{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2116-1BB1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2116-1BB1","canonicalUrl":"https://aoctrl.com/siemens/3RU2116-1BB1","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2116-1BB1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, 3RU2116-1BB1, CLASS 10, S00 frame, 690 V rated, screw terminals.","salesMarkdown":"Rated for 690 V, it carries a 2 A continuous current at 24 V and 3 A at 120 V on the auxiliary contacts, which is the signal path that tells the upstream contactor to drop out. The per-pole power dissipation is 1.9 W, so three poles running at full load add about 5.7 W of heat inside the enclosure — factor that into your panel thermal budget if it's a sealed cabinet. The screw-type terminals accept 2× (0.5 to 1.5 mm²) or 2× (0.75 to 2.5 mm²) solid or stranded wire, so you can daisy-chain the motor leads without a separate terminal block. ## Integration & Wiring The S00 frame size — 89 mm high, 45 mm wide, 80 mm deep — fits the standard Siemens contactor footprint for the 3RT2 series. The auxiliary switch is integrated, so there is no separate add-on module to order for the N/C trip-indication contact. The screwdriver tip required is Pozidriv PZ 2 with a shaft diameter of 5 to 6 mm. Temperature compensation is active from -40 to +60 °C, meaning the trip curve stays accurate across that ambient range. The note on the component line reads \"for message 'Tripped'\" — that is the text the integrated auxiliary contact sends to the PLC or indicator when the relay has operated. ## Ratings & Duty The relay is rated for AC-3e duty up to 690 V, which covers switching of squirrel-cage motors. At 400 V it protects a 0.75 kW motor; at 690 V that rises to 1.1 kW. The auxiliary contact ratings span the common control voltages: 2 A at 24 V, 3 A at 120 V, 2 A at 230 V, 1 A at 400 V, and 0.75 A at 690 V. The 0.3 A at 60 V and 0.22 A at both 110 V and 125 V cover the less common DC or low-voltage AC control circuits. The MTTF with high demand rate is listed at 2 280 years — that figure comes from the IEC 62061 / ISO 13849 reliability calculation for the safety function. It means the probability of dangerous failure per hour is low enough for most machine-guarding applications, though the relay itself is not a safety device; it is a thermal overload relay with a trip-indication contact.","metaTitle":"Siemens 3RU2116-1BB1 SIRIUS Thermal Overload Relay, CLASS 10","metaDescription":"Siemens 3RU2116-1BB1 SIRIUS thermal overload relay, CLASS 10 trip, S00 frame, 690 V rated. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"Tripped\"","Depth":"80 mm","Width":"45 mm","title":"3RU2116-1BB1","Height":"89 mm","at 24 V":"2 A","at 60 V":"0.3 A","Per Pole":"1.9 W","at 110 V":"0.22 A","at 120 V":"3 A","at 125 V":"0.22 A","at 220 V":"0.11 A","at 230 V":"2 A","at 400 V":"1 A","at 690 V":"0.75 A","Trip Class":"CLASS 10","Rated Value":"690 V","description":"Overload relay 1.4...2.0 A Thermal For motor protection Size S00, Class 10 Stand-alone installation Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-40 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"stand-alone installation","For Main Contacts":"M3","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"thermal overload relay","at 400 V rated value":"0.75 kW","at 480 V rated value":"2 A","at 500 V rated value":"0.75 kW","at 600 V rated value":"2 A","at 690 V rated value":"1.1 kW","Size Of Overload Relay":"S00","For Main Current Circuit":"screw-type terminals","Temperature Compensation":"-40 ... +60 °C","MTTF with high demand rate":"2 280 a","Design Of Screwdriver Shaft":"Diameter 5 ... 6 mm","Size Of The Screwdriver Tip":"Pozidriv PZ 2","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"2 A","for AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","For Auxiliary And Control Circuit":"screw-type terminals","Between Main And Auxiliary Circuit":"440 V","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","Of The Auxiliary And Control Contacts":"M3","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Between Auxiliary And Auxiliary Circuit":"440 V","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","For Main Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"8g / 11 ms","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","operational current at AC-3e at 400 V rated value":"2 A","Size Of Contactor Can Be Combined Company-Specific":"S00","contact rating of auxiliary contacts according to UL":"B600 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 6 A, quick: 10 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","power loss [W] for rated value of the current at AC in hot operating state":"5.7 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"1.4 ... 2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$34.29","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/006c6edb28cf2b8fa890389a4b66e1ef.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=461095&mlfb=3RU2116-1BB1"},"ai":{"faq":[{"question":"What is the trip class of 3RU2116-1BB1?","answer":"It is CLASS 10, meaning it trips within 10 seconds at 7.2× the full-load current setting."},{"question":"How do I get current pricing and availability for 3RU2116-1BB1?","answer":"This part is sourced to order against an RFQ through independent distribution; current pricing and availability are confirmed at quote time."},{"question":"What does the note 'for message Tripped' mean on 3RU2116-1BB1?","answer":"It is the text that the integrated auxiliary contact sends to a PLC or indicator when the overload relay has operated."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2116-1BB1","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/3RU2116-1BB1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}