{"id":19250,"date":"2026-06-10T17:45:47","date_gmt":"2026-06-10T15:45:47","guid":{"rendered":"https:\/\/rdcomponents.com\/site\/?page_id=19250"},"modified":"2026-06-12T09:38:32","modified_gmt":"2026-06-12T07:38:32","slug":"heating-bulbs","status":"publish","type":"page","link":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/","title":{"rendered":"HEATING BULBS"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row][vc_column][vc_empty_space height=&#8221;17px&#8221;]\n<h2 class=\"mkd-custom-font-holder\" style=\"font-size: 44px\" data-font-size= 44>\nHEATING BULBS<\/h2>[vc_empty_space height=&#8221;17px&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;prodotti-row&#8221;][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985400906{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>\u00a0 \u00a0 \u00a0<span style=\"font-size: 30px;\">NT<\/span><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18673 size-medium aligncenter\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo.jpg 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/h2>\n<p><strong><span style=\"font-size: 18px;\">Single phase automatic reset<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><strong>Rated current:<\/strong>\u00a016A \/ 400V<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Contacts:<\/b> SPST \/ SPDT<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><strong>Working range<\/strong>: -40\u00b0C \/ +350\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/MODELS-NT-MERGE.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985405789{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>\u00a0 \u00a0 \u00a0<span style=\"font-size: 30px;\">SB<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18676 size-medium aligncenter\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SB-logo-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SB-logo-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SB-logo-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SB-logo-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SB-logo-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SB-logo.jpg 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">Two-phase manual reset<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><strong>Rated current:<\/strong>\u00a020A \/ 250VAC<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Contacts:<\/b>\u00a0DPST<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Working range:<\/b> +40\u00b0C \/+130\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2025\/01\/SB-MODELS-MERGE.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985410570{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>\u00a0 \u00a0 \u00a0<span style=\"font-size: 30px;\">SP-121-BF<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-18675 size-medium\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SP-logo-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SP-logo-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SP-logo-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SP-logo-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SP-logo-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/SP-logo.jpg 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">Safety thermostats with exchange contacts<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><strong>Rated current:<\/strong>\u00a0P-1: 20A \/ 250V &#8211; P-2: 1A \/ 250V<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><strong>Contacts:<\/strong>\u00a0DPST<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><strong>Disconnection temperature<\/strong>: 169\u00b0C \u00b18\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2025\/11\/SP-121-BF.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243;][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space][\/vc_column][\/vc_row][vc_row el_class=&#8221;prodotti-row&#8221;][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1778060471535{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2><span style=\"font-size: 30px;\">\u00a0 \u00a0 \u00a0VC<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18696 size-medium aligncenter\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/VC-logo-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/VC-logo-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/VC-logo-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/VC-logo-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/VC-logo-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/VC-logo.jpg 1000w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">3PST tripolar manual reset<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><strong>Rated current:<\/strong>\u00a032A \/ 250VAC<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><strong>Lifetime:<\/strong> 6.000 cycles<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Working range:<\/b> +60\u00b0 \/ +330\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2024\/07\/VC.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1778060466167{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2><span style=\"font-size: 30px;\">\u00a0 \u00a0 \u00a0VC<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-14801\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2024\/02\/VC-regolabile-02.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2024\/02\/VC-regolabile-02.jpg 251w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2024\/02\/VC-regolabile-02-100x100.jpg 100w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">3PST tripolar adjustable<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><b>Rated current:<\/b> 32A \/ 250V<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Lifetime:<\/b> 50.000 cycles<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Working range: <\/b>+60\u00b0 \/ +330\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2024\/02\/VC-3PST-Regolabile.