| Subject | Spanish | English |
| automat. | aparato medidor de relé | relay tester |
| meas.inst. | aparato registrador de relé | relay-type recorder |
| meas.inst. | aparato registrador de relé | relay-type graphic instrument |
| el. | armadura de relé | relay armature |
| el. | atracción del relé | relay excitation |
| el. | autoconmutador de relés de láminas | reed relay system |
| el. | autoconmutador de relés de láminas | reed relay exchange |
| el. | autoconmutador de relés de láminas | reed electronic exchange |
| PSP | avería temporal de relé para relés elementales | intermittent relay fault for elementary relays |
| el. | bastidor de relés | relay rack |
| el. | bastidor de relés | relay bay |
| commun., el. | bobina de relé | coil relay |
| tech. | bobina de relé del control de retracción del tren de aterrizaje | gear retract control relay coil landing gear |
| tech. | bobina de relé del indicador del seguro de extensión del tren de aterrizaje | gear downlock indicator relay coil |
| tech. | bobina de relé del interruptor de extensión del montante de proa | nose strut hiking switch relay coil |
| tech. | bobina del relé secuencial de las puertas | doors sequence relay coil |
| IT, el. | cadena de relés | relay chain |
| tech. | caja de relés | relay box |
| el. | caseta de relés | substation relay kiosk |
| el. | caseta de relés | relay cubicle |
| el. | caseta de relés | substation relay building |
| el. | caída del relé | relay drop |
| el. | chapa de relé | relay shutter |
| tech. | circuito de retención del relé de control | control relay holding circuit |
| transp., el. | circuito de vía con relé polarizado | track circuit with polarized relay |
| tech. | conjunto amplificador-relé | amplifier-relay assembly |
| tech. | conjunto eléctrico de relés | electrical relay assembly |
| automat. | conjuntor de relés de cortes sucesivos rápidos | inching controller |
| tech. | conjuntos de relés amplificadores | amplifier-relay assembly |
| telecom. | conmutador de relés | relay switch |
| IT, el. | contacto de relé de láminas | reed contact |
| earth.sc., el. | contacto del relé | relay contact |
| tech. | contacto del relé de regulación del campo inductor | field control relay contact |
| tech. | contactos de relé de subvoltaje mínimo de corriente alterna | alternating current undervoltage relay contacts |
| tech. | contactos de relé de subvoltaje mínimo de corriente alterna | AC undervoltage relay contacts |
| tech. | contactos de relés | relay contacts |
| el. | contador-relé | meter relay |
| el. | cuadro de relés | relay rack |
| el. | cuadro de relés | relay frame |
| el. | cuadro de relés | relay box |
| el. | cuadro de relés de protección del generador | generator protective relay panel |
| commun., el. | devanado de relé | winding relay |
| tech. | disparador de relé de regulación del campo eléctrico de corriente alterna | alternating current field control relay trip |
| tech. | disparador de relé de regulación del campo eléctrico de corriente alterna | AC field control relay trip |
| radio | estación relé | relay station |
| el. | excitación del relé | relay excitation |
| tech. | grapa de conductor de relé disyuntor | frame cut-out relay lead clip |
| el. | grupo de relés | relay set |
| tech. | interruptor de relé avisador | alarm switch |
| commun., el. | juego de relés | relay-set |
| IT | juego de relés de buscador de líneas | line finder relay set |
| IT, el. | juego de relés de posición de operadora | position relay set |
| IT | mando directo interno por relés | direct internal relay drive |
| automat. | mando por relé | relay control |
| tech. | módulo de control de relé | relay control module |
| IT, el. | placa de relés | relay strip |
| el. | placa de relés electrónicos de alarmas y estados | alarm and status electronics relay board |
| el. | placa de relés electrónicos de alarmas y estados | alarm and status electronics and relay board |
| IT, el. | probador automático de relés triagoz | triagoz automatic relay tester |
| transp. | puesto de relés de mando informatizado | computer-controlled all-relay interlocking |
| commun., el. | puesto "todo relés" | all-relay signal box with visual illuminated diagram |
| commun., el. | puesto "todo relés" | all-relay signal box with visual control panel |
| commun., el. | puesto "todo relés" | all-relay interlocking box |
