{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2016-1RB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2016-1RB0","canonicalUrl":"https://aoctrl.com/siemens/3RB2016-1RB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2016-1RB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2016-1RB0, CLASS 10E, 3-pole, screw-type terminals, ATEX Ex II (2) GD, 73 mm depth.","salesMarkdown":"The Siemens 3RB2016-1RB0 is a SIRIUS solid-state overload relay — a 3-pole electronic protector for motor circuits, not a bimetallic thermal unit. It carries ATEX approval PTB 06 ATEX 3001 Ex II (2) GD, so it is certified for use in potentially explosive atmospheres — Zone 2 gas and Zone 22 dust — when paired with an appropriate motor and enclosure. This is not a general-purpose relay; the ATEX marking is the headline spec that governs where it can be installed. Mounts directly onto a contactor — the fastening method is contactor mounting, not DIN rail. That means it sits on top of a matching SIRIUS contactor (e.g., 3RT10 series) as a single assembly. No separate bracket or rail footprint needed. Main circuit terminals accept solid wire from 0.5 to 4 mm², or 2× (0.5 to 2.5 mm²) — fine for motor leads up to about 4 mm² per phase. Auxiliary terminals take 2× (0.5 to 1.5 mm²) finely stranded with ferrule. The depth is 73 mm, width 45 mm, height 64 mm. No clearance needed upwards, forwards, or backwards — zero mm on all three — so it fits tight against the contactor face. Side clearance is 6 mm. ## Electrical ratings and environment The auxiliary contact ratings are given at multiple voltages: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, and lower values for DC (0.55 A at 60 V, 0.3 A at 125 V, 0.11 A at 220 V). These are the switching capacities for the built-in auxiliary contacts — useful for signaling the PLC or safety circuit. Per-pole power dissipation is 0.02 W, negligible for panel heat budgeting. It withstands 100 % relative humidity during operation and 15g / 11 ms shock. Surge voltage resistance is 6 kV, and burst immunity meets IEC 61000-4-4 severity 3 (2 kV on power ports, 1 kV on signal ports). Mounting position is any.","metaTitle":"Siemens 3RB2016-1RB0 SIRIUS solid-state overload relay, CLAS","metaDescription":"Siemens 3RB2016-1RB0 SIRIUS solid-state overload relay, CLASS 10E trip, ATEX Ex II (2) GD, 3-pole, screw terminals, 73 mm depth. Active production. Quoted to order.","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":"0.1 ... 0.4 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=457013&mlfb=3RB2016-1RB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2016-1RB0/alternatives.json"},"ai":{"faq":[{"question":"What is the trip class of 3RB2016-1RB0?","answer":"CLASS 10E — it clears an overload within 10 seconds at 7.2× the set current, matching standard induction motor starts."},{"question":"Does 3RB2016-1RB0 have ATEX approval?","answer":"Yes, it carries PTB 06 ATEX 3001 Ex II (2) GD, certifying it for Zone 2 gas and Zone 22 dust explosive atmospheres."},{"question":"Where can I buy 3RB2016-1RB0 and how is it quoted?","answer":"It is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What wire sizes does 3RB2016-1RB0 accept on the main terminals?","answer":"Solid wire from 0.5 to 4 mm², or 2× (0.5 to 2.5 mm²). Auxiliary terminals accept 2× (0.5 to 1.5 mm²) finely stranded with ferrule."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2016-1RB0","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/3RB2016-1RB0 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}}