{"id":7416,"date":"2026-08-21T18:14:59","date_gmt":"2026-08-21T18:14:59","guid":{"rendered":"https:\/\/gog-elec.com\/?p=7416"},"modified":"2026-08-21T18:15:01","modified_gmt":"2026-08-21T18:15:01","slug":"how-to-replace-a-light-switch-2","status":"publish","type":"post","link":"https:\/\/gog-elec.com\/es\/blog\/how-to-replace-a-light-switch-2\/","title":{"rendered":"C\u00f3mo reemplazar un interruptor de luz: gu\u00eda paso a paso para cada tipo"},"content":{"rendered":"<p>Si su interruptor antiguo est\u00e1 roto, no funciona correctamente, o si simplemente desea actualizar a un modelo m\u00e1s estilizado para su cocina, el reemplazo de un interruptor el\u00e9ctrico es una de las tareas de bricolaje m\u00e1s satisfactorias y f\u00e1ciles que puede realizar. El proceso en s\u00ed es r\u00e1pido y no cuesta m\u00e1s que unos pocos d\u00f3lares por las piezas involucradas, pero debe seguir los pasos indicados si desea tener \u00e9xito. La siguiente gu\u00eda explica todos los pasos necesarios: preparaci\u00f3n, precauciones de seguridad, remoci\u00f3n e instalaci\u00f3n adecuadas, diferencias entre los distintos modelos de interruptores, da\u00f1os comunes durante el proceso y cu\u00e1ndo contratar a un electricista.<\/p>\n<blockquote><p>La respuesta es s\u00ed, puede hacer el reemplazo del interruptor de luz con sus propias manos\u2014no es un trabajo dif\u00edcil para alguien que sabe trabajar con cuidado: simplemente apague su disyuntor, pruebe si el voltaje est\u00e1 apagado, retire el interruptor antiguo, tome una foto del cableado, saque los cables, ins\u00e9rtelos en el nuevo interruptor en el mismo orden en que estaban en el interruptor antiguo. En caso de que tenga un interruptor unipolar, no importa qu\u00e9 cables van a d\u00f3nde; en caso de que tenga un interruptor de 3 v\u00edas, el com\u00fan y los viajeros deben estar en la misma posici\u00f3n que antes.<\/p><\/blockquote>\n<h2>Qu\u00e9 preparar antes de comenzar<\/h2>\n<p>Aseg\u00farese de confirmar tres factores antes de comenzar el trabajo:<\/p>\n<ul>\n<li>Aseg\u00farese de que el nuevo interruptor sea del mismo tipo que el antiguo; un interruptor unipolar debe ser reemplazado por otro unipolar o un interruptor de tres v\u00edas por otro de tres v\u00edas (o deber\u00e1 conocer m\u00e1s sobre la configuraci\u00f3n del interruptor).<\/li>\n<li>Aseg\u00farese de que el nuevo interruptor encaje en su caja el\u00e9ctrica existente (tenga en cuenta que los interruptores inteligentes y los atenuadores son m\u00e1s grandes que los interruptores convencionales y los interruptores tienen aproximadamente 1 pulgada de profundidad).<\/li>\n<li>Confirme la ubicaci\u00f3n del disyuntor (averig\u00fce qu\u00e9 circuito opera el interruptor con el que va a trabajar y aseg\u00farese de que est\u00e9 apagado).<\/li>\n<\/ul>\n<p>Adem\u00e1s, considere si est\u00e1 reemplazando un interruptor por otro del mismo tipo (reemplazo igual por igual) o si est\u00e1 actualizando un interruptor o pasando de un interruptor simple a un atenuador o interruptor inteligente (lo que tendr\u00e1 implicaciones en el cableado con la compatibilidad del atenuador\/carga y si tiene o no un cable neutro).<\/p>\n<h2>Lista completa de herramientas<\/h2>\n<table>\n<thead>\n<tr>\n<th>Herramienta<\/th>\n<th>Por qu\u00e9 la Necesita<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Probador de voltaje<\/strong> (sin contacto o mult\u00edmetro)<\/td>\n<td>La herramienta m\u00e1s importante \u2014 verificar que la energ\u00eda est\u00e9 apagada<\/td>\n<\/tr>\n<tr>\n<td><strong>Destornillador de cabeza plana<\/strong><\/td>\n<td>Retirar los tornillos de la placa frontal<\/td>\n<\/tr>\n<tr>\n<td><strong>Destornillador Phillips<\/strong><\/td>\n<td>La mayor\u00eda de los tornillos de terminales de interruptores<\/td>\n<\/tr>\n<tr>\n<td><strong>Pelacables\/cortacables<\/strong><\/td>\n<td>Pelar y cortar cables si es necesario<\/td>\n<\/tr>\n<tr>\n<td><strong>Pinzas de punta fina<\/strong><\/td>\n<td>Doblar ganchos de cable y tirar de los cables<\/td>\n<\/tr>\n<tr>\n<td><strong>Tel\u00e9fono\/c\u00e1mara<\/strong><\/td>\n<td>Fotografiar el cableado antes de desconectar<\/td>\n<\/tr>\n<tr>\n<td><strong>Linterna<\/strong><\/td>\n<td>Las cajas son oscuras y poco profundas<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ese es todo el kit \u2014 no se requieren habilidades especiales ni herramientas ex\u00f3ticas para un reemplazo b\u00e1sico.