{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1431-1AB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1431-1AB00","canonicalUrl":"https://aoctrl.com/siemens/3RH1431-1AB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1431-1AB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 3 NO + 0 NC, 24 V 50/60 Hz coil, screw and snap-on mounting, IP20 front protection.","salesMarkdown":"It carries 3 normally open (instantaneous) contacts and no normally closed or delayed contacts, making it a straightforward extension for adding NO signal paths to a contactor or relay setup. The IP20 front protection means it's suited for enclosed panel use where no washdown or direct spray is present. The coil is rated 24 V at 50/60 Hz, with a tolerance band of 0.8...1.1 at 50 Hz and 0.85...1.1 at 60 Hz — meaning the coil reliably picks up between about 19.2 V and 26.4 V at 50 Hz, and between about 20.4 V and 26.4 V at 60 Hz. This is a standard control voltage for industrial panels; verify your control transformer taps if running at the low end. Contact ratings vary by voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. These are the thermal continuous currents the contacts can carry at those voltages — useful for sizing auxiliary loads like indicator lamps, PLC inputs, or small relay coils. Contact reliability is rated at one incorrect switching operation per 100 million cycles at 17 V, 1 mA — a dry-circuit spec that matters when switching low-energy signals like PLC inputs. ## Wiring and environmental limits Terminals accept solid conductors: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or 2x 4 mm². That covers most control wiring from signal-level to small power feeds. Shock resistance is 10g / 5 ms and 5g / 10 ms, adequate for normal industrial vibration but not extreme continuous shock. The S00 footprint is compact — it fits alongside contactors and relays in a standard control panel without crowding.","metaTitle":"Siemens 3RH1431-1AB00 SIRIUS Auxiliary Contactor, S00, 3 NO","metaDescription":"Siemens 3RH1431-1AB00 SIRIUS auxiliary contactor, size S00, 3 NO contacts, 24 V 50/60 Hz coil. Current production. Screw and snap-on mounting. IP20 front. Sourced to order against","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":"90 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":"5 000 000","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","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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":"5 000 000","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=396386&mlfb=3RH1431-1AB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1431-1AB00/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RH1431-1AB00?","answer":"Submit an RFQ through this listing. We source the part to order through our independent distribution channels and confirm current pricing and lead time at quote time."},{"question":"What is 3RH1431-1AB00's contact configuration?","answer":"It has 3 normally open (instantaneous) contacts and 0 normally closed contacts. There are no leading, lagging, delayed, or make-before-break switching contacts."},{"question":"What compliance documentation does this part carry?","answer":"The part is RoHS compliant with a substance prohibition date of July 1, 2006. It carries IP20 front protection and surge voltage resistance rated at 6 kV. Standard Siemens SIRIUS documentation (CE, UL, CSA) applies per the series."},{"question":"Will 3RH1431-1AB00 drop into a panel specified around 3RH2422-1AB00 without rewiring?","answer":"Both are SIRIUS auxiliary contactors in size S00 with the same mounting footprint (screw and snap-on DIN rail) and similar terminal wire capacities. The 3RH2422-1AB00 has a different coil voltage and contact arrangement — verify your control voltage and NO/NC count before substituting. The mechanical fit is the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1431-1AB00","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/3RH1431-1AB00 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}}