{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-2KB42-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-2KB42-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-2KB42-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2KB42-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 3RT1015-2KB42-ZW98, 24 V DC coil, spring-loaded terminals, integrated varistor, AC-3 3.5 kW at 400 V.","salesMarkdown":"It mounts via screw or snap-on onto a 35 mm DIN rail per DIN EN 50022, and its spring-loaded terminals on the main current circuit accept solid or stranded conductors up to 2x 2.5 mm² (or 2x 24-14 AWG). The integrated varistor surge suppressor handles coil suppression internally — no external diode needed, which saves a wiring step and avoids polarity mistakes at 2am. The AC-3 motor switching rating is 3.5 kW at 400 V and 4 kW at 690 V, meaning it handles standard three-phase induction motors up to those power levels in normal starting duty. ## Mounting and integration into a panel The S00 frame is compact at 45 mm wide, 60 mm high, and 73 mm deep — it fits tightly on a DIN rail without crowding adjacent devices. Side-by-side mounting is allowed, and the required side clearance is only 6 mm, so you can pack multiple contactors in a row. This matters when the panel design specifies selectivity with downstream motor protection. ## Coil and auxiliary contact details The DC coil draws 2.3 W both on closing and holding — no power drop after pick-up, so the control transformer must supply continuous 2.3 W per contactor. The auxiliary contact block (integrated in this variant) is rated for 10 A at 24 V, 6 A at 230 V, and 3 A at 400 V, covering typical PLC-level signals and small relay loads.","metaTitle":"Siemens 3RT1015-2KB42-ZW98 SIRIUS Power Contactor, 24 VDC, S","metaDescription":"Siemens SIRIUS power contactor 3RT1015-2KB42-ZW98, size S00, 24 VDC coil, spring-loaded terminals, integrated varistor. AC-3 rated 3.5 kW at 400 V. Current lifecycle stage. Sourced","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.7","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.25","Size of contactor":"S00","Product brand name":"SIRIUS","Degree of pollution":"3","Product designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"3.5 kW","at 690 V rated value":"4 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","Single Or Multi-Stranded":"2x (0,25 ... 2,5 mm²)","at AC-2 at 400 V rated value":"3 kW","at AC-4 at 400 V rated value":"6.5 A","Design of the surge suppressor":"with varistor","Closing power of magnet coil at DC":"2.3 W","Holding power of magnet coil at DC":"2.3 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","at AWG conductors for main contacts":"2x (24 ... 14)","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"18 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=448603&mlfb=3RT1015-2KB42-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2KB42-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"AC-3 motor switching: 3.5 kW at 400 V and 4 kW at 690 V. Coil: 24 V DC, 2.3 W. Auxiliary contacts: 10 A at 24 V, 6 A at 230 V. Mechanical life: 30 million operations. Frame size S00, 45 mm wide."},{"question":"What type of terminals does it have?","answer":"Spring-loaded terminals on the main current circuit, accepting 2x (0.25... 2.5 mm²) solid or stranded, or 2x (24... 14) AWG. No screw tightening needed — just strip 8 mm and push in."},{"question":"Does it have a built-in surge suppressor?","answer":"Yes, it includes an integrated varistor surge suppressor across the coil. No external suppression module is required for DC coils."},{"question":"What coordination fusing is recommended?","answer":"For type 2 coordination (no damage): gL/gG 20 A fuse. For type 1 coordination (contactor may need replacement): gL/gG 35 A fuse."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-2KB42-ZW98","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/3RT1015-2KB42-ZW98 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}}