{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU2116-0BB1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU2116-0BB1","canonicalUrl":"https://aoctrl.com/siemens/3RU2116-0BB1","factsUrl":"https://aoctrl.com/api/mcp/products/3RU2116-0BB1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RU2116-0BB1 thermal overload relay, Size S00, Trip Class 10, rated 690 V, with integrated auxiliary switch.","salesMarkdown":"The Siemens 3RU2116-0BB1 is a SIRIUS thermal overload relay in Size S00, Trip Class 10, rated 690 V. It protects a motor branch against sustained overcurrent by tracking the thermal load — when the internal bimetal strip trips, it opens the integrated auxiliary switch and sends a signal back to the contactor coil, dropping the motor off line. The \"for message Tripped\" note on the product means the auxiliary contact position changes on a trip event, so the PLC or annunciator sees a clean status change. It mounts stand-alone or directly onto a SIRIUS contactor of matching frame size, in any orientation, and the screw terminals accept 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded wire. ## Trip Class 10 — what it means for the motor start That is the standard for standard-duty induction motors — pumps, fans, compressors with normal acceleration times. If the motor has a heavy inertia load (centrifuge, crusher, long conveyor) that needs longer to start, you would step up to Class 20 or Class 30. For the 3RU2116-0BB1, the Class 10 curve is fixed; there is no field-selectable class. The temperature compensation range of -40 to +60 °C keeps the trip curve stable across the panel ambient, so the relay does not nuisance-trip on a hot day or fail to protect on a cold one. ## Physical fit — dimensions and mounting The relay measures 45 mm wide, 89 mm tall, and 80 mm deep. It mounts stand-alone — no contactor required underneath — but the typical installation is snapped onto a SIRIUS 3RT2 contactor of the same S00 frame size. The screw terminals for the main circuit use M3 screws; the screwdriver tip needed is Pozidriv PZ2 with a shaft diameter of 5 to 6 mm. The auxiliary switch is integrated into the relay body, so no separate side-mount block is needed for the trip/alarm signal. ## Switching ratings — what the auxiliary contacts can handle The integrated auxiliary switch is rated for a range of control voltages. At 24 V it carries 2 A; at 120 V it carries 3 A; at 230 V it carries 2 A; at 400 V it carries 1 A; at 690 V it carries 0.75 A. For DC control circuits, at 60 V it is rated 0.3 A, at 110 V and 125 V it is rated 0.22 A, and at 220 V it is rated 0.11 A. These are the maximum continuous currents the auxiliary contacts can make and break — useful for sizing the PLC input or relay coil load on the trip signal. The per-pole power dissipation is 1.6 W. The substance prohibitance date of 10/01/2009 indicates RoHS compliance (the part contains no restricted substances above the threshold as of that date). MTTF with high demand rate is 2,280 years — a reliability figure used for SIL calculations in safety circuits, though the relay itself is not a safety-rated device. No UL, CSA, or IEC certification numbers are listed in this record, but the SIRIUS family typically carries IEC/EN 60947-4-1 compliance; verify the specific markings on the nameplate for your jurisdiction.","metaTitle":"Siemens 3RU2116-0BB1 SIRIUS Thermal Overload Relay, Size S00","metaDescription":"Siemens 3RU2116-0BB1 SIRIUS thermal overload relay, Size S00, Trip Class 10, rated 690 V. Active production. Sourced to order. RFQ for lead time.","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","Height":"89 mm","at 24 V":"2 A","at 60 V":"0.3 A","Per Pole":"1.6 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","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":"0.06 kW","at 480 V rated value":"0.2 A","at 500 V rated value":"0.06 kW","at 600 V rated value":"0.2 A","at 690 V rated value":"0.09 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":"0.2 A","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","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Of The Auxiliary And Control Contacts":"M3","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":"0.2 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":"4.8 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.14 ... 0.2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$34.29","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f45a0112a94fffa666af5f056c0d9aef.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=210615&mlfb=3RU2116-0BB1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU2116-0BB1/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 3RU2116-0BB1?","answer":"The 3RV1011-1HA10 is a circuit breaker / motor-protective device, not a direct functional second-source for a thermal overload relay. The 3RU2116-0BB1 is a stand-alone overload relay designed to pair with a contactor; the 3RV1011 combines both protection and switching in one device. They are not drop-in replacements — the 3RU2116-0BB1 requires a separate contactor and has a different footprint and wiring scheme."},{"question":"What does the note \"for message Tripped\" mean on the 3RU2116-0BB1?","answer":"It means the integrated auxiliary switch is wired as a normally-open contact that closes when the relay trips, providing a \"Tripped\" status signal to a PLC, annunciator, or indicator light. This is the standard trip-indication contact configuration."},{"question":"What is the depth of the 3RU2116-0BB1?","answer":"The depth is 80 mm. The width is 45 mm and the height is 89 mm."},{"question":"Will the 3RU2116-0BB1 drop into a panel specified around the 3RV1011-1HA10 without rewiring?","answer":"No. The 3RV1011-1HA10 is a motor-protective circuit breaker with a different mounting footprint and wiring scheme. The 3RU2116-0BB1 is a thermal overload relay that mounts stand-alone or onto a SIRIUS contactor. The panel layout, terminal assignments, and conductor routing would need to be redesigned."},{"question":"What compliance documentation does Siemens provide for the 3RU2116-0BB1?","answer":"The substance prohibitance date of 10/01/2009 indicates RoHS compliance. The SIRIUS family typically carries IEC/EN 60947-4-1 compliance. No UL, CSA, or specific certification numbers are listed in this record; verify the nameplate markings for your jurisdiction."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU2116-0BB1","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/3RU2116-0BB1 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}}