{"product_id":"siemens-3rb2123-4pb0","title":"3RB2123-4PB0","description":"\u003ch2\u003eBuy genuine Siemens 3RB2123-4PB0 online\u003c\/h2\u003e\n\u003cp\u003eThe Siemens 3RB2123-4PB0 is a factory-grade electronic overload relay designed for reliable motor protection in industrial automation systems. This solid state overload relay offers an adjustable current range from 1 to 4 amps, making it suitable for various motor sizes. It features compact Size S0 housing and is class 5 to 30 compliant. The relay is engineered for easy DIN rail mounting and integrates seamlessly with Siemens contactors. With low power loss and screw terminal connections for both main and auxiliary circuits, the 3RB2123-4PB0 ensures dependable motor safeguarding against overloads, increasing system uptime and reducing downtime risks. Ideal for process control and production line systems, it supports stable and precise operation under varied electrical loads.\u003c\/p\u003e\n\u003ch2\u003eKey Features of Siemens 3RB2123-4PB0\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAdjustable overload current range: 1 to 4 A\u003c\/li\u003e\n\u003cli\u003eCompact Size S0 housing for space-saving panel design\u003c\/li\u003e\n\u003cli\u003eClass 5 to 30 motor protection to meet diverse application needs\u003c\/li\u003e\n\u003cli\u003eDIN rail mounting for straightforward installation\u003c\/li\u003e\n\u003cli\u003eDurable screw terminal connections for main and auxiliary circuits\u003c\/li\u003e\n\u003cli\u003eLow typical power loss of approximately 0.05 W enhances energy efficiency\u003c\/li\u003e\n\u003cli\u003eCompatibility with Siemens contactors for modular system setup\u003c\/li\u003e\n\u003cli\u003eElectronic solid-state design improves precision and reliability over thermal relays\u003c\/li\u003e\n\u003cli\u003eWide supply voltage range supporting 24 to 240 V AC\/DC operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specs of 3RB2123-4PB0\u003c\/h2\u003e\n\u003cp\u003eExplore Siemens 3RB2123-4PB0 technical data for detailed parameters.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverload Current Range\u003c\/td\u003e\n\u003ctd\u003e1 to 4 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eS0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClass\u003c\/td\u003e\n\u003ctd\u003e5 to 30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eDIN rail \/ Contactor mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Circuit Connection\u003c\/td\u003e\n\u003ctd\u003eScrew terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAuxiliary Circuit Connection\u003c\/td\u003e\n\u003ctd\u003eScrew terminal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical Power Loss\u003c\/td\u003e\n\u003ctd\u003e0.05 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage\u003c\/td\u003e\n\u003ctd\u003e24–240 V AC\/DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\n\u003cp\u003eThis Siemens 3RB2123-4PB0 is commonly used in industrial automation worldwide. It serves as motor protection in factory control panels, process control systems, and machine automation setups. Its reliable overload detection safeguards motors against overheating or damage during unexpected load spikes, helping maintain continuous operations in manufacturing lines, conveyor systems, and packaging equipment. The relay’s compact size and flexible mounting options make it ideal for retrofitting or new installations demanding precise motor overload control.\u003c\/p\u003e\n\u003ch2\u003ePrice \u0026amp; Availability\u003c\/h2\u003e\n\u003cp\u003eCheck Siemens 3RB2123-4PB0 pricing online through LeadTime.ca for fast worldwide dispatch.\u003c\/p\u003e\n\u003ch2\u003eWhy Order from LeadTime.ca\u003c\/h2\u003e\n\u003cp\u003eAll product on LeadTime.ca is genuine original OEM, supplied by trusted distributors, and available for worldwide shipping. Order now for worldwide delivery.\u003c\/p\u003e\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/siemens\"\u003eBrowse Siemens PLCs, Drives \u0026amp; Automation Parts\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-plc-programming-basics\"\u003eSiemens PLC programming basics guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-tia-portal-io-errors\"\u003eHow to troubleshoot Siemens TIA Portal IO errors\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/siemens-drive-parameter-setup\"\u003eBest practices for Siemens drive parameter setup\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":47912587657515,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/3RB2123-4PB0.png?v=1707390031","url":"https:\/\/leadtime.ca\/products\/siemens-3rb2123-4pb0","provider":"LEADTIME","version":"1.0","type":"link"}