{"id":395,"date":"2025-08-14T04:20:21","date_gmt":"2025-08-14T04:20:21","guid":{"rendered":"https:\/\/plcautomations.com\/products\/?post_type=product&#038;p=395"},"modified":"2025-08-14T04:20:21","modified_gmt":"2025-08-14T04:20:21","slug":"omron-g7l-2a-tub-cb-ac100-120-general-purpose-relay-class-b-insulation-quickconnect-terminal-upper-bracket-mounting-double-pole-single-throw-normally-open-contacts-17-to-20-4-ma-rated-load-current-100","status":"publish","type":"product","link":"https:\/\/plcautomations.com\/products\/product\/omron-g7l-2a-tub-cb-ac100-120-general-purpose-relay-class-b-insulation-quickconnect-terminal-upper-bracket-mounting-double-pole-single-throw-normally-open-contacts-17-to-20-4-ma-rated-load-current-100\/","title":{"rendered":"Omron G7L-2A-TUB-CB-AC100\/120 General Purpose Relay Class B Insulation QuickConnect Terminal Upper Bracket Mounting Double Pole Single Throw Normally Open Contacts 17 to 20.4 mA Rated Load Current 100 to 120 VAC Rated Load Voltage OMRON Automation and Safety"},"content":{"rendered":"<p>Here&#8217;s a detailed overview of the <strong>Omron G7L-2A-TUB-CB-AC100\/120<\/strong> general-purpose relay, designed for industrial control systems and automation applications.<\/p>\n<hr \/>\n<h2>\u2705 <strong>Pros<\/strong><\/h2>\n<h3>1. <strong>Wide Voltage Range<\/strong><\/h3>\n<ul>\n<li><strong>AC100\/120V<\/strong> rated load voltage range allows this relay to handle a variety of applications, particularly those with standard AC voltage systems in North America and other regions with similar electrical standards.<\/li>\n<\/ul>\n<h3>2. <strong>Reliable Switching with Double Pole Single Throw (DPST)<\/strong><\/h3>\n<ul>\n<li><strong>DPST (Double Pole Single Throw)<\/strong> configuration allows the relay to control <strong>two independent circuits<\/strong> at once, with <strong>normally open (NO)<\/strong> contacts, which is ideal for a variety of switching applications.<\/li>\n<\/ul>\n<h3>3. <strong>Class B Insulation<\/strong><\/h3>\n<ul>\n<li><strong>Class B<\/strong> insulation provides thermal stability up to <strong>130\u00b0C (266\u00b0F)<\/strong>, making it suitable for environments with higher temperatures or continuous operation.<\/li>\n<\/ul>\n<h3>4. <strong>QuickConnect Terminals<\/strong><\/h3>\n<ul>\n<li>The <strong>QuickConnect terminals<\/strong> simplify installation by reducing wiring time, allowing for easier and faster connections, which is particularly useful in industrial settings with tight spaces.<\/li>\n<\/ul>\n<h3>5. <strong>Compact and Easy to Mount<\/strong><\/h3>\n<ul>\n<li>The relay features <strong>upper bracket mounting<\/strong>, which makes it easy to install within control panels, especially in dense panel layouts, and saves valuable space.<\/li>\n<\/ul>\n<h3>6. <strong>Low Coil Power Consumption<\/strong><\/h3>\n<ul>\n<li><strong>17 to 20.4 mA rated load current<\/strong> for coil operation ensures that the relay uses minimal power to operate, helping improve overall system efficiency.<\/li>\n<\/ul>\n<hr \/>\n<h2>\u274c <strong>Cons<\/strong><\/h2>\n<h3>1. <strong>Limited to AC Voltage<\/strong><\/h3>\n<ul>\n<li>This relay is only suitable for <strong>AC circuits<\/strong> (100 to 120V AC). It is not compatible with DC circuits, so you would need a different relay if your system requires DC voltage control.<\/li>\n<\/ul>\n<h3>2. <strong>Relatively Low Current Handling<\/strong><\/h3>\n<ul>\n<li>The <strong>current rating<\/strong> for the relay is lower than some high-power relays, which limits its use in high-current applications or systems requiring substantial load switching.<\/li>\n<\/ul>\n<h3>3. <strong>No Auxiliary Contacts<\/strong><\/h3>\n<ul>\n<li>Unlike some other relays, this model does not offer <strong>auxiliary contacts<\/strong> for feedback or status monitoring, which could be useful in more complex systems or safety-critical applications.