{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-1TB00-0KV0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-1TB00-0KV0","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-1TB00-0KV0","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1TB00-0KV0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, Size S00, 3RH1131-1TB00-0KV0, 3 NO instantaneous contacts, screw and snap-on mounting, IP20 front, with varistor surge suppression.","salesMarkdown":"## SIRIUS Size S00 auxiliary contactor with 3 NO contacts It switches control signals and pilot loads — think PLC digital outputs driving contactor coils, indicator lamps, or small solenoid valves in a panel. The 45 mm wide body clips onto DIN rail or screws to a mounting plate, and the IP20 front keeps live terminals out of accidental contact during commissioning. ## Contact ratings — what the voltage columns mean The contact ratings follow the voltage you actually switch. At 24 V it carries 10 A; at 110 V it drops to 1 A; at 230 V it handles 6 A; at 400 V it's rated 3 A; at 690 V it's 1 A. These are thermal current limits for the contact set — the 24 V figure (10 A) is the highest because lower voltage arcs are easier to extinguish. The 230 V and 400 V columns matter when the auxiliary contacts directly switch small motor loads or heater contactors in a mixed-voltage panel. ## Mounting and wiring flexibility Wiring accepts solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm² per terminal. That covers most control wiring from 18 AWG to 12 AWG. The varistor surge suppressor is built in across the coil terminals, so you don't need an external flyback diode for DC coils.","metaTitle":"Siemens 3RH1131-1TB00-0KV0 SIRIUS Auxiliary Contactor, Size","metaDescription":"Siemens 3RH1131-1TB00-0KV0 SIRIUS auxiliary contactor, Size S00, 3 instantaneous NO contacts. Rated 10 A at 24 V, 6 A at 230 V. Screw/snap-on mount. IP20 front. Current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","Leading Contact":"0","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"screw and snap-on mounting","Shock Resistance":"10g / 5 ms and 5g / 10 ms","Delayed Switching":"0","Lagging Switching":"0","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S00","Product Brand Name":"SIRIUS","Contact Reliability":"one incorrect switching operation of 100 million switching operations (17 V, 1 mA)","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.27 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 V","at 690 V rated value":"1 A","Instantaneous Contact":"3","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Substance Prohibitance (Date)":"07/01/2006","Design Of The Surge Suppressor":"with varistor","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","reference code according to IEC 81346-2":"K","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Touch Protection Against Electrical Shock":"finger-safe","with low demand rate according to SN 31920":"40 %","Of Auxiliary Contacts Instantaneous Contact":"0","apparent holding power of magnet coil at AC":"4.6 VA","apparent pick-up power of magnet coil at AC":"27 VA","with high demand rate according to SN 31920":"75 %","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"3","Type Of Voltage Of The Control Supply Voltage":"AC","Inductive Power Factor With Closing Power Of The Coil":"0.8","Identification Number And Letter For Switching Elements":"31 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","Inductive Power Factor With The Holding Power Of The Coil":"0.27","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Type Of Electrical Connection For Auxiliary And Control Circuit":"screw-type terminals","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000","Design Of The Fuse Link For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 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=162580&mlfb=3RH1131-1TB00-0KV0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1TB00-0KV0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of this auxiliary contactor?","answer":"The overall depth is 72 mm, with a width of 45 mm and height of 57.5 mm. That's the Size S00 footprint — common across the SIRIUS 3RH1 family."},{"question":"What wire sizes does the 3RH1131-1TB00-0KV0 accept?","answer":"Each terminal accepts solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm². That covers 18 AWG through 12 AWG solid copper."},{"question":"Where can I buy 3RH1131-1TB00-0KV0 and what is the lead time?","answer":"We source this part to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead time and price."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1131-1TB00-0KV0","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/3RH1131-1TB00-0KV0 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}}