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7418\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/The-Rules-That-Never-Change.webp\" alt=\"The Rules That Never Change\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Seguridad primero: las reglas que nunca cambian<\/h2>\n<ul>\n<li>Aseg\u00farese de que el disyuntor est\u00e9 apagado \u2014 no solo el interruptor. Identifique el interruptor en el panel y ap\u00e1guelo.<\/li>\n<li>Verifique que el circuito est\u00e9 inactivo \u2014 use el probador de voltaje en los cables antes de tocarlos.<\/li>\n<li>Pruebe el dispositivo que piensa usar \u2014 aseg\u00farese de que el probador funcione en un enchufe activo antes de continuar.<\/li>\n<li>Use una mano siempre que sea posible dentro de la caja \u2014 esto mantiene la otra mano alejada de superficies conectadas a tierra.<\/li>\n<li>Si algo parece inusual \u2014 por ejemplo, si el aislamiento est\u00e1 quemado o la caja est\u00e1 atascada, detenga el trabajo y llame a un electricista.<\/li>\n<li>T\u00f3mese su tiempo \u2014 la principal causa de errores en el cableado es no examinar adecuadamente las representaciones visuales.<\/li>\n<\/ul>\n<h2>Identifique primero el tipo de interruptor<\/h2>\n<p>Abra la placa frontal y observe el cableado antes de comprar cualquier cosa:<\/p>\n<table>\n<thead>\n<tr>\n<th>Tipo de Interruptor<\/th>\n<th>C\u00f3mo reconocerlo<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Unipolar (SPST)<\/strong><\/td>\n<td>2 terminales de tornillo + tierra; controla la luz desde una ubicaci\u00f3n<\/td>\n<\/tr>\n<tr>\n<td><strong>3 v\u00edas<\/strong><\/td>\n<td>3 terminales de tornillo (com\u00fan + 2 viajeros) + tierra; dos interruptores controlan una luz<\/td>\n<\/tr>\n<tr>\n<td><strong>4 v\u00edas<\/strong><\/td>\n<td>4 terminales; tres o m\u00e1s interruptores controlan una luz<\/td>\n<\/tr>\n<tr>\n<td><strong>Doble polo (DPST)<\/strong><\/td>\n<td>4 terminales; conmuta los dos conductores activos de un circuito de 240V<\/td>\n<\/tr>\n<tr>\n<td><strong>Regulador de intensidad<\/strong><\/td>\n<td>Usualmente 2 terminales + tierra (o 3 para reguladores de 3 v\u00edas); perilla\/deslizador\/palanca<\/td>\n<\/tr>\n<tr>\n<td><strong>Interruptor inteligente<\/strong><\/td>\n<td>Mismos patrones de terminales + conexi\u00f3n neutra + antena\/cables<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Si no est\u00e1 seguro, cuente los terminales y tome una fotograf\u00eda \u2014 esa foto guiar\u00e1 todo el trabajo. En caso de duda sobre lo que tiene, nuestra gu\u00eda para <a href=\"https:\/\/gog-elec.com\/es\/blog\/what-are-the-four-types-of-light-switches\/\" rel=\"nofollow\">los cuatro tipos de interruptores de luz<\/a> le ayuda a identificarlo.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7419\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/Removing-the-Old-Switch.webp\" alt=\"Retirar el interruptor antiguo\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Retirar el interruptor antiguo<\/h2>\n<p>Cuando se confirme que no hay energ\u00eda:<\/p>\n<ul>\n<li>Retire la cubierta: usualmente hay uno o dos tornillos; recuerde d\u00f3nde los coloc\u00f3.<\/li>\n<li>Tome una foto del cableado: este es el paso que se omite y que luego la gente lamenta; muestre qu\u00e9 cable va a qu\u00e9 terminal.<\/li>\n<li>Saque el interruptor, aflojando los tornillos en la parte superior e inferior del interruptor (los tornillos se usan para fijar el interruptor); tire del cuerpo del interruptor por las pesta\u00f1as.