{"id":23129,"date":"2026-11-05T18:12:50","date_gmt":"2026-11-05T10:12:50","guid":{"rendered":"https:\/\/lorentzzi.com\/?p=23129"},"modified":"2026-11-06T14:27:32","modified_gmt":"2026-11-06T06:27:32","slug":"ksd301-ksd302-ksd303-thermostats","status":"publish","type":"post","link":"https:\/\/lorentzzi.com\/es\/ksd301-ksd302-ksd303-thermostats\/","title":{"rendered":"Termostatos KSD301, KSD302 y KSD303: definiciones, diferencias y c\u00f3mo utilizarlos"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"23129\" class=\"elementor elementor-23129\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-acd09af e-flex e-con-boxed e-con e-parent\" data-id=\"acd09af\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-99cdad4 elementor-widget elementor-widget-text-editor\" data-id=\"99cdad4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">\u00bfSabes por qu\u00e9 un termo puede mantener una temperatura constante sin fallos?<\/span><\/p><p><span style=\"font-weight: 400;\">La raz\u00f3n es sencilla: las teteras t\u00e9rmicas pueden apagarse y volver a encenderse autom\u00e1ticamente porque incorporan un termostato con contacto normalmente cerrado de los modelos KSD301, KSD302 o KSD303. Cuando la temperatura del agua alcanza la temperatura programada, el termostato corta la alimentaci\u00f3n el\u00e9ctrica y detiene el calentamiento. Cuando la temperatura desciende por debajo de la temperatura programada, reanuda el calentamiento, y este proceso se repite.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-041bd0f elementor-widget elementor-widget-image\" data-id=\"041bd0f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD301-KSD302-and-KSD303-Thermostats.jpg\" class=\"attachment-large size-large wp-image-23132\" alt=\"Termostatos KSD301, KSD302 y KSD303\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD301-KSD302-and-KSD303-Thermostats.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD301-KSD302-and-KSD303-Thermostats-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD301-KSD302-and-KSD303-Thermostats-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD301-KSD302-and-KSD303-Thermostats-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD301-KSD302-and-KSD303-Thermostats-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD301-KSD302-and-KSD303-Thermostats-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fbed22a elementor-widget elementor-widget-text-editor\" data-id=\"fbed22a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Para comprender mejor los termostatos KSD301 y KSD302, los presentaremos en detalle desde los cuatro aspectos siguientes:<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00bfQu\u00e9 son los termostatos KSD301, KSD302 y KSD303?<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00bfCu\u00e1les son sus principales diferencias?<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00bfC\u00f3mo se utilizan los termostatos KSD301, KSD302 y KSD303?<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Aplicaciones t\u00edpicas de los termostatos KSD301, KSD302 y KSD303.<\/span><\/li><\/ol><p><span style=\"font-weight: 400;\">Ahora vamos a responder a estas preguntas una por una.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d24b9e9 elementor-widget elementor-widget-heading\" data-id=\"d24b9e9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u00bfQu\u00e9 son los termostatos KSD301, KSD302 y KSD303?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c2ca0f7 elementor-widget elementor-widget-image\" data-id=\"c2ca0f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/The-Bimetallic-Strip-Inside-the-KSD-Thermal-Switch-Expands-and-Deforms-Due-to-Heat.jpg\" class=\"attachment-large size-large wp-image-23133\" alt=\"\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/The-Bimetallic-Strip-Inside-the-KSD-Thermal-Switch-Expands-and-Deforms-Due-to-Heat.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/The-Bimetallic-Strip-Inside-the-KSD-Thermal-Switch-Expands-and-Deforms-Due-to-Heat-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/The-Bimetallic-Strip-Inside-the-KSD-Thermal-Switch-Expands-and-Deforms-Due-to-Heat-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/The-Bimetallic-Strip-Inside-the-KSD-Thermal-Switch-Expands-and-Deforms-Due-to-Heat-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/The-Bimetallic-Strip-Inside-the-KSD-Thermal-Switch-Expands-and-Deforms-Due-to-Heat-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/The-Bimetallic-Strip-Inside-the-KSD-Thermal-Switch-Expands-and-Deforms-Due-to-Heat-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0a92d0a elementor-widget elementor-widget-text-editor\" data-id=\"0a92d0a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Los modelos KSD301, KSD302 y KSD303 son interruptores t\u00e9rmicos bimet\u00e1licos comunes. Cuando la temperatura alcanza un valor predeterminado, la l\u00e1mina bimet\u00e1lica se deforma debido al calor (expansi\u00f3n y contracci\u00f3n t\u00e9rmicas), lo que provoca que los contactos se cierren o se abran. Los modelos KSD301 y KSD302 se utilizan ampliamente en equipos el\u00e9ctricos para la regulaci\u00f3n de la temperatura del agua, la prevenci\u00f3n del funcionamiento en seco y la protecci\u00f3n contra el sobrecalentamiento.