{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2027-1NB30-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2027-1NB30-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT2027-1NB30-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2027-1NB30-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, S0 size, 24 VDC coil, screw-type terminals, 3RT2027-1NB30-ZX95.","salesMarkdown":"It carries a 24 VDC coil (rated value 21...28 V) with screw-type terminals on both coil and main contacts — field-serviceable with standard tools, no special crimper needed. Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, and the mounting position allows ±180° rotation on a vertical surface plus ±22.5° tilt forward/backward — handy when you're wedging this into a crowded panel on site. ## Coil draw and switching cycles Inrush current peak at 24 V rated value is 10 A, holding at 1.3 A full-scale — that's the sealed current. The coil power factor sits at 0.86 at 50 Hz, 0.82 at 60 Hz. Arcing time is tight at 10 ms, and operating times run 30...50 ms on AC, 35...50 ms on DC. Mechanical life of the contactor is typical 10 million operations. Maximum switching rates vary by duty: AC-1 (resistive) at 1,000 cycles/hour, AC-3 (motor start/run) at 750 cycles/hour, AC-4 (plugging/inching) at 250 cycles/hour. The AC-3e rating also sits at 750 cycles/hour. ## Wiring and clearances Auxiliary contacts take 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) solid or stranded. Overall dimensions are 85 mm height, 45 mm width, 107 mm depth — the depth figure matters when you're checking gland-plate clearance in a shallow enclosure.","metaTitle":"Siemens 3RT2027-1NB30-ZX95 SIRIUS Power Contactor, S0 Size","metaDescription":"Siemens 3RT2027-1NB30-ZX95 SIRIUS power contactor, S0 size, 24 VDC coil, screw terminals. Current production. Quoted to order. Depth 107 mm, width 45 mm.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"107 mm","Solid":"1 ... 10 mm²","Width":"45 mm","at AC":"30 ... 50 ms","at DC":"35 ... 50 ms","Height":"85 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"1 ... 10 mm²","at 50 Hz":"0.86","at 60 Hz":"0.82","Downwards":"10 mm","Arcing Time":"10 ... 10 ms","At The Side":"6 mm","Rated Value":"21 ... 28 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715","Full-Scale Value":"1.3","at AC-3e maximum":"750 1/h","For Main Contacts":"16 ... 8","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":"S0","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"3 A","Product Designation":"Power contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"5 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"27 A","at 50 Hz rated value":"21 ... 28 V","at 500 V rated value":"2 A","at 60 Hz rated value":"21 ... 28 V","at 600 V rated value":"27 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"2 hp","at 200/208 V rated value":"10 hp","at 220/230 V rated value":"10 hp","at 460/480 V rated value":"20 hp","at 575/600 V rated value":"25 hp","Locked-Rotor Current Peak":"0.52 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"45 mA","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"6.3 W","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"22 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2009","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"30 µs","Locked-Rotor Current Mean Value":"0.3 A","Duration Of Locked-Rotor Current":"180 ms","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"44 A","at AC-5b up to 400 V rated value":"26.5 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 50A (690V,100kA), aM: 25A (690V, 100kA), BS88: 50A (415V, 80kA)","Without Load Current Share Typical":"2 W","closing power of magnet coil at DC":"5.9 W","holding power of magnet coil at DC":"1.4 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 125A (690V,100kA), aM: 50A (690V,100kA), BS88: 125A (415V,80kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"2.3 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC/DC","Limited To 1 S Switching At Zero Current Maximum":"499 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"341 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"260 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"199 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"162 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"10 mm²","number of NC contacts for auxiliary contacts instantaneous contact":"1","number of NO contacts for auxiliary contacts instantaneous contact":"1","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1fde785644876f321f38a8815f6d3785.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=13697&mlfb=3RT2027-1NB30-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2027-1NB30-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT2027-1NB30-ZX95?","answer":"The depth is 107 mm. Combined with 85 mm height and 45 mm width, it fits the S0 frame footprint common in IEC panel layouts."},{"question":"Where can I buy 3RT2027-1NB30-ZX95 and how is it quoted?","answer":"This contactor is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm position."},{"question":"What wire sizes does the 3RT2027-1NB30-ZX95 accept?","answer":"Main contacts accept 1...10 mm² solid or stranded. Auxiliary contacts accept 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) solid or stranded. All terminals are screw-type."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2027-1NB30-ZX95","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/3RT2027-1NB30-ZX95 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}}