{"id":6523,"date":"2026-10-24T13:49:02","date_gmt":"2026-10-24T13:49:02","guid":{"rendered":"https:\/\/www.rendatsp.com\/product\/siemens-3rh2122-1bb40-contactor-relay-2-no-2-nc-24-v-dc-screw-terminal-frame-size-s00\/"},"modified":"2026-10-24T13:49:02","modified_gmt":"2026-10-24T13:49:02","slug":"siemens-3rh2122-1bb40-contactor-relay-2-no-2-nc-24-v-dc-screw-terminal-frame-size-s00","status":"publish","type":"product","link":"https:\/\/www.rendatsp.com\/ar\/product\/siemens-3rh2122-1bb40-contactor-relay-2-no-2-nc-24-v-dc-screw-terminal-frame-size-s00\/","title":{"rendered":"Siemens 3RH2122-1BB40 contactor relay, 2 NO + 2 NC, 24 V DC, screw terminal, frame size S00"},"content":{"rendered":"<p>The Siemens 3RH2122-1BB40 is described by Siemens as: contactor relay, 2 NO + 2 NC, 24 V DC, screw terminal, frame size S00.<\/p>\n<p>SIRIUS 3RH2 contactor relays and auxiliary switch blocks are used in control circuits to multiply contacts, interlock starters and interface PLC outputs with higher-power coils.<\/p>\n<p>See our <a href=\"https:\/\/www.rendatsp.com\/ar\/product-category\/siemens\/\">Siemens range<\/a>.<\/p>\n<h3>Technical data<\/h3>\n<table>\n<tbody>\n<tr>\n<th>Siemens order number<\/th>\n<td>3RH2122-1BB40<\/td>\n<\/tr>\n<tr>\n<th>Product type designation<\/th>\n<td>3RH2<\/td>\n<\/tr>\n<tr>\n<th>Ambient temperature (operation)<\/th>\n<td>-25 &#8230; +60 \u00b0C<\/td>\n<\/tr>\n<tr>\n<th>Dimensions (W x H x D)<\/th>\n<td>45 x 57.5 x 73 mm<\/td>\n<\/tr>\n<tr>\n<th>Weight, approx.<\/th>\n<td>0.259 kg<\/td>\n<\/tr>\n<tr>\n<th>Condition<\/th>\n<td>New, original Siemens<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Main features<\/h3>\n<ul>\n<li>Contactor relay<\/li>\n<li>2 NO + 2 NC<\/li>\n<li>24 \u0641\u0648\u0644\u062a DC<\/li>\n<li>Screw terminal<\/li>\n<li>Frame size S00<\/li>\n<\/ul>\n<h3>Typical applications<\/h3>\n<ul>\n<li>Contact multiplication for PLC outputs<\/li>\n<li>Control circuits and interlocking<\/li>\n<li>Signalling and auxiliary functions on 3RT2 contactors<\/li>\n<li>Replacement of a worn relay or block<\/li>\n<\/ul>\n<h3>Compatibility and replacement<\/h3>\n<p>Check the coil voltage (for contactor relays) or the contactor size (for auxiliary blocks) against the old part before ordering.<\/p>\n<h3>Before you replace it<\/h3>\n<ul>\n<li>Look for signs of overvoltage, water or heat damage in the cabinet so the new part does not fail for the same reason.<\/li>\n<li>Check the supply voltage and wiring of the old unit before installing the new one.<\/li>\n<li>Back up the program and parameters from the old device if it still runs.<\/li>\n<\/ul>\n<h3>Frequently asked questions<\/h3>\n<h4>Does it fit 3RT2 contactors?<\/h4>\n<p>3RH29 auxiliary switch blocks fit 3RT2 contactors of the sizes listed by Siemens in the data sheet.<\/p>\n<h4>What contacts does it have?<\/h4>\n<p>See the contact arrangement in the Siemens title and table above.<\/p>\n<h4>Can I get a datasheet?<\/h4>\n<p>The official manufacturer datasheet is the source of the technical data above; we can send the PDF with the quotation on request.<\/p>\n<h4>Can you help me identify the right replacement?<\/h4>\n<p>Yes. Send us a photo of the label of the old part, or its full order number, and we will confirm the exact match or the official successor before quoting.<\/p>\n<h4>How fast can you deliver, and is there a warranty?<\/h4>\n<p>Air shipping usually takes 5 to 7 days once the part is ready, to almost any country. Each part is new and original with a 1-year warranty. Message us on WhatsApp with the order number for a quotation.<\/p>\n<h3>Ordering tips<\/h3>\n<p>Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.<\/p>\n<p>Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (<a href=\"https:\/\/www.rendatsp.com\/ar\/shipping-payment-warranty\/\">shipping, payment and warranty<\/a>). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.<\/p>","protected":false},"excerpt":{"rendered":"<p>Genuine Siemens 3RH2122-1BB40: contactor relay, 2 NO + 2 NC, 24 V DC, screw terminal, frame size S00. New original Siemens, supplied by RendatSP with worldwide shipping.<\/p>","protected":false},"featured_media":6298,"template":"","meta":{"_monsterinsights_skip_tracking":false,"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":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","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":""},"tablet":{"background-color":"","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":"","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":""}},"ast-content-background-meta":{"desktop":{"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":""},"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":""}}},"product_brand":[137],"product_cat":[43,358],"product_tag":[],"class_list":["post-6523","product","type-product","status-publish","has-post-thumbnail","product_brand-siemens","product_cat-siemens","product_cat-sirius-3rh2-control-relays","desktop-align-center","tablet-align-left","mobile-align-left","first","instock","taxable","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product\/6523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/media\/6298"}],"wp:attachment":[{"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/media?parent=6523"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product_brand?post=6523"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product_cat?post=6523"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.rendatsp.com\/ar\/wp-json\/wp\/v2\/product_tag?post=6523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}