<\/li>\n<li>Identify the wires that the switch has: in the case of a single-pole switch, there are two wires attached to the brass terminals (line and load) and a ground (bare copper or green). There might be other wires in the box; the wires that are attached to the switch are the ones that are important.<\/li>\n<li>Disconnect the wires: loosen the screws and take off each wire. Make hooks straight, using pliers to help you.<\/li>\n<\/ul>\n<h2>Connecting the New Switch<\/h2>\n<p>For a regular single-pole switch (which is what most of us would be familiar with):<\/p>\n<ul>\n<li>Strip the wires if there is a need for it \u2014 approximately \u00bd to \u00be of an inch of bare copper wire (as was the case with the old switch).<\/li>\n<li>Make hooks \u2014 using pliers, bend every wire in the clockwise direction so that screws grab the wires when in the position of tightening.<\/li>\n<li>Join the two hot wires by connecting one of them to every brass terminal. The fact is that there is no right or wrong way to do this with a single-pole switch as with it you only have to open or close the circuit.<\/li>\n<li>Connect the ground wire \u2014 either bare copper wire or green wire should be connected with the green screw and if there is a pigtail ground, make sure to connect it there.<\/li>\n<li>Tighten screws well \u2014 they should not be loose; loose terminals are the main cause of overheating of switches.<\/li>\n<\/ul>\n<h2>Mounting &amp; Testing<\/h2>\n<ul>\n<li>Put the wires in the box in such a manner that they are folded neatly, not crammed in. Keep the switches flat in position.<\/li>\n<li>Fasten the switches onto the box using a top and bottom screw in a straight and tight way.<\/li>\n<li>Attach the faceplate to the switches.<\/li>\n<li>Switch on the power at the breaker.<\/li>\n<li>Test the switch; if it has worked properly, then 3-way testing should be performed at both locations. If it does not work, or the breaker trips, switch off the power and double check the wiring to ensure it has been done correctly.<\/li>\n<\/ul>\n<h2>How Each Switch Type Differs<\/h2>\n<ul>\n<li>Dimmer: same two terminals as a single-pole, but check load compatibility \u2014 LED dimmers must be LED-rated, and the total wattage must be within the dimmer&#8217;s rating. Our <a href=\"https:\/\/gog-elec.com\/es\/blog\/led-dimmer-switch-compatibility\/\" rel=\"nofollow\">Gu\u00eda de compatibilidad de atenuadores LED<\/a> covers the matching logic.<\/li>\n<li>In the case of three-way switches, the common wire needs to be connected in the same manner as the wire used in the previous switch. Make sure you conduct tests in both locations after the installation.<\/li>\n<li>Smart switch: usually needs a neutral wire at the box (many modern boxes have one tucked behind) and a deeper box; some models need a hub. The <a href=\"https:\/\/gog-elec.com\/es\/blog\/neutral-vs-non-neutral-smart-switches\/\" rel=\"nofollow\">neutral vs non-neutral smart switch guide<\/a> explains what to look for before buying.<\/li>\n<li>For four-way switches, the same steps would apply except there is a higher number of wires involved. It is best to first capture the images of the wires so that there are fewer chances for errors in reconnection.<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7420\" src=\"https:\/\/gog-elec.com\/wp-content\/uploads\/2026\/08\/Common-Mistakes-When-Changing-Switches.webp\" alt=\"Common Mistakes When Changing Switches\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>Common Mistakes When Changing Switches<\/h2>\n<table>\n<thead>\n<tr>\n<th>Error<\/th>\n<th>Result<\/th>\n<th>Prevenci\u00f3n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Skipping the voltage test<\/td>\n<td>Shock risk<\/td>\n<td>Always verify dead with a tester<\/td>\n<\/tr>\n<tr>\n<td>No photo before disconnecting<\/td>\n<td>Wrong rewiring, confusion<\/td>\n<td>Photograph the wiring first<\/td>\n<\/tr>\n<tr>\n<td>Loose terminal screws<\/td>\n<td>Hot switch, arcing, fire risk<\/td>\n<td>Snug every