{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH1262-2BB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH1262-2BB40","canonicalUrl":"https://aoctrl.com/siemens/3RH1262-2BB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RH1262-2BB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RH1262-2BB40 auxiliary contactor, 24 VDC coil, 6 instantaneous NO contacts, S00 frame size, IP20 front, screw and snap-on mounting.","salesMarkdown":"It's built on the S00 frame size, the smallest in the SIRIUS family, which keeps the panel footprint tight at 45 mm wide. That steady draw matters when you're sharing a power supply across a row of contactors in a panel. That means you're not fighting panel layout constraints — it'll work in tight enclosures or angled subpanels. Each of the six NO contacts is rated 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 1 A at 690 V. These are thermal continuous ratings (AC-1 / resistive load class) — so they tell you the maximum current the contacts can carry without overheating when switching resistive loads like heaters or signal lamps. For motor or inductive loads, you'd derate per the AC-3 curve, but the 10 A at 24 V gives you headroom for pilot-duty circuits. ## Wiring and panel integration Terminals accept solid conductors from 0.25 to 2.5 mm² — that covers standard control wiring from 24 AWG up to 14 AWG. The screw-clamp terminals are reliable for panel builders who prefer a positive mechanical connection over push-in terminations.","metaTitle":"Siemens 3RH1262-2BB40 SIRIUS Auxiliary Contactor, 24 VDC, 6","metaDescription":"Siemens SIRIUS 3RH1262-2BB40 auxiliary contactor, 24 VDC coil, 6 instantaneous NO contacts, S00 frame size. Active production. IP20 front. Rated 10 A at 24 V, 6 A at 230 V. Screw a","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"114 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 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":"10 000 000","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":"6","For Auxiliary Contacts":"0","Make-Before-Break Switching":"0","Substance Prohibitance (Date)":"01.07.2006 00:00:00","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"No","closing power of magnet coil at DC":"3.2 W","holding power of magnet coil at DC":"3.2 W","reference code acc. to IEC 81346-2":"K","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","with low demand rate acc. to SN 31920":"40 %","with high demand rate acc. to SN 31920":"75 %","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Touch Protection Against Electrical Shock":"finger-safe","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Of Auxiliary Contacts Instantaneous Contact":"0","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"6","Type Of Voltage Of The Control Supply Voltage":"DC","B10 value with high demand rate acc. to SN 31920":"1 000 000; With 0.3 x Ie","Identification Number And Letter For Switching Elements":"62 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":"Cage Clamp 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":"$38.10","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=329871&mlfb=3RH1262-2BB40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RH1262-2BB40/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this auxiliary contactor?","answer":"It has a 24 VDC coil drawing 3.2 W, six NO contacts rated 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V. Surge voltage resistance is 6 kV, and mechanical life is 10 million operations typical."},{"question":"What wire sizes does it accept?","answer":"The screw terminals accept solid conductors from 0.25 mm² to 2.5 mm², covering standard control wiring from roughly 24 AWG to 14 AWG."},{"question":"Does 3RH1262-2BB40 drop into a panel designed for a 3RT1015-1BB42?","answer":"Both are S00 frame size contactors from the Siemens SIRIUS family, so the physical footprint (45 mm width, same DIN-rail mounting) and terminal layout are compatible. The 3RH1262-2BB40 is an auxiliary contactor with six NO contacts, while the 3RT1015-1BB42 is a power contactor — they serve different circuit functions but share the same mechanical platform."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH1262-2BB40","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/3RH1262-2BB40 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}}