| railw., sec.sys. | puesto todo relés | all relay interlocking |
| transp. | puesto "todo relés" con cableado geográfico simplificado | all-relay interlocking with geographical circuitry |
| tech. | radioestación relé | radio relay |
| el. | región efectiva de un relé de medida | effective range of a measuring relay |
| automat. | regulación accionada por relé | relay-operated control |
| automat. | regulación de velocidad por relés | relay-actuated speed control |
| automat. | regulación del número de revoluciones por relés | relay-actuated speed control |
| automat. | regulador accionado por relé | relay-operated controller |
| el. | relé a distancia | distance relay |
| el. | relé a transistores | transistor relay |
| earth.sc., el. | relé acoplado magnéticamente | magnetic coilless relay |
| earth.sc., el. | relé acoplado magnéticamente | magnetically coupled relay |
| el., meas.inst. | relé adaptativo | adaptive relay |
| transp. | relé amplificador | repeater relay |
| earth.sc. | relé amplificador | amplifying relay |
| el., meas.inst. | relé analógico | analog relay |
| mech.eng., construct. | relé autorretentor | self hold relay |
| el. | relé auxiliar | slave relay |
| el. | relé auxiliar | auxiliary relay |
| tech. | relé auxiliar de toma de contacto | auxiliary touchdown relay |
| tech. | relé auxiliar de transferencia | auxiliary transfer relay |
| tech. | relé auxiliar del contactor | contactor auxiliary relay |
| el. | relé Buchholz | Buchholz relay |
| earth.sc., el. | relé coaxial tipo "latching" | coax relay "latching" type |
| gen. | relé con bobina móvil | galvanometric relay |
| gen. | relé con bobina móvil | moving-coil relay |
| tech. | relé con enclavamiento | latching relay |
| gen. | relé con enclavamiento | latching type relay |
| el. | relé conmutador | centre zero relay |
| el. | relé conmutador | center zero relay |
| tech. | relé conmutador | transfer relay |
| tech. | relé contactor auxiliar | contactor auxiliary relay |
| meas.inst. | relé contador | counting relay |
| tech. | relé cronométrico | time-controlled relay |
| tech. | relé de accionamiento intermitente | flashing relay |
| el. | relé de acción diferida | time-lag release |
| el. | relé de acción diferida | time-lag relay |
| el. | relé de acción instantánea | instantaneous release |
| el. | relé de acción instantánea | instantaneous relay |
| transp., el. | relé de aceleración | accelerating relay |
| transp., el. | relé de aceleración | acceleration relay |
| el.tract. | relé de aceleración | notching relay |
| transp. | relé de aflojamiento | release relay |
| gen. | relé de agua de circuito abierto | open circuit water relay |
| gen. | relé de agua de circuito cerrado | closed circuit water relay |
| tech. | relé de alcance de velocidad | on speed relay |
| el. | relé de antibombeo | anti-hunting relay |
| transp., el. | relé de antipatinaje | anti-skid relay |
| el. | relé de armadura basculante | unbiased polarised relay |
| el. | relé de arranque | starting relay |
| tech. | relé de arranque y parada | stop start relay |
| el. | relé de atracción temporizada | time delay relay |
| tech. | relé de avance paso a paso | stepper relay |
| automat. | relé de baja carga | underload relay |
| earth.sc., el. | relé de baja frecuencia | under-frequency relay |
| tech. | relé de bajo voltaje | undervoltage relay |
| el. | relé de bloqueo | restraining relay |
| el. | relé de bloqueo | blocking relay |
| tech. | relé de bloqueo | lockout relay |
| tech. | relé de bloqueo | lock-relay |
| earth.sc., el. | relé de bombilla | reed relay |
| tech. | relé de calor intenso | high heat relay |
| earth.sc., el. | relé de campana | load shedder relay |
| automat. | relé de carga mínima | underload relay |
| el. | relé de caída temporizada | slow release relay |
| tech. | relé de chapaleta | clapper relay |
| automat. | relé de chorro de líquido | jet relay |
| tech. | relé de cierre | lockout relay |
| tech. | relé de cierre | lock-relay |
| earth.sc., el. | relé de cierre lento de válvula | valve slow-closing relay |
| el. | relé de clavijas | plug-in relay |
| el., meas.inst. | relé de comparación de fase | phase comparison relay |
| el. | relé de comprobación de sincronismo | synchronizing relay |
| el. | relé de comprobación de sincronismo | synchronising relay |
| transp., el. | relé de contacto | contact relay |
