{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2348-1NB30","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2348-1NB30","canonicalUrl":"https://aoctrl.com/siemens/3RT2348-1NB30","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2348-1NB30","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS contactor, size S3, 3RT2348-1NB30, 20-33 V AC/DC coil, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The coil accepts 20 to 33 V AC/DC, drawing 3.5 VA at both 50 Hz and 60 Hz, with an inrush peak of 6.5 A. That 3.5 VA hold power is the same at both line frequencies, so no derating needed when switching between 50 Hz and 60 Hz supply regions. Size S3 is the frame size. The main contacts are rated for 10 to 2 A. The auxiliary contact block is built in (yes on auxiliary switch), with screw-type terminals. The auxiliary contacts are rated at specific voltages: 10 A at 24 V, 2 A at 48 V, 6 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 6 A at 230 V. The 10 A at 24 V is generous for a 24 VDC control loop; the 0.3 A at 220 V is typical for a 220 VAC pilot light or relay coil. Dimensions: 140 mm high, 96 mm wide, 152 mm deep. The 96 mm width is three 32 mm modules wide on a DIN rail — standard for a size S3 contactor. The 152 mm depth includes the coil terminals and any auxiliary block; check clearance behind the panel door. These are minimum air gaps for heat dissipation and arc quenching — don't crowd the contactor against other components or the enclosure wall. Main circuit wiring accepts stranded conductors from 6 to 70 mm². Auxiliary circuit wiring accepts solid conductors: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). The 70 mm² main terminal is large enough for a 50 A feed; the auxiliary terminals are sized for standard control wiring. This helps when the contactor must be mounted at an angle in a tight cabinet or on a swing frame. Up to 2 auxiliary switches can be attached. The operating range factor is 0.8 (initial) to 1.1 (full-scale) of rated voltage. No last-time-buy constraints, no broker-channel dependency. If you're freezing a BOM for a new line or filling an MRO spare, this is a clean active part to specify.","metaTitle":"Siemens 3RT2348-1NB30 SIRIUS Contactor, S3, 20-33 V AC/DC Co","metaDescription":"Siemens SIRIUS 3RT2348-1NB30 contactor, size S3, 20-33 V AC/DC coil. Current production. Screw/snap-on 35 mm DIN rail. 152 mm depth. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"152 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"96 mm","at AC":"38 ... 57 ms","at DC":"38 ... 57 ms","title":"3RT2348-1NB30","Height":"140 mm","Upwards":"10 mm","Forwards":"20 mm","Stranded":"6 ... 70 mm²","at 50 Hz":"3.5 VA","at 60 Hz":"3.5 VA","Downwards":"10 mm","Attachable":"2","Arcing Time":"10 ... 20 ms","At The Side":"10 mm","Rated Value":"20 ... 33 V","description":"contactor AC-1, 160 A, 400 V / 40 °C, 4-pole, 20-33 V AC/DC, 50/60 Hz, with integrated varistor, auxiliary contacts: 1 NO + 1 NC, screw terminal, size: S3","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","Type Of Voltage":"AC/DC","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":"1.1","For Main Contacts":"10 ... 2","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":"S3","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Inrush Current Peak":"6.5 A","Product Designation":"Contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"6 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":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"20 ... 33 V","at 500 V rated value":"2 A","at 60 Hz rated value":"20 ... 33 V","at 600 V rated value":"0.1 A","at 690 V rated value":"1 A","Instantaneous Contact":"1","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 14","For Main Current Circuit":"screw-type terminals","Locked-Rotor Current Peak":"6.5 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"75 mA","Of Main Circuit Rated Value":"8 kV","at AC in hot operating state":"61.6 W","Substance Prohibitance (Date)":"09/01/2017","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"50 µs","Locked-Rotor Current Mean Value":"3.2 A","Duration Of Locked-Rotor Current":"150 ms","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"gR: 250 A (690 V, 100 kA)","Without Load Current Share Typical":"2.7 W","closing power of magnet coil at DC":"76 W","holding power of magnet coil at DC":"2.7 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","operating frequency at AC-1 maximum":"650 1/h","With Type Of Coordination 1 Required":"gG: 250 A (690 V, 100 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"15.4 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","number of NO contacts for main contacts":"4","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":"4","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"AC/DC","Limited To 1 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"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","For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (690 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"70 mm²","Of The Auxiliary And Control Circuit With Degree Of Pollution 3 Rated Value":"690 V","Design Of The Miniature Circuit Breaker For Short-Circuit Protection Of The Auxiliary Switch Required":"gG: 10 A (230 V, 400 A)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/589d2506d1b6308a8f97adbcbc16094e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=630056&mlfb=3RT2348-1NB30"},"ai":{"faq":[{"question":"What wire sizes does the 3RT2348-1NB30 accept?","answer":"Main circuit terminals accept stranded wire from 6 to 70 mm². Auxiliary circuit terminals accept solid wire: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2348-1NB30","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/3RT2348-1NB30 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}}