{"id":6996,"date":"2023-02-20T22:51:27","date_gmt":"2023-02-20T14:51:27","guid":{"rendered":"https:\/\/lorentzzi.com\/?post_type=product&#038;p=6996"},"modified":"2026-04-23T16:32:00","modified_gmt":"2026-04-23T08:32:00","slug":"lj12a3-4-z-bx-3-wire-inductive-proximity-sensor","status":"publish","type":"product","link":"https:\/\/lorentzzi.com\/pl\/products\/proximity-sensor\/inductive-proximity-sensor\/lj12a3-4-z-bx-3-wire-inductive-proximity-sensor\/","title":{"rendered":"3-przewodowy indukcyjny czujnik zbli\u017ceniowy LJ12A3-4-Z\/BX"},"content":{"rendered":"<h2><strong>Introduction:<\/strong><\/h2>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><strong>Lorentzzi\u00ae<\/strong> LJ12A3-4-Z\/BX is a popular M12 threaded 3-wire inductive proximity sensor that we have been using to measure metal objects; in our product line, we also refer to it as the <strong>LM12-3004NA<\/strong>.<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">&#8220;LJ&#8221; means it is inductive type, &#8220;12&#8221; indicates the diameter is M12, \u201cA\u201d indicates the shape is cylindrical, &#8220;3&#8221; indicates three-wire system, &#8220;4&#8221; indicates the detection distance is 4.0 mm, &#8220;Z&#8221; indicates the operating voltage is DC 6-36 V, and &#8220;BX&#8221; indicates the output is NPN normally open.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The following table is a description of more models:<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-17864 size-full\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/Lorentzzi-LJ12A3-4-Z-BX-3-wire-inductive-proximity-sensor-code-explanation.jpg\" alt=\"Lorentzzi LJ12A3 4 Z BX 3 wire inductive proximity sensor code explanation\" width=\"1024\" height=\"800\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/Lorentzzi-LJ12A3-4-Z-BX-3-wire-inductive-proximity-sensor-code-explanation.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/Lorentzzi-LJ12A3-4-Z-BX-3-wire-inductive-proximity-sensor-code-explanation-300x234.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/Lorentzzi-LJ12A3-4-Z-BX-3-wire-inductive-proximity-sensor-code-explanation-768x600.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/Lorentzzi-LJ12A3-4-Z-BX-3-wire-inductive-proximity-sensor-code-explanation-600x469.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/Lorentzzi-LJ12A3-4-Z-BX-3-wire-inductive-proximity-sensor-code-explanation-64x50.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Our LJ12A3-4-Z\/BX inductive proximity sensor housing is made of high-quality nickel-plated brass for corrosion resistance and filled with epoxy resin to achieve IP67 protection level.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The default cable length of this proximity sensor switch is 2 meters, which is longer than other competitors.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Typical applications include positioning moving objects, motion control and counting objects (if your application is counting, you can use it with our <\/span><span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/lorentzzi.com\/products\/timer-switch-and-counter\/pulse-counter\/jdm11-6h-6-digits-digital-counter\/\"><span style=\"font-weight: 400;\">JDM11-6H<\/span><\/a><\/span><span style=\"font-weight: 400;\"> to indicate the number of counts) and so on.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>If you would like to obtain wholesale pricing or technical support for our LJ12A3-4-Z\/BX sensor, please fill in the form at the bottom to inquire.<\/b><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><strong>Wiring Diagram:<\/strong><\/h2>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-17868 size-full\" src=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LJ12A3-4-Z-BX-inductive-proximity-sensor-wiring-diagram.jpg\" alt=\"LJ12A3 4 Z BX inductive proximity sensor wiring diagram\" width=\"1024\" height=\"512\" srcset=\"https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LJ12A3-4-Z-BX-inductive-proximity-sensor-wiring-diagram.jpg 1024w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LJ12A3-4-Z-BX-inductive-proximity-sensor-wiring-diagram-300x150.jpg 300w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LJ12A3-4-Z-BX-inductive-proximity-sensor-wiring-diagram-768x384.jpg 768w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LJ12A3-4-Z-BX-inductive-proximity-sensor-wiring-diagram-600x300.jpg 600w, https:\/\/lorentzzi.com\/wp-content\/uploads\/2023\/02\/LJ12A3-4-Z-BX-inductive-proximity-sensor-wiring-diagram-64x32.jpg 