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-95e2679 elementor-widget elementor-widget-video\" data-id=\"95e2679\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/zDArNMnyF9c?si=YsImSIV4tVsX9Vve&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8ccee71 elementor-widget elementor-widget-text-editor\" data-id=\"8ccee71\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Estos interruptores t\u00e9rmicos ofrecen un amplio rango de temperatura ajustable, desde 0 \u00b0C, 20 \u00b0C, 40 \u00b0C, 65 \u00b0C, 80 \u2103, 100 \u2103 hasta un m\u00e1ximo de 300 \u00b0C.<\/span><\/p><p><span style=\"font-weight: 400;\">Admiten dos modos de contacto: normalmente cerrado (NC) y normalmente abierto (NO).<\/span><\/p><p><span style=\"font-weight: 400;\">Para aparatos de calefacci\u00f3n, como los hervidores el\u00e9ctricos, el termostato KSD301 o KSD302, de contacto normalmente cerrado, es una opci\u00f3n habitual. Cuando la temperatura alcanza el valor preestablecido (por ejemplo, 100 \u00b0C), el termostato pasa del estado cerrado al estado abierto, desconectando el circuito de calentamiento. Una vez que la temperatura desciende por debajo del umbral establecido, los contactos se cierran de nuevo y se reanuda el calentamiento.<\/span><\/p><p><span style=\"font-weight: 400;\">En el caso de los ventiladores de refrigeraci\u00f3n o los sistemas de refrigeraci\u00f3n, se utilizan interruptores t\u00e9rmicos KSD301\/KSD302 de contacto normalmente abierto para la protecci\u00f3n contra el exceso de temperatura. Por ejemplo, se puede instalar un termostato KSD301 de 40 \u00b0C en la parte inferior de la c\u00e1mara de calentamiento. Cuando la temperatura supera los 40 \u00b0C, los contactos del termostato se cierran y el ventilador se pone en marcha autom\u00e1ticamente, protegiendo as\u00ed a los componentes internos de los da\u00f1os causados por el sobrecalentamiento.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dadbf8 elementor-widget elementor-widget-heading\" data-id=\"2dadbf8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Diferencias clave entre los interruptores t\u00e9rmicos KSD301, KSD302 y KSD303<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f1478ab elementor-widget elementor-widget-text-editor\" data-id=\"f1478ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Al comprar un termostato de acci\u00f3n instant\u00e1nea de la serie KSD, los proveedores siempre preguntan qu\u00e9 modelo prefieres: \u00bfel KSD301, el KSD302 o el KSD303? Est\u00e1n muy bien informados, pero \u00bfcu\u00e1les son las principales diferencias entre estos tres modelos de termostatos?<\/span><\/p><p><span style=\"font-weight: 400;\">La principal diferencia radica en su corriente nominal de contacto o capacidad de carga.<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">KSD301: Corriente nominal de contacto: 10 A,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">KSD302: Corriente nominal de contacto: 16 A,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">KSD303: Corriente nominal de contacto: 30 A.<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">Debes seleccionar el modelo adecuado en funci\u00f3n de la potencia nominal de tu calefactor, equipo de refrigeraci\u00f3n u otros aparatos.<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">KSD301: Apto para cargas resistivas de hasta 1,5 kW a 220 V CA,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">KSD302: Apto para cargas resistivas de hasta 2,0 kW a 220 V CA,<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">KSD303: Apto para cargas resistivas de hasta 3,5 kW a 220 V CA.<\/span><\/li><\/ul><p><span style=\"font-weight: 400;\">Para cargas de mayor potencia que superen los rangos indicados anteriormente, utilice el termostato KSD con un <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/solid-state-relays\/\"><span style=\"font-weight: 400;\">rel\u00e9 de estado s\u00f3lido<\/span><\/a><\/span><span style=\"font-weight: 400;\"> o <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/products\/accessories\/cjx2-contactor\/\"><span style=\"font-weight: 400;\">Contactor de CA<\/span><\/a><\/span><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f19fb39 elementor-widget elementor-widget-heading\" data-id=\"f19fb39\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\u00bfC\u00f3mo se utilizan los termostatos KSD301, KSD302 y KSD303?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-92bec52 elementor-widget elementor-widget-text-editor\" data-id=\"92bec52\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">El uso correcto de los interruptores t\u00e9rmicos de la serie KSD puede ayudarte a lograr un control adecuado de la temperatura y a proteger tus equipos contra los riesgos de sobrecalentamiento.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Seg\u00fan nuestra experiencia, se deben seguir los cuatro pasos siguientes.