{"product_id":"siemens-3rh2911-1ha22-sirius-auxiliary-switch-block-2no-2nc","title":"Siemens 3RH2911-1HA22 | SIRIUS Auxiliary Switch Block | 2NO + 2NC Front Mount | Screw Terminal Contactor Block | Brand New Original","description":"\u003cdiv style=\"width: 100%; max-width: 850px; margin: 20px auto; font-family: 'Inter', system-ui, sans-serif; color: #333; line-height: 1.6; border: 3px solid #000000; border-radius: 12px; overflow: hidden; background: #ffffff; box-shadow: 0 4px 15px rgba(0,0,0,0.1);\"\u003e\n\n    \u003cdiv style=\"background: #009999; padding: 25px 30px; color: #ffffff;\"\u003e\n        \u003cdiv style=\"font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 5px; opacity: 0.95; color: #ffffff;\"\u003eLow-Voltage Control Controls | SEO Optimized\u003c\/div\u003e\n        \u003ch1 style=\"margin: 0; font-size: clamp(20px, 5vw, 26px); font-weight: 800; color: #ffffff;\"\u003eSiemens 3RH2911-1HA22 Switch Block\u003c\/h1\u003e\n    \u003c\/div\u003e\n\n    \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; border: 1px solid #009999;\"\u003e\n        \u003ctr style=\"background: #e6f5f5;\"\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 700; width: 40%;\"\u003eOrder Code (Model)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 800;\"\u003e3RH2911-1HA22\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; color: #666;\"\u003eProduct Portfolio\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 700;\"\u003eSIRIUS Modular Electrical Control Infrastructure\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr style=\"background: #e6f5f5;\"\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; color: #666;\"\u003eContact Layout Configuration\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 800;\"\u003e2 Normally Open (2NO) + 2 Normally Closed (2NC)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; color: #666;\"\u003eMounting Implementation\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 700;\"\u003eFront Plate Snap-On Clip Placement (Toolless Mounting)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr style=\"background: #e6f5f5;\"\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; color: #666;\"\u003ePhysical Terminal Interface\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 800;\"\u003eHeavy-Duty Rigid Screw Clamp Connections Matrix\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; color: #666;\"\u003eHardware Compatibility\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 700;\"\u003eSIRIUS 3RT2 Contactors \u0026amp; 3RH2 Relays (Size S00 to S3)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr style=\"background: #e6f5f5;\"\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; color: #666;\"\u003eInsulation Rated Voltage\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 800;\"\u003e690 V AC Rated Circuit Boundary Standards\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; color: #666;\"\u003eMechanical Operation Life\u003c\/td\u003e\n\u003ctd style=\"padding: 12px 15px; border: 1px solid #009999; font-weight: 700;\"\u003eUp to 10 Million Reliable Operational Switching Cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/table\u003e\n\n    \u003cdiv style=\"padding: 30px;\"\u003e\n        \u003ch2 style=\"font-size: 18px; font-weight: 800; color: #333; margin-top: 0;\"\u003ePerformance Overview\u003c\/h2\u003e\n        \u003cp style=\"font-size: 14px; color: #555; line-height: 1.8;\"\u003e\n            The Siemens 3RH2911-1HA22 is an industrial-tier premium standard auxiliary switch extension block meticulously engineered within the flagship SIRIUS low-voltage modular control hardware network. Purpose-built to seamlessly expand dense auxiliary terminal signaling loops and logical electrical locks for primary power contactors, this highly durable add-on component manages 2NO and 2NC contact points fluidly. The optimized frontal latch structure enables quick, direct snap integration onto standard 3RT2 power contactors or 3RH2 control relays across multiple frame boundaries without taking up extra lateral panel tracks. Complete with premium screw clamp wiring terminal channels and high-grade electrical contact plating parameters, it sustains critical plant grid distributions with absolute operational consistency.\n        \u003c\/p\u003e\n\n        \u003cdiv style=\"background: #fdfdfd; border: 2px solid #eee; border-radius: 12px; padding: 25px; border-left: 10px solid #009999; margin-top: 20px;\"\u003e\n            \u003ch3 style=\"margin-top: 0; font-size: 16px; color: #333;\"\u003e📋 Critical Application Check\u003c\/h3\u003e\n            \u003cul style=\"font-size: 14px; color: #555; padding-left: 20px;\"\u003e\n                \u003cli\u003e\n\u003cstrong\u003eIndustry:\u003c\/strong\u003e High-Density Motor Control Enclosures (MCC), Industrial Water Treatment Switcheboards, Heavy Automation Assembly Line Interlocking, Multi-Route Indicator Feedbacks.\u003c\/li\u003e\n                \u003cli\u003e\n\u003cstrong\u003eFront-Mount Space Efficiency:\u003c\/strong\u003e Direct frontal placement overrides the need for side expansion blocks, conserving essential horizontal spacing inside dense electrical distribution cabinet grids.\u003c\/li\u003e\n                \u003cli\u003e\n\u003cstrong\u003eGas-Tight Screw Clamp Advantage:\u003c\/strong\u003e Robust mechanical screw channels lock heavy wiring cores reliably, resisting intense machinery resonance patterns and thermal expansions seamlessly.\u003c\/li\u003e\n            \u003c\/ul\u003e\n\n            \u003ch4 style=\"font-size: 14px; color: #333; margin-top: 20px; font-weight: 800;\"\u003eSiemens SIRIUS Control Systems Integration:\u003c\/h4\u003e\n            \u003cul style=\"font-size: 14px; color: #555; padding-left: 20px;\"\u003e\n                \u003cli\u003eSIRIUS Auxiliary Contacts Group: \n                    \u003ca href=\"\/ru\/collections\/siemens\" style=\"color: #009999; text-decoration: underline; font-weight: 700;\"\u003eSiemens 3RH29 Auxiliary Blocks Collection\u003c\/a\u003e\n                \u003c\/li\u003e\n                \u003cli\u003ePrecision Plant Hardware Networks: \n                    \u003ca href=\"\/ru\/collections\/siemens\" style=\"color: #009999; text-decoration: underline; font-weight: 700;\"\u003eSiemens High-Efficiency Industrial Switching Elements \u0026amp; Components\u003c\/a\u003e\n                \u003c\/li\u003e\n            \u003c\/ul\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e","brand":"YingZhou Automatization","offers":[{"title":"3RH2911-1HA22","offer_id":58065387094319,"sku":"3RH2911-1HA22","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0851\/9473\/5919\/files\/Siemens-3RH2911-1HA22-SIRIUS-Auxiliary-Switch-Block-2NO-2NC-Front-Mount-Screw-Terminal-Contactor-Block-Brand-New-Original.jpg?v=1781186782","url":"https:\/\/szyingzhou.com\/ru\/products\/siemens-3rh2911-1ha22-sirius-auxiliary-switch-block-2no-2nc","provider":"YingZhou Automatization","version":"1.0","type":"link"}