<\/li>\n<\/ul>\n<h3>4. <strong>No Advanced Protection Features<\/strong><\/h3>\n<ul>\n<li>It lacks built-in <strong>overload protection<\/strong> or <strong>arc suppression<\/strong>, meaning additional external components might be needed in systems where protection against power surges or faults is critical.<\/li>\n<\/ul>\n<h3>5. <strong>Only Normally Open Contacts<\/strong><\/h3>\n<ul>\n<li>The relay uses <strong>normally open (NO) contacts<\/strong>, which limits its use in applications requiring <strong>normally closed (NC)<\/strong> contacts for specific control functions.<\/li>\n<\/ul>\n<hr \/>\n<h2>\ud83d\udcac <strong>Q&amp;A<\/strong><\/h2>\n<h3><strong>Q: Can I use this relay in a DC system?<\/strong><\/h3>\n<p><strong>A:<\/strong> No, this relay is specifically designed for <strong>AC control circuits<\/strong> (100-120V AC). If you need to control DC circuits, you&#8217;d need a relay rated for DC applications.<\/p>\n<hr \/>\n<h3><strong>Q: What types of loads is this relay best suited for?<\/strong><\/h3>\n<p><strong>A:<\/strong> It\u2019s ideal for <strong>low-to-medium power AC loads<\/strong>, such as lighting, small motors, or control systems. However, it&#8217;s not suitable for <strong>high-current applications<\/strong> where heavier-duty relays are required.<\/p>\n<hr \/>\n<h3><strong>Q: How does the QuickConnect terminal feature work?<\/strong><\/h3>\n<p><strong>A:<\/strong> <strong>QuickConnect terminals<\/strong> simplify wiring by allowing quick and secure connections without needing a separate tool, which speeds up the installation process and reduces potential wiring errors.<\/p>\n<hr \/>\n<h3><strong>Q: Does it have overload or short-circuit protection?<\/strong><\/h3>\n<p><strong>A:<\/strong> No, this relay does not include <strong>overload protection<\/strong> or <strong>short-circuit protection<\/strong>. You may need additional components such as fuses or circuit breakers in your system for safety.<\/p>\n<hr \/>\n<h3><strong>Q: Is it reliable for industrial applications?<\/strong><\/h3>\n<p><strong>A:<\/strong> Yes, with <strong>Class B insulation<\/strong> and a <strong>robust design<\/strong>, the <strong>G7L-2A-TUB-CB-AC100\/120<\/strong> is reliable for general-purpose industrial applications. However, it\u2019s best used in <strong>standard AC environments<\/strong>, as extreme conditions may require a more specialized relay.<\/p>\n<hr \/>\n<h3><strong>Q: Can I mount this relay in a control panel easily?<\/strong><\/h3>\n<p><strong>A:<\/strong> Yes, the <strong>upper bracket mounting<\/strong> feature allows easy installation inside control panels, even in <strong>tight or crowded spaces<\/strong>.<\/p>\n<hr \/>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<div id=\"productOverview_feature_div\" class=\"celwidget\" data-feature-name=\"productOverview\" data-csa-c-type=\"widget\" data-csa-c-content-id=\"productOverview\" data-csa-c-slot-id=\"productOverview_feature_div\" data-csa-c-asin=\"B005T73SBC\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-id=\"tjwycs-9hwzpp-t33cqo-in8opf\" data-cel-widget=\"productOverview_feature_div\">\n<div class=\"a-section a-spacing-small a-spacing-top-small\">\n<table class=\"a-normal a-spacing-micro\">\n<tbody>\n<tr class=\"a-spacing-small po-connector_type\">\n<td class=\"a-span3\"><span class=\"a-size-base a-text-bold\">Connector Type<\/span><\/td>\n<td class=\"a-span9\"><span class=\"a-size-base po-break-word\">Quick Connect<\/span><\/td>\n<\/tr>\n<tr class=\"a-spacing-small po-contact.material\">\n<td class=\"a-span3\"><span class=\"a-size-base a-text-bold\">Contact Material<\/span><\/td>\n<td class=\"a-span9\"><span class=\"a-size-base po-break-word\">Silver<\/span><\/td>\n<\/tr>\n<tr class=\"a-spacing-small po-contact.type\">\n<td class=\"a-span3\"><span class=\"a-size-base