screw<\/td>\n<\/tr>\n<tr>\n<td>Wire hooks backwards (counterclockwise)<\/td>\n<td>Wires pop off under the screw<\/td>\n<td>Bend hooks clockwise<\/td>\n<\/tr>\n<tr>\n<td>Buying the wrong type (single-pole vs 3-way)<\/td>\n<td>Won&#8217;t work or dangerous<\/td>\n<td>Count terminals before buying<\/td>\n<\/tr>\n<tr>\n<td>Smart switch without a neutral<\/td>\n<td>Won&#8217;t power up<\/td>\n<td>Check the box for neutral first<\/td>\n<\/tr>\n<tr>\n<td>Forgetting the 3-way common terminal<\/td>\n<td>Switch doesn&#8217;t work right<\/td>\n<td>Match the photo exactly<\/td>\n<\/tr>\n<tr>\n<td>Overcrowding the box<\/td>\n<td>Won&#8217;t fit, pinched wires<\/td>\n<td>Fold wires neatly; bigger box if needed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>When to Call an Electrician<\/h2>\n<p>If you notice any of the following cases, take a break and consult with someone who knows about it.<\/p>\n<ul>\n<li>Aluminum cables (silver wires marked AL) \u2013 require specific devices and installations.<\/li>\n<li>No earth wire in the metal box \u2013 with older systems, it is possible that grounding is non-existent.<\/li>\n<li>Burnt up insulation, black marks \u2013 indicative of a more serious issue.<\/li>\n<li>More wires than you anticipated or something that confuses you.<\/li>\n<li>Changing a 4-way switch or double-pole switch if you are in a state of doubt.<\/li>\n<li>If the breaker keeps tripping even after it has been changed, the issue is likely deeper than the switch.<\/li>\n<\/ul>\n<h2>Cost: DIY vs Electrician<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u00cdtem<\/th>\n<th>Costo<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Standard single-pole switch<\/td>\n<td>$2-$8<\/td>\n<\/tr>\n<tr>\n<td>Interruptor regulador<\/td>\n<td>$10-$40<\/td>\n<\/tr>\n<tr>\n<td>Interruptor inteligente<\/td>\n<td>$15-$50<\/td>\n<\/tr>\n<tr>\n<td>Voltage tester (one-time)<\/td>\n<td>$10-$30<\/td>\n<\/tr>\n<tr>\n<td><strong>DIY total (typical)<\/strong><\/td>\n<td><strong>$2-$50 + 30 minutes<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Electrician call-out<\/strong><\/td>\n<td><strong>$75-$150<\/strong> (typically $50-75 labor + parts for a simple swap)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>It is evidently less costly to use the do-it-yourself (DIY) method for a basic repair; and with the safety measures noted, it is well worth the effort. However, for jobs which are slightly more complicated, hiring a certified electrician for anywhere between $75-150 can be worth the money.<\/p>\n<h2>Preguntas frecuentes<\/h2>\n<h3>Can I replace my light switch myself?<\/h3>\n<p>Indeed, changing a standard single-pole switch is something that anyone could do without prior experience. Just shut off the circuit and make sure the power is off, take a photo of the existing connections, remove the switch, connect the new switch (the color of the wire does not matter), and reinstall the switch plate. The entire process takes no more than 30 minutes and will cost $2 to $8. When it comes to 3-way switch or any other special devices or materials (such as aluminum wires or no ground), it is better to consult with a professional or read more about the working procedures.<\/p>\n<h3>What are the common mistakes when changing switches?<\/h3>\n<p>The important mistakes include: not taking a voltage reading, failing to take photos of the wiring before disconnecting, not tightening the terminal screws, making hooks twist counterclockwise, getting the wrong kind of switch and putting a smart switch where there is no neutral wire. On three-way switches, the error is reversing the common wire. However, taking a picture and bringing a manual with you is enough to guarantee that the mistakes won\u2019t happen.<\/p>\n<h3>How much would an electrician charge to change a light switch?