| tech. | aterrizaje relé de contacto | touchdown relay |
| el. | relé de contacto sellado | reed relay |
| mech.eng. | relé de control | control relay |
| IT, el. | relé de control | operating relay |
| tech. | relé de control de destello de luz | light flashing control relay |
| tech. | relé de control de energía de las luces de navegación | navigation lights power control relay |
| tech. | relé de control de la válvula de alimentación cruzada | crossfeed valve control relay |
| tech. | relé de control de potencia | power control relay |
| tech. | relé de control del detector de rotación de la rueda | wheel rotation detector control relay |
| commun. | relé de corte | cut-off relay |
| commun. | relé de corte | break relay |
| tech. | relé de cortocircuito | short circuit relay |
| el., meas.inst. | relé de derivada de | rate of change of… relay |
| tech. | relé de desacoplamiento | unlock relay |
| tech. | relé de desacoplamiento | disengage relay |
| earth.sc., el. | relé de desahogo | load shedder relay |
| el. | relé de desenganche | release relay |
| tech. | relé de desenganche | unlock relay |
| tech. | relé de desenganche | disengage relay |
| transp., el. | relé de desequilibrio | out of balance relay |
| el., meas.inst. | relé de desequilibrio | unbalance relay |
| commun. | relé de destellos | flasher relay |
| commun. | relé de destellos | flasher |
| tech. | relé de detención en tierra | ground stop relay |
| coal. | relé de detonación | detonating relay |
| el. | relé de disparo | tripping relay |
| el. | relé de disparo | trip relay |
| el. | relé de distancia | distance relay |
| IT | relé de doble carrera | double throw relay |
| railw., sec.sys. | relé de dos arrollamientos | two-element relay |
| el. | relé de dos elementos | two-element relay |
| commun., el. | relé de dos tiempos | two-step relay |
| earth.sc., el. | relé de enchufes | plug-in type relay |
| electric. | relé de enclavamiento | interlock relay |
| tech. | relé de enclavamiento | latching type relay |
| commun., el. | relé de estado del emplazamiento | site relay |
| el. | relé de estado sólido | solid state relay |
| tech. | relé de exploración | seeking relay |
| el., meas.inst. | relé de falta a tierra | earth fault relay |
| el., meas.inst. | relé de falta de fase | phase fault relay |
| el. | relé de falta de tensión | loss of voltage relay |
| electric. | relé de fijación | interlock relay |
| tech. | relé de fijación de rumbo | heading set relay |
| el. | relé de frecuencia | frequency relay |
| el. | relé de fuerza centrífuga | centrifugal relay |
| mech.eng., construct. | relé de funcionamiento secuencial | relay race |
| tech. | relé de golpeteo | clapper relay |
| el. | relé de guarda | holding relay |
| el. | relé de guarda | guard relay |
| el. | relé de hipotensión | under-voltage relay |
| el. | relé de impedancia | impedance relay |
| el. | relé de impedancia | distance relay |
| mech.eng., el. | relé de impulso | remote control switch |
| el. | relé de impulsos | step relay |
| IT, el. | relé de impulsos | pulse relay |
| el. | relé de impulsos | impulse relay |
| el. | relé de impulsos numéricos | pulsing relay |
| el. | relé de impulsos numéricos | impulsing acceptance relay |
| PSP | relé de impulsos retardado | pulse delayed relay |
| PSP | relé de impulsos retardado con señal de control | pulse delayed relay with control signal |
| mech.eng., construct. | relé de impulsos sucesivos | notching relay |
| el. | relé de inducción | induction relay |
| tech. | relé de iniciación | start relay |
| earth.sc., el. | relé de iniciación de encendido | primary firing relay |
| el. | relé de intensidad | current relay |
| electric. | relé de interconexión | interlock relay |
| tech. | relé de interrupción en tierra | ground stop relay |
| PSP | relé de intervalo | interval relay |
| PSP | relé de intervalo con señal de control | single shot relay |
| PSP | relé de intervalo con señal de control | interval relay with control signal |
| tech. | relé de inversión | reversing relay |
| el. | relé de inversión de potencia | reserve power relay |
| helic. | relé de liberación de carga | cargo release relay |
| el. | relé de láminas | reed relay |
| tech. | relé de láminas | reed-type relay (flexibles) |
| el. | relé de láminas de contactos secos | dry reed relay |
