{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1131-1HB40-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1131-1HB40-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH1131-1HB40-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1HB40-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH1131-1HB40-ZW97 coupling relay, Size S00, 24 VDC coil, 10 A AC-12 rated, screw and snap-on mounting, IP20 front.","salesMarkdown":"The Siemens 3RH1131-1HB40-ZW97 is a SIRIUS coupling relay designed for switching auxiliary circuits in control panels. It's a Size S00 device, meaning it fits the compact footprint of smaller contactors and relays in the SIRIUS modular system. The 24 VDC coil draws 2.3 W on both closing and holding, so the power supply budget is flat — no inrush spike to design around. Rated at 10 A for AC-12 duty (resistive loads in control circuits), it handles the typical auxiliary load of indicator lamps, contactor coils, and PLC inputs. The 45 mm width, 57.5 mm height, and 72 mm depth keep it within the S00 envelope, so it slots next to a 3RT2 contactor without crowding. That matters when you're laying out a dense panel and need to angle the relay for wire access. Terminals accept solid conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm². IP20 on the front protects against finger contact, standard for enclosed gear. The AC-12 rating of 10 A at 24 V is the headline number for auxiliary switching, but the relay also carries rated values across a range of voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, 2 A at 500 V, and 1 A at 690 V. That's the thermal current rating derating with voltage — useful if you're switching a control transformer primary or a 400 V indicator circuit. The 6 kV surge voltage resistance gives it margin against switching transients on the line side. The 30 million typical mechanical cycles mean it outlasts most contactors it's paired with in auxiliary duty.","metaTitle":"Siemens 3RH1131-1HB40-ZW97 SIRIUS Coupling Relay, 24 VDC, 10","metaDescription":"Siemens SIRIUS 3RH1131-1HB40-ZW97 coupling relay for auxiliary circuits. 24 VDC coil, 10 A at AC-12. Size S00, snap-on DIN rail. IP20 front. Current lifecycle stage. Sourced to ord","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":"0.7","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":"1.25","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":"Coupling relay for switching auxiliary circuits","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":"No","closing power of magnet coil at DC":"2.3 W","holding power of magnet coil at DC":"2.3 W","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","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","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","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=257297&mlfb=3RH1131-1HB40-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1131-1HB40-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions for panel layout?","answer":"Width is 45 mm, height 57.5 mm, depth 72 mm. It's a Size S00 footprint, so it fits alongside S00 contactors and other SIRIUS modular components on the same DIN rail without spacing issues."},{"question":"What wire sizes does the terminal accept?","answer":"Solid conductors: 2x 0.5 to 1.5 mm², 2x 0.75 to 2.5 mm², or 2x 4 mm². The spring-cage or screw terminals (fastening method is screw and snap-on) handle the typical control wiring range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1131-1HB40-ZW97","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/3RH1131-1HB40-ZW97 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}}