{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2016-2PB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2016-2PB0","canonicalUrl":"https://aoctrl.com/siemens/3RB2016-2PB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2016-2PB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2016-2PB0, CLASS 20E trip class, contactor mounting, screw terminals, 690 V max AC-3, IP20 front, ATEX Ex II (2) GD.","salesMarkdown":"It protects motors against overload and phase failure by monitoring current and tripping within the Class 20 time band. The auxiliary contact ratings — 2 A at 24 V, 4 A at 120 V, 3 A at 230 V — tell you the switching capacity of the internal N/O and N/C contacts used in the control circuit; these are what the PLC or safety relay sees. The 0.05 W power dissipation in hot operating state (0.02 W per pole) is low enough that no special derating is needed in a crowded enclosure, but it adds up if you stack multiple relays on the same contactor. Mounts directly onto a contactor (contactor mounting) — no DIN rail required. That zero-clearance envelope means you can butt it against adjacent devices without worrying about heat buildup or arc flash, as long as the side gap is respected. Any mounting position is permitted, which simplifies panel layout. ## Environmental and EMC robustness Operates from -25 to +60 °C, stores and transports from -40 to +80 °C. 100 % relative humidity during operation — no condensation limits stated, so assume it can handle a damp cabinet. Shock resistance of 15g / 11 ms means it survives most vibration in industrial panels but not hammer-drill mounting. Surge voltage resistance rated at 6 kV, and burst immunity per IEC 61000-4-4 at 2 kV on power ports, 1 kV on signal ports (severity level 3). That's typical for industrial environments with contactor switching and motor drives nearby. ## Wiring and conductor range Main current circuit terminals accept solid conductors 0.5 to 4 mm² (2× 0.5 to 2.5 mm²), or fine-stranded with ferrule 0.5 to 2.5 mm² (2× 0.5 to 1.5 mm²). AWG equivalents for main contacts: 2× 18 to 14 AWG.","metaTitle":"Siemens 3RB2016-2PB0 SIRIUS solid-state overload relay, CLAS","metaDescription":"Siemens 3RB2016-2PB0 SIRIUS solid-state overload relay, CLASS 20E trip class, 690 V max, 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","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","with degree of pollution 3 at AC rated value":"690 V","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":"1 ... 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=387434&mlfb=3RB2016-2PB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2016-2PB0/alternatives.json"},"ai":{"faq":[{"question":"Will 3RB2016-2PB0 drop into a panel that was specified around 3RU2116-1FC1 without rewiring?","answer":"No, it will not. The 3RB2016-2PB0 is a solid-state overload relay (contactor-mounted, screw terminals), while the 3RU2116-1FC1 is a thermal overload relay with a different mounting footprint and wiring scheme. The two are not mechanically interchangeable; you would need to rewire the main circuit and control contacts. Check the contactor compatibility for the 3RB2 series."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2016-2PB0","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/3RB2016-2PB0 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}}