<\/h3>\n<p>Generally, a simple replacement may cost between 75 and 150 USD. This amounts to the service call and\/or minimum charge (50-100 USD), in addition to some labor cost and the part defect (2-25 USD). More complicated situations require a lot more financing, e.g., 3-way and smart switch wiring where neutral is missing, old wiring. The cost of a do-it-yourself activity for the replacement may be 2-50 USD and it takes approximately 30 minutes, given that the wiring is done according to standard.<\/p>\n<h3>When replacing a light switch, which wire goes where?<\/h3>\n<p>In the case of a single-pole switch, the connections can be made using either hot wire; it makes no difference because the purpose of the switch is to either allow or prevent flow of electricity. The ground wire will always go to the green screw. However, in the case of a 3-way switch, the common wire should be connected to the COM terminal (often marked with a darker screw) and the two traveler wires should be connected to the other terminals. The position of switching terminal wires must match their previous positions exactly. In case you are not sure about any details, make sure to take a picture before removing the wires and use the wire stickers.<\/p>\n<h2>Referencias<\/h2>\n<ol>\n<li><a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/nfpa-70-standard-development\" rel=\"nofollow noopener\" target=\"_blank\">NFPA 70 (NEC) \u2014 Article 404 Switches, Installation Requirements<\/a><\/li>\n<li><a href=\"https:\/\/www.osha.gov\/electrical\" rel=\"nofollow noopener\" target=\"_blank\">OSHA \u2014 Electrical Safety for DIY and Workplace Tasks<\/a><\/li>\n<li><a href=\"https:\/\/www.ul.com\/\" rel=\"nofollow noopener\" target=\"_blank\">UL \u2014 UL 20 General-Use Snap Switches Standard<\/a><\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\/\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60669 \u2014 Switches for Household and Similar Fixed Installations<\/a><\/li>\n<li><a href=\"https:\/\/www.leviton.com\/\" rel=\"nofollow noopener\" target=\"_blank\">Leviton \u2014 Switch Installation and Wiring Resources<\/a><\/li>\n<li><a href=\"https:\/\/www.angi.com\/\" rel=\"nofollow noopener\" target=\"_blank\">Angi \u2014 Electrician Pricing Guide for Switch Replacement<\/a><\/li>\n<\/ol>\n<h2>Conclusi\u00f3n<\/h2>\n<p>One of the easiest occupations you may do around the house is to replace a light switch. This is done by gathering necessary tools, turning off the power, taking a picture of the wiring, removing the old switch and putting in the new one, making sure the positions of the 3-way switches and the grounding are the same. It costs $2-50 if you do it yourself or $75-150 if you hire an electrician, and the entire process will take about thirty minutes of your time. Despite that, the safety regulations must be complied with strictly, and the common mistakes you may encounter can be avoided.<\/p>","protected":false},"excerpt":{"rendered":"<p>If your old switch is broken, doesn&#8217;t function properly, or if you simply want to upgrade to a more stylish model for your kitchen, an electrical switch replacement is one of the most fulfilling and easiest DIY tasks you can do. The process itself is quick and doesn&#8217;t cost more than a few dollars for [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7417,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-7416","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/posts\/7416","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/comments?post=7416"}],"version-history":[{"count":2,"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/posts\/7416\/revisions"}],"predecessor-version":[{"id":7422,"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/posts\/7416\/revisions\/7422"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/media\/7417"}],"wp:attachment":[{"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/media?parent=7416"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/categories?post=7416"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gog-elec.com\/es\/wp-json\/wp\/v2\/tags?post=7416"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}