{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH2140-1AB00-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH2140-1AB00-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RH2140-1AB00-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RH2140-1AB00-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS auxiliary contactor, size S00, 4 NO instantaneous contacts, 24 V 50/60 Hz coil, screw and snap-on mounting onto 35 mm DIN rail, 45 x 57.5 x 73 mm.","salesMarkdown":"The coil is rated for 24 V at both 50 Hz and 60 Hz, with an operating range of 0.8 to 1.1 times rated voltage at 50 Hz and 0.85 to 1.1 at 60 Hz — so it holds in through typical line dips but drops out cleanly below the undervoltage threshold. The contacts carry 10 A at 24 V AC and 10 A at 230 V AC, tapering to 3 A at 400 V AC and 0.26 A at 600 V AC — these are the thermal continuous currents for general-purpose AC loads, so the same contact set handles a 24 V PLC output interposing relay or a 230 V pilot light without derating. At DC voltages the rating drops faster: 4.7 A at 60 V DC, 1.2 A at 220 V DC, 0.5 A at 440 V DC — a common gotcha for panel builders who assume AC ratings carry over to DC circuits. For a 24 V DC solenoid valve bank, the 10 A AC rating does not apply; use the DC column. Operating temperature range is -25 to +60 °C, storage from -55 to +80 °C, with 10 % relative humidity minimum. The S00 frame dimensions — 45 mm wide, 57.5 mm tall, 73 mm deep — fit alongside a Siemens contactor in the same footprint, sharing the same DIN-rail slot pitch. It carries the substance-prohibitance date of 10/01/2009, indicating RoHS compliance for the European market.","metaTitle":"Siemens 3RH2140-1AB00-ZW97 SIRIUS Auxiliary Contactor, 4 NO,","metaDescription":"Siemens 3RH2140-1AB00-ZW97 SIRIUS auxiliary contactor, size S00, 4 NO contacts, 24 V 50/60 Hz coil, screw and snap-on 35 mm DIN rail mounting. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Width":"45 mm","at AC":"4 ... 15 ms","at DC":"10 000 1/h","title":"3RH2140-1AB00-ZW97","Height":"57.5 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","description":"Contactor relay, 4 NO 24 V AC, 50/60 Hz Size S00, screw terminal Multi-unit packaging = 40 units","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","During Storage":"-55 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","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","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"Auxiliary contactor","at 24 V rated value":"10 A","at 60 V rated value":"4.7 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"3 A","at 220 V rated value":"1.2 A","at 230 V rated value":"10 A","at 400 V rated value":"3 A","at 440 V rated value":"0.5 A","at 50 Hz rated value":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 V","at 600 V rated value":"0.26 A","at 690 V rated value":"1 A","Instantaneous Contact":"4","Relative Humidity Minimum":"10 %","Substance Prohibitance (Date)":"10/01/2009","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","operating frequency at DC-12 maximum":"1 000 1/h","operating frequency at DC-13 maximum":"1 000 1/h","operational current at AC-12 maximum":"10 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 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)","with low demand rate according to SN 31920":"40 %","apparent holding power of magnet coil at AC":"5.7 VA","apparent pick-up power of magnet coil at AC":"37 VA","with high demand rate according to SN 31920":"73 %","number of NO contacts for auxiliary contacts":"4","Type Of Voltage Of The Control Supply Voltage":"AC","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.8","Identification Number And Letter For Switching Elements":"40 E","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.25","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","design of the miniature circuit breaker for short-circuit protection of the auxiliary circuit up to 230 V":"C characteristic: 6 A; 0.4 kA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3516f53c34c57d756804280801b8b53d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=774115&mlfb=3RH2140-1AB00-ZW97"},"ai":{"faq":[{"question":"What is the contact configuration on 3RH2140-1AB00-ZW97?","answer":"It has four normally open instantaneous contacts — no NC contacts on this variant, so if you need a break contact for a safety interlock or a status feedback, you would add a side-mounted auxiliary block or choose a different contact arrangement."},{"question":"Will 3RH2140-1AB00-ZW97 drop into a panel specified around 3RH2131-2AK60?","answer":"Both are S00-frame SIRIUS auxiliary contactors with the same 45 mm width and DIN-rail mounting, so the mechanical fit is identical. The difference is contact arrangement: the 3RH2131-2AK60 carries a different contact set — verify your circuit's NO/NC count before swapping."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH2140-1AB00-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/3RH2140-1AB00-ZW97 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}