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-095b27c elementor-widget elementor-widget-heading\" data-id=\"095b27c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Paso 1: Elecci\u00f3n de los termostatos KSD301, KSD302 y KSD303 adecuados<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a5e1af9 elementor-widget elementor-widget-heading\" data-id=\"a5e1af9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">1. Elige una temperatura adecuada<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-46dceb9 elementor-widget elementor-widget-text-editor\" data-id=\"46dceb9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Los modelos KSD301, KSD302 y KSD303 son interruptores de control de temperatura fija, totalmente diferentes de <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/tcx5-universal-pid-temperature-controller\/\"><span style=\"font-weight: 400;\">Reguladores de temperatura PID<\/span><\/a><\/span><span style=\"font-weight: 400;\"> que ofrecen un control de la temperatura m\u00e1s flexible.\u00a0<\/span><\/p><p><span style=\"font-weight: 400;\">Por lo tanto, a la hora de seleccionar el interruptor adecuado, el primer paso es elegir la temperatura adecuada.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-228fab0 elementor-widget elementor-widget-image\" data-id=\"228fab0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Used-in-Conjunction-With-SSR-Mounted-on-Heat-Sink.jpg\" class=\"attachment-large size-large wp-image-23134\" alt=\"\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Used-in-Conjunction-With-SSR-Mounted-on-Heat-Sink.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Used-in-Conjunction-With-SSR-Mounted-on-Heat-Sink-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Used-in-Conjunction-With-SSR-Mounted-on-Heat-Sink-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Used-in-Conjunction-With-SSR-Mounted-on-Heat-Sink-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Used-in-Conjunction-With-SSR-Mounted-on-Heat-Sink-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Used-in-Conjunction-With-SSR-Mounted-on-Heat-Sink-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ea2fa6 elementor-widget elementor-widget-text-editor\" data-id=\"1ea2fa6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Por ejemplo, si quieres cortar el suministro el\u00e9ctrico cuando la temperatura supere los 80 grados Celsius (por ejemplo, instalando estos interruptores de control de temperatura KSD301, KSD302 o KSD303 en nuestro <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/ssr-heat-sinks\/\"><span style=\"font-weight: 400;\">Disipador t\u00e9rmico SSR<\/span><\/a><\/span><span style=\"font-weight: 400;\"> para cortar la corriente cuando la temperatura supere los 80 grados Celsius, protegiendo as\u00ed el <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/solid-state-relay-problems-and-solutions-the-ultimate-guide\/\"><span style=\"font-weight: 400;\">SSR a causa de da\u00f1os por sobrecalentamiento<\/span><\/a><\/span><span style=\"font-weight: 400;\">), debe elegir el modelo de contacto normalmente cerrado KSD301, KSD302 o KSD303, con un rango de temperatura de 80 grados Celsius.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1c94d1f elementor-widget elementor-widget-heading\" data-id=\"1c94d1f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">2. Selecciona el tipo de salida<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d6e460 elementor-widget elementor-widget-text-editor\" data-id=\"9d6e460\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Los interruptores de control de temperatura de la serie KSD se pueden clasificar en dos tipos: normalmente cerrados y normalmente abiertos. Los de tipo normalmente cerrado se utilizan habitualmente para la protecci\u00f3n contra sobrecalentamiento, mientras que los de tipo normalmente abierto se emplean normalmente para el arranque de ventiladores activado por temperatura, alarmas, etc.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c0b04c elementor-widget elementor-widget-heading\" data-id=\"5c0b04c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">3. Determinar el m\u00e9todo de reinicio<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f35b55 elementor-widget elementor-widget-text-editor\" data-id=\"7f35b55\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Por lo general, los interruptores de corte por temperatura KSD301, KSD302 y KSD303 incorporan de serie una funci\u00f3n de reinicio autom\u00e1tico, lo que significa que cierran o abren autom\u00e1ticamente los contactos cuando la temperatura supera o queda por debajo del valor establecido. Si necesita un termostato sin funci\u00f3n de reinicio, consulte a su proveedor.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f5bb9ce elementor-widget elementor-widget-heading\" data-id=\"f5bb9ce\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Paso 2: Instalaci\u00f3n de los termostatos KSD301, KSD302 y KSD303<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-33103e8 elementor-widget elementor-widget-text-editor\" data-id=\"33103e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Como puedes ver, la superficie met\u00e1lica redonda del termostato de la serie KSD es el sensor de temperatura.