a-text-bold\">Contact Type<\/span><\/td>\n<td class=\"a-span9\"><span class=\"a-size-base po-break-word\">Normally Closed, Normally Open<\/span><\/td>\n<\/tr>\n<tr class=\"a-spacing-small po-current_rating\">\n<td class=\"a-span3\"><span class=\"a-size-base a-text-bold\">Current Rating<\/span><\/td>\n<td class=\"a-span9\"><span class=\"a-size-base po-break-word\">20.4 Milliamps<\/span><\/td>\n<\/tr>\n<tr class=\"a-spacing-small po-mounting_type\">\n<td class=\"a-span3\"><span class=\"a-size-base a-text-bold\">Mounting Type<\/span><\/td>\n<td class=\"a-span9\"><span class=\"a-size-base po-break-word\">Upper Bracket Mounting<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Product details<\/h2>\n<div id=\"detailBullets_feature_div\">\n<ul class=\"a-unordered-list a-nostyle a-vertical a-spacing-none detail-bullet-list\">\n<li><span class=\"a-list-item\"><span class=\"a-text-bold\">Is Discontinued By Manufacturer \u200f : \u200e\u00a0<\/span>No<\/span><\/li>\n<li><span class=\"a-list-item\"><span class=\"a-text-bold\">Product Dimensions \u200f : \u200e\u00a0<\/span>2.7 x 1.4 x 1.8 inches; 0.01 ounces<\/span><\/li>\n<li><span class=\"a-list-item\"><span class=\"a-text-bold\">Item model number \u200f : \u200e\u00a0<\/span>G7L-2A-TUB-CB-AC100\/120<\/span><\/li>\n<\/ul>\n<\/div>\n<\/div>\n<\/div>\n<div id=\"featurebullets_feature_div\" class=\"celwidget\" data-feature-name=\"featurebullets\" data-csa-c-type=\"widget\" data-csa-c-content-id=\"featurebullets\" data-csa-c-slot-id=\"featurebullets_feature_div\" data-csa-c-asin=\"B005T73SBC\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-id=\"qst2bb-r9zxno-sbrv0r-jh5hmi\" data-cel-widget=\"featurebullets_feature_div\">\n<div id=\"feature-bullets\" class=\"a-section a-spacing-medium a-spacing-top-small\">\n<hr class=\"a-divider-normal\" aria-hidden=\"true\" \/>\n<h1 class=\"a-size-base-plus a-text-bold\">About this item<\/h1>\n<ul class=\"a-unordered-list a-vertical a-spacing-mini\">\n<li class=\"a-spacing-mini\"><span class=\"a-list-item\">Electric relay for controlling electric signals in low current applications<\/span><\/li>\n<li class=\"a-spacing-mini\"><span class=\"a-list-item\">Quick-connect terminal for routing current directly through the contacts<\/span><\/li>\n<li class=\"a-spacing-mini\"><span class=\"a-list-item\">DPST-NO for simple on\/off switching<\/span><\/li>\n<li class=\"a-spacing-mini\"><span class=\"a-list-item\">Insulation meets UL Class B for flame resistant materials<\/span><\/li>\n<li class=\"a-spacing-mini\"><span class=\"a-list-item\">UL recognized for safety and CSA certified for quality assurance<\/span><\/li>\n<\/ul>\n<h2 class=\"default\">Product Description<\/h2>\n<div id=\"productDescription\" class=\"a-section a-spacing-small\">\n<p>This Omron G7L-2A-TUB-CB-AC100\/120 general purpose relay has Class B rated insulation material, quick-connect terminal connections, upper-bracket mounting, and is suitable for use in high capacity voltage applications. This relay has double pole single throw normally open (DPST-NO) contacts, an input current rating of 17 to 20.4 mA and a load rating of 220VAC at 25 amp, with an input of 100 to 120VAC. This relay has Underwriter&#8217;s Laboratories (UL) Class B rated insulation material for flame resistance, and quick-connect terminals for routing current directly through the contacts. It is designed to mount to an upper-bracket in an equipment rack. This general purpose relay is suitable for high capacity voltage applications such as fluid pump controls in the water and chemical processing industries.<\/p>\n<h5>Specifications<\/h5>\n<p>Contact FormDPST-NOInput Current Rating17 to 20.4 mAInput Voltage100 to 120VACLoad Rating220VAC, 25 ampDielectric Strength4,000VACOperating Temperature-25 to +60 degrees CEnclosure Dimensions*49 x 34.5 x 68.6mm (H x W x D)Standards MetUL (Underwriter&#8217;s Laboratories)<br \/>\nCSA (Canadian Standards Association)<\/p>\n<p>*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.