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; css=&#8221;.vc_custom_1778081069215{padding-bottom: 25px !important;}&#8221; el_class=&#8221;rt-grid-item&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>\u00a0 \u00a0 \u00a0<span style=\"font-size: 30px;\">AGO<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18684 size-medium aligncenter\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/AGO-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/AGO-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/AGO-1024x1024.jpg 1024w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/AGO-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/AGO-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/AGO-1536x1536.jpg 1536w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/AGO-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/AGO-1125x1125.jpg 1125w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">SPST single-phase automatic reset<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><strong>Rated current:<\/strong>\u00a020A \/ 250V<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Lifetime:<\/b> 100.000 cycles<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><strong>Working range:<\/strong>\u00a0+50\u00b0 \/ +400\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/12\/AGO.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243;][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space][\/vc_column][\/vc_row][vc_row el_class=&#8221;prodotti-row&#8221;][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1778081655096{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>\u00a0 \u00a0 \u00a0<span style=\"font-size: 30px;\">ZA<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18683 size-medium aligncenter\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/ZA-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/ZA-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/ZA-1024x1024.jpg 1024w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/ZA-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/ZA-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/ZA-1536x1536.jpg 1536w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/ZA-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/ZA-1125x1125.jpg 1125w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">SPDT single-phase automatic reset<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><b>Rated current:<\/b> 15A \/ 400VAC<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Lifetime:<\/b> 100.000 cycles<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Working range:<\/b> -35\u00b0 \/ +320\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2025\/01\/ZA.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1778081652379{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>\u00a0 \u00a0 \u00a0<span style=\"font-size: 30px;\">WRC<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18693 size-medium aligncenter\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WRC-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WRC-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WRC-1024x1024.jpg 1024w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WRC-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WRC-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WRC-1536x1536.jpg 1536w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WRC-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WRC-1125x1125.jpg 1125w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">3PST tripolar automatic\u00a0<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><b>Rated current:<\/b> 16A \/ 380VAC<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Lifetime:<\/b> 100.000 cycles<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Working range:<\/b> +50\u00b0 \/ +350\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/12\/WRC.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1778081660235{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>\u00a0 \u00a0 \u00a0<span style=\"font-size: 30px;\">TB2PRM<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18692 size-medium aligncenter\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/TB2PRM-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/TB2PRM-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/TB2PRM-1024x1024.jpg 1024w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/TB2PRM-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/TB2PRM-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/TB2PRM-1536x1536.jpg 1536w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/TB2PRM-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/TB2PRM-1125x1125.jpg 1125w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">DPDT two-phase manual reset<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><b>Rated current:<\/b> 20A \/ 250VAC \u2013 16A \/ 400 VAC<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Lifetime:<\/b> 1.000 cycles<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Working range: <\/b>0\u00b0 \/ +355\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/12\/BIFASE-MANUALE.