<\/span><\/p><p><span style=\"font-weight: 400;\">Esta superficie redonda met\u00e1lica debe estar en contacto directo con la superficie calefactora y fijada firmemente con dos tornillos M4.<\/span><\/p><p><span style=\"font-weight: 400;\">Adem\u00e1s, es necesario aplicar una fina capa de pasta t\u00e9rmica entre la superficie de contacto y el objeto que se desea calentar, con el fin de reducir los espacios de aire y garantizar as\u00ed una medici\u00f3n precisa de la temperatura.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbd5fda elementor-widget elementor-widget-image\" data-id=\"dbd5fda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/Apply-Thermal-Grease-to-the-KSD301-Thermostat.jpg\" class=\"attachment-large size-large wp-image-23142\" alt=\"Aplica pasta t\u00e9rmica al termostato KSD301\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/Apply-Thermal-Grease-to-the-KSD301-Thermostat.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/Apply-Thermal-Grease-to-the-KSD301-Thermostat-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/Apply-Thermal-Grease-to-the-KSD301-Thermostat-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/Apply-Thermal-Grease-to-the-KSD301-Thermostat-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/Apply-Thermal-Grease-to-the-KSD301-Thermostat-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/Apply-Thermal-Grease-to-the-KSD301-Thermostat-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09619c8 elementor-widget elementor-widget-heading\" data-id=\"09619c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Paso 3: Cableado de los termostatos KSD301, KSD302 y KSD303<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf4c23d elementor-widget elementor-widget-text-editor\" data-id=\"cf4c23d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">El termostato de la serie KSD solo tiene dos bornes sin distinci\u00f3n de polaridad, lo que permite conectarlo en serie en un circuito. Se recomienda conectarlo en serie con el cable de fase (220 V) de la carga de calefacci\u00f3n.\u00a0<\/span><\/p><p>A continuaci\u00f3n se muestra un esquema de cableado t\u00edpico y sencillo (a la hora de realizar el cableado, se deben utilizar algunos dispositivos de protecci\u00f3n, como un MCB [disyuntor miniatura] o un RCBO [disyuntor diferencial con protecci\u00f3n contra sobrecorriente]):<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6351d68 elementor-widget elementor-widget-image\" data-id=\"6351d68\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Wiring-Diagram.jpg\" class=\"attachment-large size-large wp-image-23135\" alt=\"Esquema de cableado de los termostatos de la serie KSD\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Wiring-Diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Wiring-Diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Wiring-Diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Wiring-Diagram-18x9.jpg 18w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Wiring-Diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2026\/11\/KSD-Series-Thermostats-Wiring-Diagram-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-94b4759 elementor-widget elementor-widget-text-editor\" data-id=\"94b4759\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Nota: La corriente de carga no debe superar la corriente nominal del termostato. Para sistemas de calefacci\u00f3n de alta potencia (por ejemplo, que superen los 3,5 kW), lo m\u00e1s recomendable es utilizar un KSD301 para controlar un rel\u00e9 de estado s\u00f3lido o un contactor de CA; nunca alimente directamente elementos calefactores de alta corriente.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1701d88 elementor-widget elementor-widget-heading\" data-id=\"1701d88\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">Paso 4: Prueba de funcionamiento, uso a largo plazo y mantenimiento<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c85643e elementor-widget elementor-widget-text-editor\" data-id=\"c85643e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Una vez completados los tres primeros pasos, puedes pasar a la fase de funcionamiento de prueba, al funcionamiento a largo plazo y al mantenimiento rutinario.<\/span><\/p><p><span style=\"font-weight: 400;\">En primer lugar, conecta brevemente la alimentaci\u00f3n del circuito para comprobar su funcionamiento. Por ejemplo, si ha seleccionado un termostato KSD301 de 80 \u00b0C normalmente cerrado y desea que proteja su rel\u00e9 de estado s\u00f3lido (SSR) contra el sobrecalentamiento, durante la prueba de funcionamiento, caliente el sensor de temperatura met\u00e1lico del KSD301 hasta 80 \u00b0C y compruebe si corta la se\u00f1al de control del SSR. Si la alimentaci\u00f3n del SSR se interrumpe inmediatamente, el KSD301 funciona correctamente. De lo contrario, compruebe cuidadosamente el cableado o verifique si el termostato est\u00e1 defectuoso.