{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-1BB40-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-1BB40-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-1BB40-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1BB40-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, auxiliary contactor, 3RH1131-1BB40-ZW98, 24 V DC coil, size S00, 45 mm width, 3 NO + 1 NC contacts, IP20 front, screw and snap-on mounting.","salesMarkdown":"## Siemens 3RH1131-1BB40-ZW98 SIRIUS Auxiliary Contactor — 24 V DC, S00 Frame The 24 V DC coil pulls in at 0.8 of rated voltage and holds at 3.2 W — a steady-state draw that stays within the typical 24 VDC power supply budget for a PLC output card or control transformer. Rated operational currents scale with voltage: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 1 A at 690 V. The 690 V, 1 A rating confirms it can switch a 690 VAC control circuit if the panel uses that voltage class. At 45 mm wide, 57.5 mm tall, and 72 mm deep, the S00 frame fits standard DIN-rail spacing. Terminals accept solid conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or 2x 4 mm². AWG equivalents are 2x (20–16), 2x (18–14), and 1x 12. That covers the common control wire sizes for panel wiring — 1.5 mm² for most signal runs, 2.5 mm² for longer coil feeds where voltage drop is a concern. The IP20 front protection means tools and fingers stay out of the live terminals when the panel door is open, but the contactor itself is not sealed against washdown. For a BOM freeze or second-source gate, the closest functional peer in the SIRIUS line is the 3RH2122-1BA40 — same S00 frame, same 24 V DC coil, but with a different contact arrangement (2 NO + 2 NC versus the 3 NO + 1 NC on this part). The 3RH2122-1BA40 will drop into the same DIN-rail footprint and wiring pattern, but the contact count difference means a controls drawing review if the spare NO or NC is used for a safety circuit. Shock resistance is 10g for 5 ms and 5g for 10 ms — adequate for panel-mounted gear in industrial machinery but not rated for direct mounting on a vibrating pump skid. Coil closing and holding power are both 3.2 W DC.","metaTitle":"Siemens 3RH1131-1BB40-ZW98 SIRIUS Auxiliary Contactor, 24 V","metaDescription":"Siemens SIRIUS 3RH1131-1BB40-ZW98 auxiliary contactor. 24 V DC coil, 3.2 W hold, size S00, 45 mm wide, IP20 front. Current lifecycle. Sourced to order. Request RFQ.","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","Rated Value":"24 V","Initial Value":"0.8","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","Full-Scale Value":"1.1","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 500 V rated value":"2 A","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","closing power of magnet coil at DC":"3.2 W","holding power of magnet coil at DC":"3.2 W","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","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":"DC","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","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=201291&mlfb=3RH1131-1BB40-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1BB40-ZW98/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1131-1BB40-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/3RH1131-1BB40-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}}