| commun., el. | relé de línea | line relay |
| IT, el. | relé de mando | operating relay |
| automat. | relé de mando | control relay |
| transp., el. | relé de mando de aguja | points-operating relay train |
| automat. | relé de mando de la señal | signal control relay |
| tech. | relé de mando de la turbina | turbine control relay |
| tech. | relé de mando rápido | booster relay |
| IT, industr., construct. | relé de marcha continua | continuous motion relay |
| commun. | relé de marco | frame relay |
| el. | relé de medida | measuring relay |
| meas.inst. | relé de medida | intranome relay |
| el., meas.inst. | relé de medida de tiempo especificado | specified-time measuring relay |
| IT, el. | relé de mercurio | mercury-wetted relay |
| el. | relé de mercurio líquido | mercury wetted relay |
| el.tract. | relé de máxima intensidad | overcurrent relay |
| el. | relé de máxima intensidad | maximum current relay |
| el.tract. | relé de máxima tensión | overvoltage relay |
| el. | relé de máxima tensión | maximum voltage relay |
| transp. | relé de mínima intensidad | minimum-power relay |
| transp. | relé de mínima intensidad | minimum-current relay |
| el. | relé de mínima tensión | minimum voltage relay |
| automat. | relé de mínimo de carga | underload relay |
| transp. | relé de no seguridad | non-safety relay |
| transp. | relé de no seguridad | industrial relay |
| gen. | relé de parada | switch-off relay |
| tech. | relé de polarización reactiva | reactive biasing relay |
| el., meas.inst. | relé de porcentaje | percentage relay |
| el. | relé de potencia | power relay |
| tech. | relé de potencia para bajar los flaps | flap power down relay |
| IT, el. | relé de progresión | stepping relay |
| tech. | relé de progresión con retorno a la posición inicial antes de cada ciclo de operaciones | homing relay |
| tech. | relé de propresión | stepper relay |
| el. | relé de protección | protection relay |
| el. | relé de protección | protective relay |
| IT, el. | relé de protección | fuse relay |
| el. | relé de protección | protection device |
| el. | relé de protección | back up protection relay |
| el. | relé de protección contra sobretensiones | surge arrester |
| el. | relé de protección contra sobretensiones | overvoltage protective device |
| coal. | relé de protección de continuidad de tierras | operating relay for protection against failure of earth continuity |
| earth.sc., el. | relé de protección diferencial | protection relay |
| tech. | relé de prueba | test relay |
| transp. | relé de puente | bridge relay |
| el.tract. | relé de puesta a tierra | earth fault relay |
| el. | relé de puesta a tierra | earthing relay |
| el. | relé de pérdida de sincronismo | loss of synchronism relay |
| el., meas.inst. | relé de reactancia | reactance relay |
| earth.sc., el. | relé de reajuste rápido | fast-slaving relay |
| earth.sc., el. | relé de refrigeración | cold demand relay |
| el., meas.inst. | relé de regulación | regulating relay |
| tech. | relé de regulación del campo inductor | field control relay |
| commun., el. | relé de remanencia | remanent relay |
| transp. | relé de repetición | repeater relay |
| tech. | relé de reposición eléctrico | electrical reset relay |
| earth.sc., el. | relé de retardo | timing relay |
| earth.sc., el. | relé de retardo | spin clock |
| tech. | relé de retardo de control de contramarcha de la bomba reforzadora | boost pump reverse control time-delay relay |
| earth.sc., el. | relé de retardo de tiempo | time-delay relay |
| tech. | relé de retención | holding relay |
| tech. | relé de retención de acorte automático | auto-dehike holding relay |
| tech. | relé de retención de aviso del combustible externo | external fuel warning holding relay |
| earth.sc., el. | relé de retén | reducing valve relay |
| earth.sc., el. | relé de ruptura | de-energizing relay |
| el. | relé de secuencia | sequence relay |
| el. | relé de secuencia | interdigital-pause relay |
| el. | relé de secuencia | interdigital relay |
| tech. | relé de secuencia de fases | phase sequence relay |
| el. | relé de secuencia inversa | inverse characteristic relay |
| el. | relé de secuencia negativa | inverse characteristic relay |
| transp. | relé de seguridad | vital relay |
| railw., sec.sys. | relé de seguridad | safety relay |
| earth.sc., el. | relé de seguridad al despegue | take-off safety relay |
