{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2016-1SB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2016-1SB0","canonicalUrl":"https://aoctrl.com/siemens/3RB2016-1SB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2016-1SB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2016-1SB0, CLASS 10E, 3-pole, screw-type terminals, ATEX Ex II (2) GD.","salesMarkdown":"The Siemens 3RB2016-1SB0 is a SIRIUS solid-state overload relay for three-phase motor circuits, protecting against overload and phase imbalance by monitoring motor current and tripping within CLASS 10E response time. It mounts directly onto a contactor via the contactor mounting fastening method, saving panel space and wiring — no separate DIN-rail footprint needed. Rated for continuous operation from -25 to +60 °C and storage from -40 to +80 °C, with 100 % relative humidity tolerance, so it handles unconditioned enclosures and washdown areas without derating concerns. The auxiliary contact ratings cover both AC and DC control circuits: 4 A at 120 V AC and 2 A at 24 V DC, so it can switch PLC inputs or contactor coils directly without an interposing relay. Screw-type terminals accept solid conductors from 0.5 to 4 mm² (or 2× 0.5 to 2.5 mm²) and AWG 18 to 14 for main circuits, matching common motor lead sizes in fractional to small integral horsepower ranges. Surge voltage withstand of 6 kV and burst immunity at severity level 3 (2 kV power ports, 1 kV signal ports) per IEC 61000-4-4 means it holds up in industrial environments with contactor switching and VFD noise. ## Where it goes and compliance The ATEX approval PTB 06 ATEX 3001 Ex II (2) GD allows installation in Zone 2 gas and Zone 22 dust hazardous areas when paired with an appropriately rated contactor — common in chemical, grain, and pharmaceutical lines. Shock rated to 15g for 11 ms per the spec, so it survives transport vibration and occasional mechanical impacts on the panel door or machine frame.","metaTitle":"Siemens 3RB2016-1SB0 SIRIUS solid-state overload relay, CLAS","metaDescription":"Siemens SIRIUS 3RB2016-1SB0 solid-state overload relay, CLASS 10E trip, ATEX Ex II (2) GD, 3-pole, screw terminals, 45mm wide. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"73 mm","Solid":"0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²)","Width":"45 mm","Height":"64 mm","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","Per Pole":"0.02 W","at 110 V":"0.3 A","at 120 V":"4 A","at 125 V":"0.3 A","at 220 V":"0.11 A","at 230 V":"3 A","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 10E","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":"Contactor mounting","Shock Resistance":"15g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Type Of Protection":"PTB 06 ATEX 3001 Ex II (2) GD","Product Designation":"solid-state overload relay","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (18 ... 14)","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"100 %","due to burst acc. to IEC 61000-4-4":"2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3","reference code acc. to IEC 81346-2":"F","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","Finely Stranded With Core End Processing":"0.5 ... 2.5 mm², 2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","electrostatic discharge acc. to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","operating voltage at AC-3 rated value maximum":"690 V","field-based interference acc. to IEC 61000-4-3":"10 V/m","Size Of Contactor Can Be Combined Company-Specific":"S00","due to conductor-earth surge acc. to IEC 61000-4-5":"2 kV (line to earth) corresponds to degree of severity 3","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":"690 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":"0.05 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"3 ... 12 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=371200&mlfb=3RB2016-1SB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2016-1SB0/alternatives.json"},"ai":{"faq":[{"question":"What are the wire size limits for the main terminals?","answer":"The screw-type main terminals accept solid conductors from 0.5 to 4 mm² (single wire) or 2× 0.5 to 2.5 mm² (two wires), and AWG 18 to 14 for two-wire connections."},{"question":"What ATEX rating does this overload relay carry?","answer":"It carries PTB 06 ATEX 3001 Ex II (2) GD, suitable for installation in Zone 2 gas and Zone 22 dust hazardous areas when paired with an appropriate contactor."},{"question":"Can this relay handle DC control circuits?","answer":"Yes, the auxiliary contacts are rated for DC switching: 2 A at 24 V, 0.55 A at 60 V, 0.3 A at 125 V, and 0.11 A at 220 V, covering common PLC and relay coil voltages."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2016-1SB0","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/3RB2016-1SB0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}