{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2016-2RB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2016-2RB0","canonicalUrl":"https://aoctrl.com/siemens/3RB2016-2RB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2016-2RB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2016-2RB0, CLASS 20E, contactor mounting, ATEX Ex II (2) GD, IP20 front, screw terminals.","salesMarkdown":"It provides motor overload and phase-loss protection for three-phase AC motors up to 690 V AC-3 rated maximum. The ATEX certification (PTB 06 ATEX 3001 Ex II (2) GD) permits use in gas and dust hazardous areas where the relay itself is outside the zone but protects motors inside it. Rated for continuous operation from -25 to +60 °C, it handles shock loads up to 15g / 11 ms and carries a surge voltage resistance of 6 kV. The IP20 front face suits enclosed panel mounting; the screw-type main circuit terminals accept 0.5 to 4 mm² (2x 0.5 to 2.5 mm²) solid or stranded conductors. Mounts directly onto a contactor via the contactor mounting interface — no DIN rail required. The 45 mm width and 64 mm height match the footprint of SIRIUS contactors in the same frame size. Auxiliary contact ratings are provided for multiple control voltages: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, and lower ratings at 60 V, 110 V, 125 V, and 220 V. EMC immunity includes 2 kV burst on power ports and 1 kV on signal ports per IEC 61000-4-4 severity level 3. Pollution degree 3 rated at 690 V, meaning it withstands conductive pollution in industrial environments. Storage and transport temperature range is -40 to +80 °C; relative humidity tolerance is 100 % during operation.","metaTitle":"Siemens 3RB2016-2RB0 SIRIUS Solid-State Overload Relay, CLAS","metaDescription":"Siemens 3RB2016-2RB0 SIRIUS solid-state overload relay, CLASS 20E, contactor mounting, ATEX Ex II (2) GD, IP20 front. Sourced to order against RFQ.","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","Maximum":"2 000 m","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","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","On The Front":"IP20","Mounting type":"Contactor mounting","During Storage":"-40 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","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 Auxiliary Contacts":"0","For Main Current Circuit":"screw-type terminals","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"0.05 W","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","at AWG conductors for main contacts":"2x (18 ... 14)","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 81346-2":"F","at AC in hot operating state per pole":"0.02 W","With Degree Of Pollution 3 Rated Value":"690 V","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","at AWG conductors for auxiliary contacts":"2x (20 ... 14)","For Auxiliary And Control Current Circuit":"screw-type terminals","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","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","Removable Terminal For Auxiliary And Control Circuit":"Yes","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 6 A","Adjustable pick-up 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=300214&mlfb=3RB2016-2RB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2016-2RB0/alternatives.json"},"ai":{"faq":[{"question":"What is the trip class of the 3RB2016-2RB0?","answer":"The trip class is CLASS 20E, which means it will trip within 20 seconds at 7.2 times the current setting — suitable for standard induction motors with moderate starting times."},{"question":"What certifications does the 3RB2016-2RB0 carry?","answer":"It carries ATEX certification PTB 06 ATEX 3001 Ex II (2) GD for use in gas and dust hazardous areas, plus IEC 61000-4-4 EMC immunity compliance."},{"question":"How do I get pricing and availability for the 3RB2016-2RB0?","answer":"This part is sourced to order against an RFQ through independent distribution. Submit an RFQ to receive current pricing and availability confirmed at quote time."},{"question":"What is the depth of the 3RB2016-2RB0?","answer":"The depth is 73 mm, with a width of 45 mm and height of 64 mm."},{"question":"What wire sizes does the 3RB2016-2RB0 accept?","answer":"The screw-type main circuit terminals accept solid conductors from 0.5 to 4 mm², or 2x 0.5 to 2.5 mm². AWG equivalents are 2x 18 to 14 AWG for the main contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2016-2RB0","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/3RB2016-2RB0 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}}