{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2016-1NB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2016-1NB0","canonicalUrl":"https://aoctrl.com/siemens/3RB2016-1NB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2016-1NB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB2016-1NB0, solid-state overload relay, CLASS 10E, 3-pole, screw terminals, contactor mounting, ATEX Ex II (2) GD.","salesMarkdown":"The Siemens 3RB2016-1NB0 is a SIRIUS solid-state overload relay — a CLASS 10E trip curve device that protects three-phase motor circuits from sustained overcurrent without the thermal lag of a bimetal relay. It mounts directly onto a contactor (contactor mounting), saving DIN-rail space in the panel and keeping the power loop short. The relay carries ATEX Ex II (2) GD certification (PTB 06 ATEX 3001). The 45 mm width and 64 mm height keep the footprint compact; the 73 mm depth is the projection from the contactor face, so verify clearance to the enclosure door or adjacent devices. Screw-type terminals on both main and auxiliary circuits accept solid conductors from 0.5 to 4 mm² (2× 0.5 to 2.5 mm²) and finely stranded with ferrules from 0.5 to 2.5 mm² — standard panel wire sizes, no special crimps needed. ## Integration notes The relay withstands 15g shock for 11 ms — suitable for installation on machine frames or in mobile equipment, not just stationary panels. EMC immunity includes 2 kV burst on power ports and 1 kV on signal ports (severity level 3 per IEC 61000-4-4), plus 6 kV surge voltage resistance — adequate for industrial environments with motor starters and contactors switching inductive loads.","metaTitle":"Siemens 3RB2016-1NB0 SIRIUS solid-state overload relay, CLAS","metaDescription":"Siemens 3RB2016-1NB0 SIRIUS solid-state overload relay, CLASS 10E trip, 3-pole, contactor-mount, ATEX Ex II (2) GD, -25 to +60°C operating. Current production. Sourced 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":"0.32 ... 1.25 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=226313&mlfb=3RB2016-1NB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2016-1NB0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 3RB2016-1NB0?","answer":"The depth is 73 mm, measured from the mounting face of the contactor it attaches to."},{"question":"What wire sizes does the 3RB2016-1NB0 accept?","answer":"Solid conductors from 0.5 to 4 mm² (or 2× 0.5 to 2.5 mm²) and finely stranded with ferrules from 0.5 to 2.5 mm² (or 2× 0.5 to 1.5 mm²). AWG equivalents are 2× 18 to 14 for main contacts and 2× 20 to 14 for auxiliary contacts."},{"question":"What compliance documentation is available for the 3RB2016-1NB0?","answer":"The relay carries ATEX Ex II (2) GD certification (PTB 06 ATEX 3001). It also meets IEC 61000-4-4 burst immunity at severity level 3 and has a substance prohibition date of 01.07.2006, consistent with RoHS compliance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2016-1NB0","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/3RB2016-1NB0 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}}