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243;][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space][\/vc_column][\/vc_row][vc_row el_class=&#8221;prodotti-row&#8221;][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1778081655096{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>\u00a0 \u00a0 \u00a0<span style=\"font-size: 30px;\">WQB<\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-18698 size-medium aligncenter\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WQB-300x300.jpg\" alt=\"\" width=\"300\" height=\"300\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WQB-300x300.jpg 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WQB-1024x1024.jpg 1024w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WQB-100x100.jpg 100w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WQB-768x768.jpg 768w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WQB-1536x1536.jpg 1536w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WQB-550x550.jpg 550w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/WQB-1125x1125.jpg 1125w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong><span style=\"font-size: 18px;\">DPST bipolar manual reset<\/span><\/strong><\/p>\n<p class=\"product-desc\"><span style=\"font-size: 18px;\"><strong>Rated current:<\/strong> 20A \/ 250VAC<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><b>Lifetime:<\/b> 60.000 cycles<\/span><\/p>\n<p><span style=\"font-size: 18px;\"><strong>Working range:<\/strong>\u00a0+50\u00b0C \/ +350\u00b0C<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<div class=\"bottoni-prodotto\"><a class=\"btn-prodotto scheda\" href=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2022\/12\/WQB.pdf\" target=\"_blank\" rel=\"noopener\">TECHNICAL SHEET<\/a><\/div>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243;][\/vc_column][vc_column width=&#8221;1\/4&#8243;][\/vc_column][\/vc_row][vc_row][vc_column][vc_empty_space height=&#8221;100px&#8221;][vc_column_text css_animation=&#8221;slideInLeft&#8221; css=&#8221;&#8221;]<\/p>\n<div class=\"link-destinazione\"><span style=\"font-size: 30px;\"><a class=\"dest-link\" href=\"https:\/\/www.rdc-service.it\/en\/product-category\/termostati-a-bulbo\/\" target=\"_blank\" rel=\"noopener\">BULB THERMOSTATS ON <img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11849\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2021\/09\/Logo-link-per-sito.png\" alt=\"\" width=\"111\" height=\"48\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2021\/09\/Logo-link-per-sito.png 372w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2021\/09\/Logo-link-per-sito-300x129.png 300w\" sizes=\"auto, (max-width: 111px) 100vw, 111px\" \/><\/a><\/span><\/div>\n<p>[\/vc_column_text][vc_column_text css_animation=&#8221;slideInLeft&#8221; css=&#8221;&#8221;]<\/p>\n<div class=\"link-destinazione\"><span style=\"font-size: 23px;\"><a class=\"dest-link\" href=\"https:\/\/rdcomponents.com\/site\/en\/bulb-thermostats\/\">BACK TO BULB THERMOSTATS<\/a><\/span><\/div>\n<p>[\/vc_column_text][vc_empty_space height=&#8221;200px&#8221;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[vc_row][vc_column][vc_empty_space height=&#8221;17px&#8221;][vc_empty_space height=&#8221;17px&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;prodotti-row&#8221;][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985400906{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;] \u00a0 \u00a0 \u00a0NT Single phase automatic reset Rated current:\u00a016A \/ 400V Contacts: SPST \/ SPDT Working range: -40\u00b0C \/ +350\u00b0C &nbsp; TECHNICAL SHEET [\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985405789{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;] \u00a0 \u00a0 \u00a0SB Two-phase manual&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"full-width.php","meta":{"footnotes":""},"class_list":["post-19250","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>HEATING BULBS - R&amp;d Components Srl<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"HEATING BULBS - R&amp;d Components Srl\" \/>\n<meta property=\"og:description\" content=\"[vc_row][vc_column][vc_empty_space height=&#8221;17px&#8221;][vc_empty_space height=&#8221;17px&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;prodotti-row&#8221;][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985400906{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;] \u00a0 \u00a0 \u00a0NT Single phase automatic reset Rated current:\u00a016A \/ 400V Contacts: SPST \/ SPDT Working range: -40\u00b0C \/ +350\u00b0C &nbsp; TECHNICAL SHEET [\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985405789{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;] \u00a0 \u00a0 \u00a0SB Two-phase manual...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/\" \/>\n<meta property=\"og:site_name\" content=\"R&amp;d Components Srl\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-12T07:38:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Tempo di lettura stimato\" \/>\n\t<meta name=\"twitter:data1\" content=\"4 minuti\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/en\\\/heating-bulbs\\\/\",\"url\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/en\\\/heating-bulbs\\\/\",\"name\":\"HEATING BULBS - R&amp;d Components Srl\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/en\\\/heating-bulbs\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/en\\\/heating-bulbs\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/NT-logo-300x300.jpg\",\"datePublished\":\"2026-06-10T15:45:47+00:00\",\"dateModified\":\"2026-06-12T07:38:32+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/en\\\/heating-bulbs\\\/#breadcrumb\"},\"inLanguage\":\"it-IT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/rdcomponents.com\\\/site\\\/en\\\/heating-bulbs\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/en\\\/heating-bulbs\\\/#primaryimage\",\"url\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/NT-logo.jpg\",\"contentUrl\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/wp-content\\\/uploads\\\/2026\\\/05\\\/NT-logo.jpg\",\"width\":1000,\"height\":1000},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/en\\\/heating-bulbs\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"HEATING BULBS\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/#website\",\"url\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/\",\"name\":\"Rd Components Srl\",\"description\":\"R&amp;d