{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2038-1NB30-0CC0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2038-1NB30-0CC0","canonicalUrl":"https://aoctrl.com/siemens/3RT2038-1NB30-0CC0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2038-1NB30-0CC0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2038-1NB30-0CC0, Size S2 power contactor, screw-type coil terminals, 20-33 V rated coil voltage, screw and snap-on 35 mm DIN rail mounting.","salesMarkdown":"It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 60715, with the mounting position allowing +/-180° rotation on a vertical surface and +/-22.5° forward/backward tilt — useful when the panel layout forces an unconventional orientation. The coil is rated 20-33 V (AC/DC), with an inrush current peak of 3 A and steady-state draw of 2 VA at both 50 and 60 Hz. That 2 VA figure matters for transformer sizing on the control circuit — a multi-contactor panel needs the summed VA, not just the sealed power. ## Duty-cycle and switching frequency Maximum switching frequency depends on the utilisation category: 700 operations/hour for AC-1 (resistive), 500/h for AC-3 and AC-3e (standard motor starting), 350/h for AC-2 (slip-ring motor), and 150/h for AC-4 (plugging/inching). The AC-3e rating at 500/h is the one to use for a standard squirrel-cage motor start/stop cycle — it matches the AC-3 figure, so no derating for that variant. Arcing time runs 10-20 ms; the make and break times at both AC and DC are 30-55 ms. These are typical for a contactor of this frame size and inform the coordination with upstream short-circuit protection. ## Auxiliary contact ratings and wiring The contactor ships with an auxiliary switch block (18-1 configuration for main contacts). The auxiliary contacts are rated: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, and 0.3 A at 220 V. These are the maximum continuous currents — useful for direct PLC input sensing or pilot-duty relay coils without an interposing relay. Main coil terminals are screw-type, accepting 2x (0.5-1.5 mm²) or 2x (0.75-2.5 mm²) solid or stranded wire. The auxiliary terminals share the same range. Strip length and ferrule sizing follow standard practice for this terminal class. ## Environmental limits and clearances Minimum clearances to adjacent components: 10 mm upwards, downwards, and forwards; 6 mm at the sides. In a dense DIN-rail layout, the 6 mm side gap is the binding constraint — plan the gland plate and wireway accordingly.","metaTitle":"Siemens 3RT2038-1NB30-0CC0 SIRIUS Power Contactor, Size S2,","metaDescription":"Siemens SIRIUS 3RT2038-1NB30-0CC0 power contactor, Size S2, screw terminals, 20-33 VAC/VDC coil. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Width":"55 mm","at AC":"30 ... 55 ms","at DC":"30 ... 55 ms","Height":"114 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"2 VA","at 60 Hz":"2 VA","Downwards":"10 mm","Arcing Time":"10 ... 20 ms","At The Side":"6 mm","Rated Value":"20 ... 33 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-1 maximum":"700 1/h","at AC-2 maximum":"350 1/h","at AC-3 maximum":"500 1/h","at AC-4 maximum":"150 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":"1.1","at AC-3e maximum":"500 1/h","For Main Contacts":"18 ... 1","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":"S2","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":"15 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.6 A","at 480 V rated value":"65 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":"62 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":"5 hp","at 200/208 V rated value":"20 hp","at 220/230 V rated value":"25 hp","at 460/480 V rated value":"50 hp","at 575/600 V rated value":"60 hp","Locked-Rotor Current Peak":"2.6 A","Relative Humidity Minimum":"10 %","Holding Current Mean Value":"40 mA","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"17.1 W","at AC-2 at 400 V rated value":"37 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"55 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2014","Design Of The Surge Suppressor":"with varistor","Duration Of Inrush Current Peak":"50 µs","Locked-Rotor Current Mean Value":"1 A","Duration Of Locked-Rotor Current":"230 ms","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"79.2 A","at AC-5b up to 400 V rated value":"66.4 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"Yes","With Type Of Assignment 2 Required":"gG: 160A (690V,100kA), aM: 80A (690V,100kA), BS88: 125A (415V,80kA)","Without Load Current Share Typical":"2 W","closing power of magnet coil at DC":"23 W","holding power of magnet coil at DC":"1 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 250 A (690 V, 100 kA), aM: 160 A (690 V, 100 kA), BS88: 200 A (415 V, 80 kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"5.7 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":"1 298 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"898 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"640 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"414 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"333 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":"35 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/62ba16907d42ce1f833f2ad21c70f177.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=201411&mlfb=3RT2038-1NB30-0CC0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2038-1NB30-0CC0/alternatives.json"},"ai":{"faq":[{"question":"What are the key dimensions of 3RT2038-1NB30-0CC0?","answer":"The contactor measures 114 mm height, 55 mm width, and 130 mm depth. The 55 mm width is the panel-space figure that matters for DIN-rail fill calculations."},{"question":"Where can I buy 3RT2038-1NB30-0CC0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer."},{"question":"What compliance documentation is available for this contactor?","answer":"As a Siemens SIRIUS product, the 3RT2038-1NB30-0CC0 carries CE marking and is designed to meet relevant IEC/EN standards for contactors. Specific RoHS/REACH declarations and UL file information are available on request with the RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2038-1NB30-0CC0","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/3RT2038-1NB30-0CC0 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}}