| tech. | relé de seguridad de conexión a tierra | safety ground relay |
| earth.sc., el. | relé de servicio | service relay |
| transp. | relé de servosistema | slave relay |
| el. | relé de señalización | indicating relay |
| earth.sc., el. | relé de señalización de error de trim | trim error warning relay |
| el. | relé de señalización de falta a tierra | ground indication relay |
| el. | relé de señalización de falta a tierra | earth indication relay |
| transp. | relé de shuntado | shunt relay |
| el., meas.inst. | relé de sincronización | synchronizing relay |
| el., meas.inst. | relé de sobre | over… relay |
| tech. | relé de sobrecalentamiento | high heat relay |
| el. | relé de sobrecarga | overload relay |
| el. | relé de sobrecarga | overcurrent relay |
| meas.inst. | relé de sobrecarga | current control device |
| tech. | relé de sobretensión | overvoltage relay |
| el. | relé de sobretensión residual | residual voltage relay |
| tech. | relé de sobrevoltajede corriente alterna | alternating current overvoltage relay |
| tech. | relé de sobrevoltajede corriente alterna | AC overvoltage relay |
| el. | relé de solenoide | electro-magnetic relay |
| tech. | relé de solenoide | solenoid relay |
| el., meas.inst. | relé de sub | under… relay |
| el., meas.inst. | relé de sub y sobre | under and over… relay |
| tech. | relé de subfrecuencia | underfrequency relay |
| earth.sc., el. | relé de subtensión | under-voltage relay |
| earth.sc., el. | relé de subvoltaje | under-voltage relay |
| tech. | relé de subvoltaje | undervoltage relay |
| el. | relé de tensión | voltage relay |
| earth.sc., el. | relé de tensión de inversor bipolar | double-pole voltage relay |
| el. | relé de tensión homopolar | zero sequence voltage relay |
| el.tract. | relé de tensión nula | no-volt relay |
| el. | relé de tiempo especificado | specified-time relay |
| el. | relé de tiempo fijo | independent time relay |
| el. | relé de tiempo inverso | inverse time relay |
| PSP | relé de tiempo no especificado desaconsejado | elementary relay |
| PSP | relé de tiempo no especificado desaconsejado | non-specified-time relay |
| el. | relé de tiempo no especificado | non-specified time relay |
| el. | relé de todo o nada | all-or-nothing relay |
| tech. | relé de toma de contacto | touchdown relay |
| transp. | relé de transferencia | transfer relay |
| tech. | relé de transferencia | power transfer relay |
| tech. | relé de transferencia de la barra colectora de control de los flaps | flap control bus transfer relay |
| tech. | relé de transición | transition relay |
| el. | relé de tres sistemas de medida | three element relay |
| el. | relé de tres sistemas de medida | 3 element relay |
| el. | relé de variación brusca de potencia | sudden power change relay |
| el. | relé de variación brusca de tensión | sudden voltage change relay |
| transp. | relé de velocidad | speed relay |
| PSP | relé de vigilancia | watchdog relay |
| PSP | relé de vigilancia | retriggerable interval relay with control signal on |
| PSP | relé de vigilancia con retirada de la señal de control | fleeting off delay relay |
| PSP | relé de vigilancia con retirada de la señal de control | retriggerable interval relay with control signal off |
| tech. | relé de voltaje mínimo | undervoltage relay |
| transp., el. | relé de vía | track relay |
| PSP | relé defectuoso | defective relay |
| tech. | relé del arrancador | starter relay |
| tech. | relé del interruptor de torsión del tren de aterrizaje | landing gear torque switch relay |
| tech. | relé del manipulador | key relay |
| tech. | relé desactivador de bocina | horn silent relay |
| tech. | relé desconectador automático | load-levelling relay |
| tech. | relé desconectador automático | load-leveling relay |
| tech. | relé desconector | cutout relay |
| tech. | relé detector | sensing relay |
| nautic. | relé detector | sensitive relay |
| earth.sc., el. | relé detector de escarcha | ice detector relay |
| tech. | relé detector de rotación de la rueda | wheel rotation detector control relay |
| commun., el. | relé diferencial | electromagnetic differential relay |
| commun., el. | relé diferencial | differential relay |
| commun., el. | relé diferencial | differential protection |
| commun., el. | relé diferencial | balancing relay |