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/p>\n<h2><strong>Specifications:<\/strong><\/h2>\n<div class=\"supsystic-table-loader spinner\"style=\"background-color:#000000\"><\/div><div id=\"supsystic-table-176_17166\" class=\"supsystic-tables-wrap \" style=\" width:100%; visibility: hidden; \" data-table-width-fixed=\"100%\" data-table-width-mobile=\"100%\" ><table id=\"supsystic-table-176\" class=\"supsystic-table border lightboxImg cell-border\" data-id=\"176\" data-view-id=\"176_17166\" data-title=\"LJ12A3-4-Z\/BX 3 Wire Inductive Proximity Sensor\" data-currency-format=\"$1,000.00\" data-percent-format=\"10.00%\" data-date-format=\"DD.MM.YYYY\" data-time-format=\"HH:mm\" data-features=\"[&quot;after_table_loaded_script&quot;]\" data-search-value=\"\" data-lightbox-img=\"\" data-head-rows-count=\"1\" data-pagination-length=\"50,100,All\" data-auto-index=\"off\" data-searching-settings=\"{&quot;columnSearchPosition&quot;:&quot;bottom&quot;,&quot;minChars&quot;:&quot;0&quot;}\" data-lang=\"default\" data-override=\"{&quot;emptyTable&quot;:&quot;&quot;,&quot;info&quot;:&quot;&quot;,&quot;infoEmpty&quot;:&quot;&quot;,&quot;infoFiltered&quot;:&quot;&quot;,&quot;lengthMenu&quot;:&quot;&quot;,&quot;search&quot;:&quot;&quot;,&quot;previous&quot;:&quot;&quot;,&quot;next&quot;:&quot;&quot;,&quot;zeroRecords&quot;:&quot;&quot;,&quot;exportLabel&quot;:&quot;&quot;,&quot;file&quot;:&quot;default&quot;}\" data-merged=\"[]\" data-responsive-mode=\"0\" data-from-history=\"0\" ><thead><tr><th class=\"\" style=\"width:; padding: 0 !important;\"><\/th><th class=\"\" style=\"width:; padding: 0 !important;\"><\/th><\/tr><\/thead><tbody><tr style=\"height:px\" ><td data-cell-id=\"A1\" data-x=\"0\" data-y=\"1\" data-db-index=\"1\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"Product model\" data-order=\"Product model\" style=\"min-width:36.7063%; \" >Product model <\/td><td data-cell-id=\"B1\" data-x=\"1\" data-y=\"1\" data-db-index=\"1\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"LJ12A3-4-Z\/BX\" data-order=\"LJ12A3-4-Z\/BX\" style=\"min-width:63.2937%; \" >LJ12A3-4-Z\/BX <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A2\" data-x=\"0\" data-y=\"2\" data-db-index=\"2\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Type\" data-order=\"Type\" >Type <\/td><td data-cell-id=\"B2\" data-x=\"1\" data-y=\"2\" data-db-index=\"2\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Inductive\" data-order=\"Inductive\" >Inductive <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A3\" data-x=\"0\" data-y=\"3\" data-db-index=\"3\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"Detection distance\" data-order=\"Detection distance\" >Detection distance <\/td><td data-cell-id=\"B3\" data-x=\"1\" data-y=\"3\" data-db-index=\"3\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"4.0 mm\" data-order=\"4.0 mm\" >4.0 mm <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A4\" data-x=\"0\" data-y=\"4\" data-db-index=\"4\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Housing material\" data-order=\"Housing material\" >Housing material <\/td><td data-cell-id=\"B4\" data-x=\"1\" data-y=\"4\" data-db-index=\"4\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Nickel-plated brass or stainless steel\" data-order=\"Nickel-plated brass or stainless steel\" >Nickel-plated brass or stainless steel <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A5\" data-x=\"0\" data-y=\"5\" data-db-index=\"5\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"Working voltage\" data-order=\"Working voltage\" >Working voltage <\/td><td data-cell-id=\"B5\" data-x=\"1\" data-y=\"5\" data-db-index=\"5\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"DC6-36V\" data-order=\"DC6-36V\" >DC6-36V <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A6\" data-x=\"0\" data-y=\"6\" data-db-index=\"6\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Output current\" data-order=\"Output current\" >Output current <\/td><td data-cell-id=\"B6\" data-x=\"1\" data-y=\"6\" data-db-index=\"6\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"200 mA\" data-order=\"200 mA\" >200 mA <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A7\" data-x=\"0\" data-y=\"7\" data-db-index=\"7\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"Installation method\" data-order=\"Installation method\" >Installation method <\/td><td data-cell-id=\"B7\" data-x=\"1\" data-y=\"7\" data-db-index=\"7\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"Non-flush\" data-order=\"Non-flush\" >Non-flush <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A8\" data-x=\"0\" data-y=\"8\" data-db-index=\"8\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Output type\" data-order=\"Output type\" >Output type <\/td><td data-cell-id=\"B8\" data-x=\"1\" data-y=\"8\" data-db-index=\"8\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"NPN transistor, normally open\" data-order=\"NPN transistor, normally open\" >NPN transistor, normally open <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A9\" data-x=\"0\" data-y=\"9\" data-db-index=\"9\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"Thread size\" data-order=\"Thread size\" >Thread size <\/td><td data-cell-id=\"B9\" data-x=\"1\" data-y=\"9\" data-db-index=\"9\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"M12\" data-order=\"M12\" >M12 <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A10\" data-x=\"0\" data-y=\"10\" data-db-index=\"10\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Switching frequency\" data-order=\"Switching frequency\" >Switching frequency <\/td><td data-cell-id=\"B10\" data-x=\"1\" data-y=\"10\" data-db-index=\"10\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"500 Hz\" data-order=\"500 Hz\" >500 Hz <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A11\" data-x=\"0\" data-y=\"11\" data-db-index=\"11\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"Working temperature\" data-order=\"Working temperature\" >Working temperature <\/td><td data-cell-id=\"B11\" data-x=\"1\" data-y=\"11\" data-db-index=\"11\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"-25\u2103~65\u2103\" data-order=\"-25\u2103~65\u2103\" >-25\u2103~65\u2103 <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A12\" data-x=\"0\" data-y=\"12\" data-db-index=\"12\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Protection grade\" data-order=\"Protection grade\" >Protection grade <\/td><td data-cell-id=\"B12\" data-x=\"1\" data-y=\"12\" data-db-index=\"12\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"IP67\" data-order=\"IP67\" >IP67 <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A13\" data-x=\"0\" data-y=\"13\" data-db-index=\"13\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"Standard detected object\" data-order=\"Standard detected object\" >Standard detected object <\/td><td data-cell-id=\"B13\" data-x=\"1\" data-y=\"13\" data-db-index=\"13\" class=\"htCenter htMiddle bg-c7c7c7\" data-cell-type=\"text\" data-original-value=\"15*15*1 mm(St37-2)\" data-order=\"15*15*1 mm(St37-2)\" >15*15*1 mm(St37-2) <\/td><\/tr><tr style=\"height:px\" ><td data-cell-id=\"A14\" data-x=\"0\" data-y=\"14\" data-db-index=\"14\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Wiring method\" data-order=\"Wiring method\" >Wiring method <\/td><td data-cell-id=\"B14\" data-x=\"1\" data-y=\"14\" data-db-index=\"14\" class=\"htCenter htMiddle\" data-cell-type=\"text\" data-original-value=\"Pre-wired with 1.2 meters cable or aviation plug by default, and the cable length can also be customized.\" data-order=\"Pre-wired with 1.2 meters cable or aviation plug by default, and the cable length can also be customized.\" >Pre-wired with 1.2 meters cable or aviation plug by default, and the cable length can also be customized. <\/td><\/tr><\/tbody><\/table><!-- \/#supsystic-table-176.supsystic-table --><\/div><!-- \/.supsystic-tables-wrap --><!-- Tables Generator by Supsystic --><!-- Version:1.11.0 --><!-- http:\/\/supsystic.com\/ --><a title=\"WordPress Data Table Plugin\" style=\"display:none;\" href=\"https:\/\/supsystic.com\/plugins\/wordpress-data-table-plugin\/?utm_medium=love_link\" target=\"_blank\">WordPress Data Table Plugin<\/a>\n","protected":false},"excerpt":{"rendered":"<ol>\n<li><span style=\"font-weight: 400;\">Indukcyjny czujnik zbli\u017ceniowy z gwintem M12,<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Maksymalna odleg\u0142o\u015b\u0107 wykrywania 4,0 mm,<\/span><\/li>\n<li>NPN, wyj\u015bcie normalnie otwarte,<\/li>\n<li><span style=\"font-weight: 400;\">Z zabezpieczeniem przed odwrotn\u0105 polaryzacj\u0105 i zwarciem,<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Cz\u0119stotliwo\u015b\u0107 prze\u0142\u0105czania do 500 Hz,<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Stopie\u0144 ochrony IP67,<\/span><\/li>\n<\/ol>","protected":false},"featured_media":6995,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","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":"default","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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