{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-2BB42-ZW95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-2BB42-ZW95","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-2BB42-ZW95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2BB42-ZW95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 24 VDC coil, spring-loaded terminals, 45 mm width, 73 mm depth, 60 mm height.","salesMarkdown":"Spring-loaded terminals on the main current circuit accept 2x (0.25 to 2.5 mm²) solid or stranded wire, or 2x (24 to 14 AWG). That's the same termination as the 3RT1015-1BB42 variant, so a panel wired for the screw-terminal version won't need terminal block changes — just a different wiring habit (no screwdriver torque check). ## Ratings that matter for motor switching Rated operational current at 24 V is 10 A (AC-12), which covers control transformer and resistive loads at that voltage. For motor duty at 400 V, the AC-2 rating is 3 kW, and AC-4 at 400 V is 6.5 A — that's the heavy inrush/plugging duty cycle rating. Type 1 coordination allows up to 35 A. That's the difference between the contactor surviving a fault (Type 2) versus needing replacement after a fault (Type 1). For most production lines, Type 2 is the standard — the 20 A fuse limit is what you'll spec into the BOM. The IP20 finger-safe protection on the front and terminals is standard for enclosed panels; no special sealing needed inside a cabinet.","metaTitle":"Siemens 3RT1015-2BB42-ZW95 SIRIUS Power Contactor, 24 VDC Co","metaDescription":"Siemens SIRIUS 3RT1015-2BB42-ZW95 power contactor, size S00, 24 VDC coil, spring-loaded terminals, 10 A rated operational current at 24 V. Active lifecycle. DIN rail mount.","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":"0.85","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":"1.1","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","Closing power of magnet coil at DC":"3.3 W","Holding power of magnet coil at DC":"3.3 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","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Of The Contactor With Added Electronics-Compatible Auxiliary Switch Block Typical":"5 000 000"}},"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=273090&mlfb=3RT1015-2BB42-ZW95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2BB42-ZW95/alternatives.json"},"ai":{"faq":[{"question":"What's the difference between this and the 3RT1015-1BB42?","answer":"The 3RT1015-2BB42-ZW95 has spring-loaded terminals on the main circuit; the 3RT1015-1BB42 uses screw terminals. Both are size S00 with the same 24 VDC coil, same mounting footprint, and same 45 mm width. If your panel is wired for screw terminals, the spring-clamp version drops in without rewiring the bus — just different termination technique."},{"question":"What are the key ratings for motor switching?","answer":"At 400 V, AC-2 rated power is 3 kW; AC-4 rated current is 6.5 A. The 24 V coil draws 3.3 W. Type 2 coordination requires a 20 A gL/gG fuse."},{"question":"What compliance documentation is available?","answer":"The product carries the DIN EN 81346-2 reference code Q. Standard Siemens SIRIUS documentation includes CE, UL, CSA, and IEC compliance per the series. Specific certificates are available through the manufacturer's documentation portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-2BB42-ZW95","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/3RT1015-2BB42-ZW95 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}}