{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2283-4AC1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2283-4AC1","canonicalUrl":"https://aoctrl.com/siemens/3RB2283-4AC1","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2283-4AC1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RB2283-4AC1 overload relay, 3 poles, 630 A switching current, adjustable trip CLASS 5, 10, 20 and 30, IP20, stand-alone installation, ATEX Ex II (2) GD.","salesMarkdown":"## Overview The 3RB2283-4AC1 is a Siemens overload relay with 3 poles, rated for a switching current of 630 A and offering adjustable trip classes 5, 10, 20 and 30. It is housed in an IP20 enclosure for stand-alone installation and carries ATEX Ex II (2) GD certification for use in potentially explosive atmospheres. This overload relay protects motors by monitoring current and tripping on overload. The adjustable trip class — selectable between CLASS 5, 10, 20 and 30 — lets the user match the relay's thermal response to the motor's starting characteristics: a CLASS 10 setting suits standard induction motors, while CLASS 20 or 30 accommodates longer acceleration times such as on high-inertia loads. ## Applications The 3RB2283-4AC1 is used in motor control centres, pump and fan drives, conveyor systems, and other industrial machinery where three-phase motor protection is required. Its adjustable trip class makes it suitable for both standard and high-inertia loads, and the ATEX certification extends its use to hazardous-area installations such as chemical processing, oil and gas, and grain handling.","metaTitle":"Siemens 3RB2283-4AC1 Overload Relay, 3 Poles, 630 A, IP20","metaDescription":"Siemens 3RB2283-4AC1 overload relay: 3 poles, 630 A switching current, adjustable CLASS 5-30, IP20, ATEX Ex II (2) GD, RoHS compliant since 28-05-09.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Overload Relays"],"specifications":{"Depth":"95 mm","Width":"45 mm","Height":"111 mm","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","Per Pole":"0.17 W","at 110 V":"0.3 A","at 120 V":"6 A","at 125 V":"0.3 A","at 220 V":"0.2 A","at 230 V":"3 A","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 5, 10, 20 and 30 adjustable","At The Side":"6 mm","During Storage":"-40 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"stand-alone installation","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"solid-state overload relay","at 50 Hz rated value":"24 ... 240 V","at 60 Hz rated value":"24 ... 240 V","Size Of Overload Relay":"S00 ... S12","Substance Prohibitance (Date)":"05/28/2009","Operational Current Rated Value":"630 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"4 kV","for AWG cables for auxiliary contacts":"2x (24 ... 16)","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","Size Of Contactor Can Be Combined Company-Specific":"S00 ... S12","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 6 A","insulation voltage with degree of pollution 3 at AC rated value":"300 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","power loss [W] for rated value of the current at AC in hot operating state":"0.5 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.3 ... 630 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$151.13","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/d5afccf624e09c3eeadcf6257d72e4a1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=352747&mlfb=3RB2283-4AC1"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2283-4AC1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RB2283-4AC1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:41:02.429Z","lastPublished":"2026-07-20T14:41:02.429Z","indexable":true}}