| el., meas.inst. | relé digital | digital relay |
| el. | relé direccional | directional relay |
| earth.sc., el. | relé direccional | reverse current relay |
| el. | relé direccional de sobreintensidad | directional-overcurrent relay |
| el. | relé direccional de sobreintensidad | directional overcurrent relay |
| el. | relé direccional de tierra | directional-ground relay |
| el. | relé direccional de tierra | directional earth relay |
| IT, el. | relé doble | dual relay |
| el. | relé electrodinámico | electrodynamic relay |
| el. | relé electromagnético | electro-magnetic relay |
| el. | relé electromagnético | electromagnetic relay |
| earth.sc., el. | relé electromagnético | solenoid relay |
| el. | relé electromecánico | electromechanical relay |
| el. | relé electrostático | electrostatic relay |
| el. | relé electrotérmico | electro-thermal relay |
| el. | relé electrotérmico | thermal relay |
| el. | relé electrotérmico | bimetallic relay |
| el. | relé electrotérmico | bimetal relay |
| el. | relé electrónico | electronic relay |
| el. | relé eléctrico | relay |
| el. | relé eléctrico | electrical relay |
| el., meas.inst. | relé eléctrico térmico | thermal electrical relay |
| commun., el. | relé enganchador | latching relay |
| PSP | relé estático | solid-state relay |
| el. | relé estático | static relay |
| el. | relé estático con contacto de salida | static relay with output contact |
| el. | relé estático sin contacto de salida | static relay without output contact |
| tech. | relé fijador | locking relay |
| el. | relé fotoeléctrico | photo-electric relay |
| chem. | relé fotoeléctrico | light-relay |
| tech. | relé relevador fotoeléctrico | light relay or photo-tube relay |
| el. | relé galvanométrico | moving coil relay |
| gen. | relé galvanométrico | moving-coil relay |
| gen. | relé galvanométrico | galvanometric relay |
| el. | relé instantáneo | instantaneous release |
| el. | relé instantáneo | instantaneous relay |
| el., meas.inst. | relé integrado de control | integrated control relay |
| el., meas.inst. | relé integrado de protección | integrated protection relay |
| el., meas.inst. | relé integrado de protección y de control | integrated protection and control relay |
| el. | relé intermedio | intermediate relay |
| tech. | relé interruptor | transfer relay |
| tech. | relé interruptor | cutout relay |
| mech.eng., construct. | relé lento | slugged relay |
| earth.sc., el. | relé limitador | interlock relay |
| earth.sc., el. | relé limitador de carrera | end-of-travel relay |
| IT, industr., construct. | relé mando servomotor | servo motor driving relay |
| el. | relé mecánico | mechanical relay |
| el., meas.inst. | relé mho | mho relay |
| el., meas.inst. | relé mho desplazado | offset mho relay |
| earth.sc., el. | relé modulador | vibrating contactor |
| earth.sc., el. | relé modulador | vibrator |
| earth.sc., el. | relé modulador | chopper |
| IT, el. | relé multidevanado | multi-coil relay |
| comp., MS | relé multimedia | media relay (A server, in the perimeter network, that has two separate network interfaces or edges (one for accepting connections from internal clients and another for accepting connections from external clients) and that is used to enable applications to pass audio and video data across NATs and firewalls) |
| transp. | relé neumático | pneumatic relay |
| automat. | relé neumático de posicionado | pneumatic positioning relay |
| commun., el. | relé no polarizado | non-polarized relay |
| commun., el. | relé no polarizado | non-polarised relay |
| transp. | relé NS | non-safety relay |
| transp. | relé NS | industrial relay |
| el., meas.inst. | relé numérico | numerical relay |
| transp., el. | relé palpador | system-sensitive device |
| IT, el. | relé paso a paso | stepping relay |
| meas.inst. | relé paso a paso | stepping switch |
| automat. | relé piloto | pilot relay |
| IT, el. | relé piloto y tierra | pilot relay and earth |
| el., meas.inst. | relé polarizado | biased relay |
| el. | relé polarizado | polarized relay |
| el. | relé polarizado | polarised relay |
| el., meas.inst. | relé primario | primary relay |
| IT, industr., construct. | relé propulsor sublevamiento y freno | break and lifting driving relay |
| commun., IT | relé radioeléctrico pasivo | passive radio relay |
| automat. | relé regulador de tensión | voltage regulating relay |
