment | equipo de contactores |
| el.tract. | contactor group | batería de contactores |
| industr., construct. | contactor insulator | aislador de contactor |
| industr., construct. | contactor intermediate wheel | rueda de transmisión de contactor |
| industr., construct. | contactor knob | botón de contactor |
| coal. | contactor panel | cofre de comando o de protección |
| PSP | contactor relay | contactor auxiliar |
| industr., construct. | contactor roller | platillo de contactor |
| industr., construct. | contactor roller wheel | rueda del platillo de contactor |
| industr., construct. | contactor spring jumper | muelle flexible-muelle de contactor |
| industr., construct. | contactor stem | tija de contactor |
| industr., construct. | contactor support | soporte de contactor |
| tech. | contactor switch | interruptor de contactor |
| industr., construct. | contactor tag spring | muelle de terminal de contactor |
| industr., construct. | contactor wheel | rueda de contactor |
| industr., construct. | contactor wheel spring-clip | chaveta de rueda de contactor |
| el.tract. | earthing contactor | contactor de puesta a tierra |
| el.tract. | electro-magnetic contactor | contactor electromagnético |
| el.tract. | electro-pneumatic contactor | contactor electroneumático |
| tech. | external power disconnect contactor | contactor de desconexión de energía externa |
| el. | fast-exchange liquid-liquid centrifugal contactor | contactor centrífugo de intercambio rápido líquido-líquido |
| tech. | generator line contactor | contactor de línea del generador |
| earth.sc., el. | heating contactor | contactor de calefacción |
| nat.sc., el. | high-efficiency stage contactor | contactor de etapa de gran eficacia |
| transp., el. | individual contactor equipment | equipo de contactores individuales |
| PSP | instantaneous contactor relay | contactor auxiliar instantáneo |
| mater.sc. | internal contactor of the column | contactor interno de la columna |
| PSP | latched contactor | contactor de pestillo |
| PSP | latched contactor | contactor con retención |
| el. | line contactor | disyuntor de línea |
| el. | line contactor | contactor de línea |
| el. | magnetic contactor | contactor electromagnético |
| el. | main line contactor | contactor electromagnético de la línea principal |
| PSP | mechanical contactor | contactor mecánico |
| el. | open contactor | contactor |
| chem. | Podbielniak contactor | espiral contactera de Podbielniak |
| tech. | power contactor | contactor de potencia |
| tech. | power contactor | contactor de energía |
| transp. | resistor short-circuiting contactor | contactor de eliminación de resistencia |
| environ. | rotating biological contactor | biodisco |
| chem. | rotating-disk contactor | contactor de discos giratorios |
| el. | semi-conductor contactor | contactor con semiconductor |
| el. | separating contactor | contactor separador |
| mater.sc., chem. | stage contactor | contactor de etapa |
| chem. | stage-wise contactor | aparato de contacto por etapa |
| el.tract. | tapping contactor | contactor de tomas |
| el. | tapping contactor | contactor de toma |
| PSP | time-delay contactor relay | contactor auxiliar temporizado |
| el.tract. | train power supply contactor | contactor de calefacción |
| el.tract. | transition contactor | contactor de paso |
| commun. | vibrating contactor | descretador |
| commun. | vibrating contactor | contactor vibrador |
| earth.sc., el. | vibrating contactor | vibrador |
| meas.inst. | vibrating contactor | troceador |
| earth.sc., el. | vibrating contactor | relé modulador |
| tech., meas.inst. | vibrating contactor | interruptor de vibración |