{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2016-1PB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2016-1PB0","canonicalUrl":"https://aoctrl.com/siemens/3RB2016-1PB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2016-1PB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB2016-1PB0, solid-state overload relay, 3-pole, Class 10E, screw-type terminals, 45 mm width, ATEX Ex II (2) GD.","salesMarkdown":"The Siemens 3RB2016-1PB0 is a SIRIUS solid-state overload relay — a Class 10E device for three-phase motor protection. It is not a bimetallic thermal relay; the solid-state sensing avoids drift from ambient heating and gives a tighter, repeatable trip curve. The relay mounts directly onto a contactor (contactor mounting), saving DIN-rail space. At 45 mm wide, 64 mm tall, and 73 mm deep, it fits a standard contactor footprint. The screw-type terminals accept solid conductors from 0.5 to 4 mm² (or 2× 0.5 to 2.5 mm²), and finely stranded wire with ferrules from 0.5 to 2.5 mm² (2× 0.5 to 1.5 mm²). AWG equivalents are 2× 18 to 14 for the main circuit and 2× 20 to 14 for the auxiliary contacts. The auxiliary contact ratings cover common control voltages: 2 A at 24 V, 4 A at 120 V, and 3 A at 230 V. These are the make/break capacities for the N/O and N/C signaling contacts that feed the PLC or safety circuit. The relay has zero N/O and N/C auxiliary contacts built in — the signaling comes from an external contact block or the contactor's own auxiliaries. This overload relay is designed for motor control centers and individual motor starters in industrial environments — anywhere a three-phase motor needs protection against overcurrent and phase loss. The ATEX approval (PTB 06 ATEX 3001 Ex II (2) GD) means it can be installed in the safe-area control panel feeding motors in Zone 1 or Zone 2 gas or dust hazardous areas, provided the associated contactor and enclosure meet the installation rules. The shock resistance of 15g / 11 ms covers most industrial vibration from nearby presses or conveyors. Compliance documentation is in order: the part carries a substance prohibitance date of 01.07.2006, which aligns with RoHS compliance. The ATEX certificate (PTB 06 ATEX 3001) covers the Ex II (2) GD marking. EMC immunity is specified to IEC 61000-4-4 (burst) at severity level 3 — 2 kV on power ports, 1 kV on signal ports — and surge voltage resistance at 6 kV. These are the key compliance documents a sourcing or compliance engineer will need for the file. ## Integration notes The relay fastens directly onto the contactor — no DIN rail required for the overload itself. Clearance: 0 mm upwards, forwards, and backwards; 6 mm at the side. This tight stacking is typical for SIRIUS contactor assemblies in compact motor starter blocks. The 0.02 W power dissipation per pole is negligible for thermal budgeting inside the enclosure.","metaTitle":"Siemens 3RB2016-1PB0 SIRIUS solid-state overload relay, Clas","metaDescription":"Siemens 3RB2016-1PB0 SIRIUS solid-state overload relay, Class 10E trip, 3-pole, 45 mm wide, screw terminals, ATEX Ex II (2) GD, 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":"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=263417&mlfb=3RB2016-1PB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2016-1PB0/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does the 3RB2016-1PB0 carry?","answer":"RoHS compliance (substance prohibitance date 01.07.2006), ATEX Ex II (2) GD certificate PTB 06 ATEX 3001, EMC burst immunity per IEC 61000-4-4 severity level 3, and surge voltage resistance rated at 6 kV."},{"question":"What are the key dimensions and mounting requirements?","answer":"Width 45 mm, height 64 mm, depth 73 mm. Mounts directly onto a contactor (contactor mounting). Clearances: 0 mm upwards, forwards, and backwards; 6 mm at the side. Mounting position is any."},{"question":"What wire sizes does the 3RB2016-1PB0 accept?","answer":"Screw-type terminals accept solid 0.5 to 4 mm² (2× 0.5 to 2.5 mm²) and finely stranded with ferrules 0.5 to 2.5 mm² (2× 0.5 to 1.5 mm²). AWG equivalents: 2× 18 to 14 for main circuit, 2× 20 to 14 for auxiliary contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2016-1PB0","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/3RB2016-1PB0 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}}