Components\",\"publisher\":{\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"it-IT\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/#organization\",\"name\":\"Rd Components\",\"url\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"it-IT\",\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/wp-content\\\/uploads\\\/2021\\\/01\\\/Schermata-2021-01-15-alle-15.56.56.png\",\"contentUrl\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/wp-content\\\/uploads\\\/2021\\\/01\\\/Schermata-2021-01-15-alle-15.56.56.png\",\"width\":2208,\"height\":764,\"caption\":\"Rd Components\"},\"image\":{\"@id\":\"https:\\\/\\\/rdcomponents.com\\\/site\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"HEATING BULBS - R&amp;d Components Srl","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/","og_locale":"it_IT","og_type":"article","og_title":"HEATING BULBS - R&amp;d Components Srl","og_description":"[vc_row][vc_column][vc_empty_space height=&#8221;17px&#8221;][vc_empty_space height=&#8221;17px&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;prodotti-row&#8221;][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985400906{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;] \u00a0 \u00a0 \u00a0NT Single phase automatic reset Rated current:\u00a016A \/ 400V Contacts: SPST \/ SPDT Working range: -40\u00b0C \/ +350\u00b0C &nbsp; TECHNICAL SHEET [\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985405789{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;] \u00a0 \u00a0 \u00a0SB Two-phase manual...","og_url":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/","og_site_name":"R&amp;d Components Srl","article_modified_time":"2026-06-12T07:38:32+00:00","og_image":[{"width":1000,"height":1000,"url":"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Tempo di lettura stimato":"4 minuti"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/","url":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/","name":"HEATING BULBS - R&amp;d Components Srl","isPartOf":{"@id":"https:\/\/rdcomponents.com\/site\/#website"},"primaryImageOfPage":{"@id":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/#primaryimage"},"image":{"@id":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/#primaryimage"},"thumbnailUrl":"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo-300x300.jpg","datePublished":"2026-06-10T15:45:47+00:00","dateModified":"2026-06-12T07:38:32+00:00","breadcrumb":{"@id":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/#breadcrumb"},"inLanguage":"it-IT","potentialAction":[{"@type":"ReadAction","target":["https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/"]}]},{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/#primaryimage","url":"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo.jpg","contentUrl":"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2026\/05\/NT-logo.jpg","width":1000,"height":1000},{"@type":"BreadcrumbList","@id":"https:\/\/rdcomponents.com\/site\/en\/heating-bulbs\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/rdcomponents.com\/site\/"},{"@type":"ListItem","position":2,"name":"HEATING BULBS"}]},{"@type":"WebSite","@id":"https:\/\/rdcomponents.com\/site\/#website","url":"https:\/\/rdcomponents.com\/site\/","name":"Rd Components Srl","description":"R&amp;d Components","publisher":{"@id":"https:\/\/rdcomponents.com\/site\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/rdcomponents.com\/site\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"it-IT"},{"@type":"Organization","@id":"https:\/\/rdcomponents.com\/site\/#organization","name":"Rd Components","url":"https:\/\/rdcomponents.com\/site\/","logo":{"@type":"ImageObject","inLanguage":"it-IT","@id":"https:\/\/rdcomponents.com\/site\/#\/schema\/logo\/image\/","url":"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2021\/01\/Schermata-2021-01-15-alle-15.56.56.png","contentUrl":"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2021\/01\/Schermata-2021-01-15-alle-15.56.56.png","width":2208,"height":764,"caption":"Rd Components"},"image":{"@id":"https:\/\/rdcomponents.com\/site\/#\/schema\/logo\/image\/"}}]}},"rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Roberto Ferranti","author_link":"https:\/\/rdcomponents.com\/site\/author\/roberto\/"},"rttpg_comment":0,"rttpg_category":" <a href=\"https:\/\/rdcomponents.com\/site\/en\/\" rel=\"tag\">English<\/a>","rttpg_excerpt":"[vc_row][vc_column][vc_empty_space height=&#8221;17px&#8221;][vc_empty_space height=&#8221;17px&#8221;][\/vc_column][\/vc_row][vc_row el_class=&#8221;prodotti-row&#8221;][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985400906{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;] \u00a0 \u00a0 \u00a0NT Single phase automatic reset Rated current:\u00a016A \/ 400V Contacts: SPST \/ SPDT Working range: -40\u00b0C \/ +350\u00b0C &nbsp; TECHNICAL SHEET [\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/4&#8243; el_class=&#8221;rt-grid-item&#8221; css=&#8221;.vc_custom_1777985405789{padding-bottom: 25px !important;}&#8221;][vc_column_text css=&#8221;&#8221;] \u00a0 \u00a0 \u00a0SB Two-phase manual...","_links":{"self":[{"href":"https:\/\/rdcomponents.com\/site\/wp-json\/wp\/v2\/pages\/19250","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rdcomponents.com\/site\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/rdcomponents.com\/site\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/rdcomponents.com\/site\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rdcomponents.com\/site\/wp-json\/wp\/v2\/comments?post=19250"}],"version-history":[{"count":3,"href":"https:\/\/rdcomponents.com\/site\/wp-json\/wp\/v2\/pages\/19250\/revisions"}],"predecessor-version":[{"id":19256,"href":"https:\/\/rdcomponents.com\/site\/wp-json\/wp\/v2\/pages\/19250\/revisions\/19256"}],"wp:attachment":[{"href":"https:\/\/rdcomponents.com\/site\/wp-json\/wp\/v2\/media?parent=19250"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}