{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2017-2KB42-1LA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2017-2KB42-1LA0","canonicalUrl":"https://aoctrl.com/siemens/3RT2017-2KB42-1LA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2017-2KB42-1LA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT2017-2KB42-1LA0, Size S00 contactor, 24 VDC coil, spring-type terminals, 45 mm wide.","salesMarkdown":"It is part of the SIRIUS family, a broad platform for industrial switching and protection. The coil termination uses spring-type terminals, which means no screwdriver is needed for the control wiring — a time-saver during panel build and a reliable connection that won't loosen under vibration. This is the standard mounting for panel builders; the 45 mm width fits a single modular device pitch. For DC switching, the contactor is 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, 3 A at 400 V, and 2 A at 500 V and 690 V. These are the make-and-break capacities for DC loads — the current drops as voltage rises because DC arcs are harder to extinguish. The 10 A at 24 VDC is the figure that matters for most control-circuit or small DC-motor applications. For AC loads, the contactor is rated 11 A at 480 V and 600 V, and 2 hp at 230 V. The 11 A at 480 V is the general-purpose rating for three-phase motor switching in North American 480 V panels; the 2 hp at 230 V covers single-phase motor duty. Electrical life depends on the load type and switching frequency; for high-cycle applications like conveyors, derate accordingly. Dimensions are 45 mm wide, 70 mm high, and 121 mm deep. These are the minimum air gaps needed for heat dissipation and arc flash — crowding the contactor against other devices or the enclosure wall will shorten its life. Main contact wiring accepts solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². The spring terminals grip the wire without needing ferrules, though ferruled stranded wire is still recommended for repeated re-termination.","metaTitle":"Siemens SIRIUS 3RT2017-2KB42-1LA0 Contactor, Size S00, 24 VD","metaDescription":"Siemens SIRIUS 3RT2017-2KB42-1LA0 contactor, size S00, 24 VDC coil. Spring-type terminals, 45 mm wide. Rated for 10 A at 24 VDC, 11 A at 480/600 VAC. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"121 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 mm²","Width":"45 mm","at DC":"7 ... 20 ms","Height":"70 mm","Upwards":"10 mm","Forwards":"10 mm","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"24 V","Initial Value":"0.7","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","Type Of Voltage":"DC","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715","Full-Scale Value":"1.25","For Main Contacts":"20 ... 12","Mounting Position":"standing, on horizontal mounting surface","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,5 ... 4 mm²)","Product Brand Name":"SIRIUS","Product Designation":"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":"30 000 000","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":"2 hp","at 400 V rated value":"3 A","at 480 V rated value":"11 A","at 500 V rated value":"2 A","at 600 V rated value":"11 A","at 690 V rated value":"1 A","Design Of The Product":"With extended operating range","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 12","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"0.5 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"7.5 hp","at 575/600 V rated value":"10 hp","at AC-2 at AC-3e maximum":"750 1/h","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at maximum AC-1 rated value":"4 mm²","at AC in hot operating state":"3.6 W","at AC-2 at 400 V rated value":"5.5 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"8.5 A","Substance Prohibitance (Date)":"10/01/2009","Design Of The Surge Suppressor":"suppressor diode","at AWG cables for main contacts":"2x (20 ... 12)","Of Auxiliary Circuit Rated Value":"6 kV","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","Product Function Bus Communication":"No","With Type Of Assignment 2 Required":"gG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A (415V, 80kA)","Without Load Current Share Typical":"4 W","closing power of magnet coil at DC":"13 W","holding power of magnet coil at DC":"4 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 50A (690V,100kA), aM: 20A (690V,100kA), BS88: 35A (415V,80kA)","at AWG cables for auxiliary contacts":"2x (20 ... 12)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"1.2 W","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 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"No","mirror contact according to IEC 60947-4-1":"Yes","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"73 %","number of NC contacts for auxiliary contacts":"1","Type Of Voltage Of The Control Supply Voltage":"DC","Limited To 1 S Switching At Zero Current Maximum":"200 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"123 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"96 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"74 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"61 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","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)","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/d55d66c2b1a5af9e7cc3a8bb8d2a154c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=366140&mlfb=3RT2017-2KB42-1LA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2017-2KB42-1LA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"The coil is 24 VDC. DC switching capacity is 10 A at 24 V, 2 A at 48/60 V, 1 A at 110 V, 0.9 A at 125 V, 3 A at 400 V, 2 A at 500/690 V. AC switching capacity is 11 A at 480/600 V and 2 hp at 230 V. Mechanical life is 30,000,000 operations."},{"question":"What is the mounting and wiring specification?","answer":"It mounts on a 35 mm DIN rail (DIN EN 60715) with screw or snap-on. Dimensions are 45 x 70 x 121 mm. Main contacts accept 2x 0.5-1.5 mm², 2x 0.75-2.5 mm², or 2x 4 mm² solid or stranded wire via spring terminals. Clearances: 10 mm up/down/forward, 6 mm sides."},{"question":"Does this contactor include an auxiliary switch?","answer":"Yes, it has an auxiliary switch built in, usable for status feedback or interlocking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2017-2KB42-1LA0","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/3RT2017-2KB42-1LA0 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}}