{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RH7131-1AQ00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RH7131-1AQ00","canonicalUrl":"https://aoctrl.com/siemens/3RH7131-1AQ00","factsUrl":"https://aoctrl.com/api/mcp/products/3RH7131-1AQ00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor relay, size S00, 3 NO + 1 NC auxiliary contacts, AC coil, screw-type terminals, 45 mm width, IP20 front.","salesMarkdown":"It carries 3 normally open and 1 normally closed auxiliary contacts (switching element identification 31 E), rated for AC control voltage. The screw-type terminals accept 2x (0.5 to 1.5 mm²) solid or stranded, or up to 4 mm², and it mounts via screw or snap-on onto a standard 35 mm DIN rail. Front protection is IP20, so it's suitable for enclosed panels where accidental finger contact is the concern. The 72 mm depth and 45 mm width mean it sits compactly on the rail, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward — useful for tight enclosures where orientation flexibility matters. The contact reliability is specified for PLC control at 17 V, 5 mA — meaning these auxiliary contacts are rated to switch low-energy signals reliably, not just power loads. That's a common gotcha: a contactor relay that works fine at 230 V may not wet a PLC input at 24 V. This one is explicitly qualified for that duty. Rated operational currents: 6 A at 24 V, 230 V, and 400 V AC; 1 A at 690 V and 110 V; 0.3 A at 220 V. The 6 A rating at 400 V covers the typical control voltage for many European panels, while the 1 A at 690 V suits higher-voltage auxiliary circuits. Surge voltage resistance is 20 kV, giving solid margin for transient-heavy environments like motor starter bays. Coil apparent power: 27 VA pick-up, 5.4 VA holding at AC. The holding power is low enough that multiple relays on a control transformer won't overload it in steady state, but the pick-up surge needs to be factored into transformer sizing — especially if several coils energize simultaneously. The S00 size is the smallest Siemens contactor frame, so it fits in tight rows alongside other S00 devices. The screw terminals are clearly marked for auxiliary and control circuits, and the 31 E contact configuration (3 NO + 1 NC) is a common pattern for signaling interlock or feedback to a PLC. Operating temperature range is -10 to +55 °C; storage from -25 to +70 °C. Shock resistance: 15g / 5 ms and 8g / 10 ms sine pulse at AC, plus 10g / 5 ms and 5g / 10 ms rectangular impulse — adequate for most industrial panel environments, including conveyor and material handling applications.","metaTitle":"Siemens 3RH7131-1AQ00 SIRIUS Contactor Relay, 3 NO + 1 NC, A","metaDescription":"Siemens SIRIUS 3RH7131-1AQ00 contactor relay, size S00, 3 NO + 1 NC auxiliary contacts, AC coil, screw terminals, IP20 front, current production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Width":"45 mm","title":"3RH7131-1AQ00","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","description":"Contactor relay 3NO1NC AC 380V 50/60Hz size S00, screw terminal","During Storage":"-25 ... +70 °C","lifecycle_stage":"current","During Operation":"-10 ... +55 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting 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","Product Designation":"Contactor relay","at 24 V rated value":"6 A","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"6 A","at 50 Hz rated value":"380 V","at 60 Hz rated value":"380 V","at 690 V rated value":"1 A","protection class IP on the front":"IP20","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"20 kV","operating frequency at DC-13 maximum":"1 000 1/h","shock resistance with sine pulse at AC":"15g / 5 ms, 8g / 10 ms","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Contact Reliability Of Auxiliary Contacts":"acceptability for PLC control (17 V, 5 mA)","apparent holding power of magnet coil at AC":"5.4 VA","apparent pick-up power of magnet coil at AC":"27 VA","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","shock resistance at rectangular impulse at AC":"10g / 5 ms, 5g / 10 ms","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","Inductive Power Factor With The Holding Power Of The Coil":"0.27","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,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/5dd2c2703bf0c5a4856be6f529c6a28e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533821&mlfb=3RH7131-1AQ00"},"ai":{"faq":[{"question":"What are the key ratings of this contactor relay?","answer":"It has 3 NO + 1 NC auxiliary contacts (31 E), AC coil, screw terminals, rated 6 A at 24/230/400 V AC, 1 A at 690 V, and 0.3 A at 220 V. Contact reliability is specified for PLC control at 17 V, 5 mA. Coil pick-up is 27 VA, holding 5.4 VA. IP20 front protection."},{"question":"What compliance documentation is available?","answer":"The product is a Siemens SIRIUS component with standard CE marking for the EU market. Specific RoHS, REACH, and UL documentation is typically provided by Siemens upon request for the SIRIUS series. The surge voltage resistance of 20 kV and IP20 front protection indicate design for industrial control panel environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RH7131-1AQ00","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/3RH7131-1AQ00 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}}