{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2023-1NB30","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2023-1NB30","canonicalUrl":"https://aoctrl.com/siemens/3RT2023-1NB30","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2023-1NB30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2023-1NB30 power contactor, S0 size, 24 V DC coil, screw-type terminals, 45 mm width.","salesMarkdown":"## Part Identification and Ratings The coil is rated 21–28 V DC, with a typical inrush peak of 3 A and a holding power factor of 0.7 at 50 Hz. Main contact switching capacity is specified at 10 A at 24 V, 2 A at 48 V and 60 V, and 1 A at 110 V — these are the DC-1 or DC-13 ratings that govern inductive load break. For AC-3 motor duty, the contactor is rated for up to 1 000 operating cycles per hour, and for AC-4 (inching/jogging) up to 300 cycles per hour. ## Mounting and Wiring Flexibility The contactor accepts solid and stranded conductors from 1 to 10 mm², with a dual-wire capability of 2x (0.5–1.5 mm²) or 2x (0.75–2.5 mm²) for auxiliary circuits. The screw-type coil terminals are clearly marked, and the auxiliary switch block is integrated.","metaTitle":"Siemens SIRIUS 3RT2023-1NB30 Power Contactor, S0, 24V Coil","metaDescription":"Siemens SIRIUS 3RT2023-1NB30 power contactor, S0 size, 24V DC coil, screw terminals, 45mm width. Rated for AC-3 switching up to 1000 cycles/h. Current production status.","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":"30 ... 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":"1 000 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 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":"1 000 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":"1 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"7.6 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":"9 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":"1 hp","at 200/208 V rated value":"2 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"5 hp","at 575/600 V rated value":"7.5 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":"0.6 W","at AC-2 at 400 V rated value":"4 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"8.5 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":"35.2 A","at AC-5b up to 400 V rated value":"7.4 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (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: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.2 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":"170 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"170 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"140 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"104 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"88 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / P600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","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/1856d50a1a18f9c9e03570419850db15.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=528979&mlfb=3RT2023-1NB30","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2023-1NB30/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to the 3RT2023-1NB30?","answer":"The 3RT2023-1NP30 is the closest peer — same S0 frame, same coil voltage range, and same screw-terminal design. It will drop into the same panel footprint without rewiring, though verify the auxiliary contact configuration if your circuit uses them."},{"question":"What are the key dimensions of this contactor?","answer":"Width is 45 mm, height 85 mm, and depth 107 mm — the standard S0 footprint that fits most DIN-rail enclosures."},{"question":"What wire sizes does the 3RT2023-1NB30 accept?","answer":"It accepts solid and stranded conductors from 1 to 10 mm², and dual-wire terminations of 2x (0.5–1.5 mm²) or 2x (0.75–2.5 mm²) for auxiliary circuits."},{"question":"What compliance documentation is available for this part?","answer":"As a Siemens SIRIUS product, it carries CE marking for the European market and is designed to meet IEC/EN 60947-4-1. RoHS and REACH declarations are provided with the shipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2023-1NB30","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/3RT2023-1NB30 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}}