| railw., sec.sys. | relé repetidor | repeater relay |
| el. | relé retardado | timed relay |
| tech. | relé retardador | time-delay relay |
| el. | relé ruptor | breaker relay |
| commun., el. | relé rápido | high-speed relay |
| commun. | relé satélite | satellite relay |
| el., meas.inst. | relé secundario | secondary relay |
| el. | relé selectivo | selective relay |
| tech. | relé separador de partículas de aire | air particle separation relay |
| commun. | relé silenciador | muting relay |
| earth.sc., el. | relé sin bobina magnética | magnetically coupled relay |
| earth.sc., el. | relé sin bobina magnética | magnetic coilless relay |
| tech. | relé sincronizado de la barra colectora | synchronized bus relay |
| tech. | relé sincronizador de la barra colectora | synchronizing bus relay |
| el., meas.inst. | relé sobre shunt | shunt relay |
| tech. | relé subordinado | slave relay |
| el. | relé supresor de computo | non-measuring relay |
| el. | relé supresor de medición | non-measuring relay |
| transp. | relé taquimétrico | speed relay |
| commun., el. | relé telegráfico | telegraph relay |
| el. | relé temporizado | sucker |
| el. | relé temporizado | time lag relay |
| el. | relé temporizado | time limit relay |
| el. | relé temporizado | time delay relay |
| tech. | relé temporizado | time-delay relay |
| PSP | relé temporizado | time relay |
| PSP | relé temporizado | specified-time relay |
| el. | relé temporizado | marginal relay |
| tech. | relé temporizado | time-controlled relay |
| PSP | relé temporizado al corte | true off-delay relay |
| PSP | relé temporizado al corte | power off-delay relay |
| PSP | relé temporizado al corte con señal de control | off-delay relay |
| PSP | relé temporizado al corte con señal de control | off-delay relay with control signal |
| PSP | relé temporizado con suma de tiempos | summation time relay |
| el. | relé temporizado de sobreintensidad | overcurrent time-lag relay |
| PSP | relé temporizado estrella-triángulo | star-delta relay |
| PSP | relé temporizado mantenido | maintained time relay |
| earth.sc., el. | relé temporizador | timing relay |
| earth.sc., el. | relé temporizador | spin clock |
| el. | relé térmico | bimetallic relay |
| el. | relé térmico | electro-thermal relay |
| el. | relé térmico | thermal relay |
| el. | relé térmico | bimetal relay |
| automat. | relé térmico de destellos | thermal flasher |
| earth.sc., el. | relé térmico de retardo | thermal timer relay |
| el. | relé vatimétrico | power relay |
| tech. | relé verificador | test relay |
| tech. | relé vibrador | clapper relay |
| commun. | relé vibrador telegráfico | vibrating telegraph relay |
| telegr. | relé vibrador telegráfico | vibrating relay telegraph |
| patents. | relés eléctricos | electric relays |
| gen. | relés eléctricos | relays, electric |
| el. | sala de relés de una subestación | substation relay room |
| gen. | salida del relé | relay output |
| sat.comm. | satélite-relé de datos | data relay satellite |
| mech.eng. | semicárter de relé de accesorios delantero | wheel case front half |
| mech.eng. | semicárter de relé de accesorios trasero | accessory gear box case rear half |
| comp., MS | servidor relé multimedia | media relay server (A server, in the perimeter network, that has two separate network interfaces or edges (one for accepting connections from internal clients and another for accepting connections from external clients) and that is used to enable applications to pass audio and video data across NATs and firewalls) |
| commun., el. | sistema de enclavamiento todo relés | relay interlocking system |
| gen. | sistema de relés de agua | water relaying system |
| el. | sistema de relés global | relay switch |
| el. | sistema de relés global | all-relay system |
| commun., IT | tarjeta de interfaz de relés de alarma | alarm relay interface card |
| commun., IT | tarjeta de interfaz de relés de alarma | ARI card |
| earth.sc., el. | temporización del relé | relay delay |
| tech. | tub-relé | relay valve |
| el. | tubo relé | trigger tube |
| transp. | técnica todo relés | relay-only technique |
| transp. | técnica todo relés | all-relay technique |
| tech. | unidad de cuadrante y relé auxiliar | dialing and auxiliary relay unit |
| automat. | válvula relé | relay valve |
| tech. | válvula-relé | relay valve |