<\/span><\/p><p><span style=\"font-weight: 400;\">Una vez superadas las pruebas, el sistema puede ponerse en funcionamiento a largo plazo. Por favor, realice un mantenimiento peri\u00f3dico, como comprobar su funcionamiento cada tres meses.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2b2d4bf elementor-widget elementor-widget-heading\" data-id=\"2b2d4bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Aplicaciones t\u00edpicas de los termostatos KSD301, KSD302 y KSD303<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1cf588d elementor-widget elementor-widget-text-editor\" data-id=\"1cf588d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Los protectores t\u00e9rmicos bimet\u00e1licos KSD301, KSD302 y KSD303 se utilizan ampliamente en equipos de calefacci\u00f3n debido a su facilidad de uso, y tambi\u00e9n pueden emplearse en motores, transformadores, etc., para evitar aver\u00edas por sobrecalentamiento.<\/span><\/p><p><span style=\"font-weight: 400;\">Puedes consultar la siguiente informaci\u00f3n para obtener m\u00e1s detalles sobre los dispositivos que se pueden utilizar con los protectores t\u00e9rmicos bimet\u00e1licos KSD301, KSD302 y KSD303:<\/span><\/p><ol><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Aparatos de calefacci\u00f3n el\u00e9ctricos<\/b><span style=\"font-weight: 400;\">: Calentadores de agua el\u00e9ctricos, hervidores el\u00e9ctricos, cafeteras, dispensadores de agua, grifos de agua caliente y planchas de vapor.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Almohadillas t\u00e9rmicas y l\u00e1minas t\u00e9rmicas<\/b><span style=\"font-weight: 400;\">: L\u00e1minas calefactoras de PI, almohadillas calefactoras de silicona, calentadores de cama, calentadores de pies.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Peque\u00f1os aparatos de calefacci\u00f3n dom\u00e9sticos<\/b><span style=\"font-weight: 400;\">: Hornos el\u00e9ctricos, freidoras sin aceite, parrillas el\u00e9ctricas, toalleros y calefactores de ba\u00f1o.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Protecci\u00f3n contra el sobrecalentamiento de motores y transformadores<\/b><span style=\"font-weight: 400;\">: Motores peque\u00f1os, motores de ventilador, transformadores de potencia, paquetes de bater\u00edas, m\u00f3dulos de carga.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Peque\u00f1os conjuntos de calefacci\u00f3n industrial<\/b><span style=\"font-weight: 400;\">: Placas calefactoras industriales, peque\u00f1os moldes calefactores, calefactores auxiliares para armarios, unidades calefactoras con termostato.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Otros equipos<\/b><span style=\"font-weight: 400;\">:<\/span> <span style=\"font-weight: 400;\">Deshumidificadores, humidificadores, esterilizadores, secavajillas, m\u00e1quinas para hacer yogur.<\/span><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fcfaa42 elementor-widget elementor-widget-heading\" data-id=\"fcfaa42\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusi\u00f3n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ea90ba0 elementor-widget elementor-widget-text-editor\" data-id=\"ea90ba0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">En resumen, los modelos KSD301, KSD302 y KSD303 son protectores t\u00e9rmicos bimet\u00e1licos sencillos, f\u00e1ciles de instalar y muy utilizados en el control de la calefacci\u00f3n.<\/span><\/p><p><span style=\"font-weight: 400;\">Tanto si desea mantener una temperatura constante como si quiere proteger otros equipos de los da\u00f1os causados por el sobrecalentamiento, los termostatos KSD301, KSD302 y KSD303 pueden ayudarle.<\/span><\/p><p><span style=\"font-weight: 400;\">Si desea obtener m\u00e1s informaci\u00f3n sobre los protectores t\u00e9rmicos bimet\u00e1licos KSD301, KSD302 y KSD303, p\u00f3ngase en contacto con nosotros, <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/es\/\"><span style=\"font-weight: 400;\">Lorentzzi El\u00e9ctrico<\/span><\/a><\/span><span style=\"font-weight: 400;\">, \u00a1para m\u00e1s informaci\u00f3n!<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Do you know why a thermos kettle can maintain a constant temperature without failure? The reason is simple: thermos kettles can automatically shut off and restart because they have a built-in KSD301, KSD302, or KSD303 normally closed contact thermostat. When the water temperature reaches the set temperature, the thermostat cuts off the power and stops [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":23130,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-23129","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-temperature-controller"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.5 (Yoast SEO v28.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>KSD301, KSD302, KSD303 Thermostats: Definitions, Differences and How to Use<\/title>\n<meta name=\"description\" content=\"This blog post will explain what the KSD301, KSD302, and KSD303 thermostats are, what the differences are between them, and how they work.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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