{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2016-2SB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2016-2SB0","canonicalUrl":"https://aoctrl.com/siemens/3RB2016-2SB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2016-2SB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2016-2SB0, Class 20E, 3-pole, screw-type terminals, 45 mm wide, 64 mm high, 73 mm deep, ATEX Ex II (2) GD.","salesMarkdown":"The Siemens 3RB2016-2SB0 is a SIRIUS solid-state overload relay for three-phase motor protection. The solid-state sensing eliminates the bimetal drift you get with thermal relays, so the trip point stays repeatable across ambient swings from -25 to +60 °C. Mounts directly onto a contactor — the fastening method is contactor mounting, so it clips onto the SIRIUS 3RT contactor range without extra brackets. 45 mm wide, 64 mm high, 73 mm deep; the zero-clearance spacing (0 mm upwards, forwards, backwards, downwards) means you can pack relays side-by-side without derating for heat buildup. Screw-type terminals on both main and auxiliary circuits; main terminals accept solid wire 0.5...4 mm² (or 2× 0.5...2.5 mm²), auxiliary accept 2× 20...14 AWG. Side clearance of 6 mm is the only gap needed. ## Electrical ratings and environment Auxiliary contact ratings cover a wide control-voltage range: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V AC, plus DC ratings of 0.55 A at 60 V, 0.3 A at 110/125 V, and 0.11 A at 220 V. The relay is ATEX certified (PTB 06 ATEX 3001 Ex II (2) GD) for use in potentially explosive atmospheres — the (2) GD means it's associated apparatus for Group II gas and dust zones. Surge withstand is 6 kV; burst immunity at 2 kV on power ports, 1 kV on signal ports (severity level 3 per IEC 61000-4-4). Shock rated at 15g / 11 ms. Operating humidity up to 100% RH.","metaTitle":"Siemens 3RB2016-2SB0 SIRIUS Solid-State Overload Relay, Clas","metaDescription":"Siemens 3RB2016-2SB0 SIRIUS solid-state overload relay, Class 20E, 3-pole, screw terminals, ATEX Ex II (2) GD, 73 mm depth. Available to order — request quote.","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 20E","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=126319&mlfb=3RB2016-2SB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2016-2SB0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RB2016-2SB0 and how do I get a price?","answer":"The part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 3RB2016-2SB0?","answer":"The depth is 73 mm."},{"question":"What wire sizes does the 3RB2016-2SB0 accept?","answer":"Main circuit screw terminals accept solid wire 0.5...4 mm² (or 2× 0.5...2.5 mm²); auxiliary terminals accept 2× 20...14 AWG."},{"question":"What compliance documentation does Siemens provide for 3RB2016-2SB0?","answer":"The relay carries ATEX certification PTB 06 ATEX 3001 Ex II (2) GD. It also meets IEC 61000-4-4 burst immunity at severity level 3, and surge voltage resistance rated at 6 kV. Substance prohibitance date is listed as 01.07.2006, indicating RoHS compliance from that date."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2016-2SB0","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/3RB2016-2SB0 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}}