{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RU1116-1FB0-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RU1116-1FB0-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RU1116-1FB0-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1FB0-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS thermal overload relay, 3RU1116-1FB0-ZW98, Size S00, CLASS 10 trip, 3-pole, screw terminals, IP20 front, 78 mm depth.","salesMarkdown":"## Product Identification and Compliance It provides CLASS 10 trip protection, meaning it will trip within 10 seconds at 7.2× the set current, per IEC 60947-4-1. This is the standard trip class for standard-duty motor starting applications where the motor accelerates to full speed within a few seconds. For audit and compliance documentation, the relay carries a reference code per IEC 81346-2 (F) and a substance prohibitance date of 07/01/2006, indicating RoHS compliance per the EU directive. This relay is designed for contactor mounting (direct attachment to a matching SIRIUS contactor), not standalone DIN-rail mounting. The fastening method is specified as contactor mounting, so it shares the contactor's panel footprint. Dimensions are 45 mm width, 87 mm height, and 78 mm depth — the depth is the critical dimension for enclosure depth clearance when mounted on a contactor. Mounting position allows a vertical mounting surface with ±135° rotation and ±45° tilt forward/backward. This tight clearance means the relay can be stacked or mounted adjacent to other devices without additional spacing in most directions, though the 6 mm side gap should be maintained for heat dissipation. ## Electrical Ratings and Wiring The auxiliary/control circuit contact ratings are specified across multiple voltages: 1 A at 24 V, 0.22 A at 110 V, 3 A at 120 V, 0.22 A at 125 V, 0.11 A at 220 V, 2 A at 230 V, and 1 A at 400 V. These are the switching capacities for the auxiliary contacts, not the main motor circuit — the main circuit is protected by the overload relay's bimetallic strip and trip mechanism, with the auxiliary contacts carrying the signal to the contactor coil or PLC input. Power dissipation per pole is 2.2 W, totaling 6.6 W for all three poles under full load. This heat must be considered in enclosure thermal calculations, especially in sealed panels without forced ventilation. Wiring capacity: solid conductors accept 2x (0.5...1.5 mm²) and 2x (0.75...2.5 mm²); finely stranded with core end processing accepts the same ranges. AWG equivalents for main contacts are 2x (20...16), 2x (18...14), and 2x 12. Auxiliary contacts accept 2x (20...16) and 2x (18...14) AWG. These ranges cover standard motor control wiring from signal-level to power circuits. The relay withstands shock of 8g for 10 ms, per the specified shock resistance. These ratings confirm the relay is suitable for standard industrial environments, including unheated warehouses during storage, but not for extreme vibration applications without additional damping. The relay carries ATEX approval type DMT 98 ATEX G 001, indicating suitability for use in potentially explosive gas atmospheres when installed in an appropriate enclosure and with proper external protection. This is a significant compliance credential for tender responses in oil/gas, chemical, or mining applications where ATEX certification is mandatory.","metaTitle":"Siemens 3RU1116-1FB0-ZW98 SIRIUS Thermal Overload Relay, Siz","metaDescription":"Siemens 3RU1116-1FB0-ZW98 SIRIUS thermal overload relay, Size S00, CLASS 10 trip, 3 poles, IP20 front, 78 mm depth. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"78 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"45 mm","Height":"87 mm","Upwards":"0 mm","at 24 V":"1 A","Forwards":"0 mm","Per Pole":"2.2 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","Backwards":"0 mm","Downwards":"0 mm","Trip Class":"CLASS 10","At The Side":"6 mm","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +70 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Contactor mounting","Shock Resistance":"8g / 10 ms","Mounting Position":"with vertical mounting surface +/-135° rotatable, with vertical mounting surface +/- 45° tiltable to the front and back","Product Brand Name":"SIRIUS","Type Of Protection":"DMT 98 ATEX G 001","Product Designation":"thermal overload relay","Size Of Overload Relay":"S00","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"07/01/2006","at AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","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","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Size Of Contactor Can Be Combined Company-Specific":"S00","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, 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":"6.6 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"3.5 ... 5 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=358252&mlfb=3RU1116-1FB0-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RU1116-1FB0-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What is the trip class of this overload relay?","answer":"The relay is rated CLASS 10, meaning it will trip within 10 seconds at 7.2× the thermal current setting. This is the standard class for general-purpose motor starting where acceleration time is under 10 seconds."},{"question":"What are the mounting dimensions and clearances?","answer":"Dimensions are 45 mm width, 87 mm height, 78 mm depth. Clearances: 0 mm upwards, forwards, backwards, and downwards; 6 mm at the side. The relay mounts directly onto a SIRIUS contactor, not on a DIN rail."},{"question":"What compliance documentation is available for this relay?","answer":"The relay carries ATEX approval DMT 98 ATEX G 001 for explosive gas atmospheres, RoHS compliance per substance prohibitance date 07/01/2006, and IP20 front protection. It is rated for 100% relative humidity and 6 kV surge voltage resistance."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RU1116-1FB0-ZW98","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/3RU1116-1FB0-ZW98 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}}