<\/p>\n<p>Relay switches (also called an electrical relay or an electrical relay switch) use a small amount of power to control a larger source of power connected to electrical devices such as car motors, computers, and lighting installations. A basic relay switch has a control circuit with an electromagnetic coil and a load circuit with contacts and a lever. When current flows into the relay switch, it moves through the coil and a magnetic field is created, which causes the lever in the load circuit to move between contacts, either turning the device on or off. In a normally open (NO) relay switch, when power is supplied to the relay, the load circuit is closed and the power source connected to the relay is turned on. In a normally closed (NC) relay switch, when power is supplied to the relay, the load circuit is open and the power source connected to the relay is turned off. In other types of relay switches, non-moving parts such as transistors or semiconductors can be used as the control circuit to operate the switching mechanism. Relay switches can be controlled with an external switch, such as a light switch, or they can be connected to an automatically switched power source, such as a car ignition. One relay can operate multiple switches, and multiple relays can be operated with a single switch, with each relay operating independently from the other relays in the system.<\/p>\n<\/div>\n<\/div>\n<\/div>\n","protected":false},"featured_media":396,"comment_status":"open","ping_status":"closed","template":"","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":""},"product_brand":[33],"product_cat":[27],"product_tag":[28,36,37],"class_list":{"0":"post-395","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-omron","7":"product_cat-omron","8":"product_tag-omron","9":"product_tag-plcautomation","10":"product_tag-plcautomations","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-external"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Omron G7L-2A-TUB-CB-AC100\/120 General Purpose Relay Class B Insulation QuickConnect Terminal Upper Bracket Mounting Double Pole Single Throw Normally Open Contacts 17 to 20.4 mA Rated Load Current 100 to 120 VAC Rated Load Voltage OMRON Automation and Safety - Products<\/title>\n<meta name=\"description\" content=\"Omron G7L-2A-TUB-CB-AC100\/120 General Purpose Relay Class B Insulation QuickConnect Terminal Upper Bracket Mounting Double Pole Single Throw Normally Open Contacts 17 to 20.4 mA Rated Load Current 100 to 120 VAC Rated Load Voltage OMRON Automation and Safety Here&#039;s a detailed overview of the Omron G7L-2A-TUB-CB-AC100\/120 general-purpose relay, designed for industrial control systems and automation applications.\" \/>\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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Products","description":"Omron G7L-2A-TUB-CB-AC100\/120 General Purpose Relay Class B Insulation QuickConnect Terminal Upper Bracket Mounting Double Pole Single Throw Normally Open Contacts 17 to 20.4 mA Rated Load Current 100 to 120 VAC Rated Load Voltage OMRON Automation and Safety Here's a detailed overview of the Omron G7L-2A-TUB-CB-AC100\/120 general-purpose relay, designed for industrial control systems and automation applications.","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:\/\/plcautomations.com\/products\/product\/omron-g7l-2a-tub-cb-ac100-120-general-purpose-relay-class-b-insulation-quickconnect-terminal-upper-bracket-mounting-double-pole-single-throw-normally-open-contacts-17-to-20-4-ma-rated-load-current-100\/","og_locale":"en_US","og_type":"article","og_title":"Omron G7L-2A-TUB-CB-AC100\/120 General Purpose Relay Class B Insulation 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