{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-2JB42-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-2JB42-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-2JB42-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2JB42-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 3RT1015-2JB42-ZX95, 24 VDC coil with integrated diode suppression, spring-loaded terminals, 45 mm width, current production.","salesMarkdown":"It uses spring-loaded terminals on the main current circuit, accepting solid or stranded wire 2x (0.25... 2.5 mm²) or 2x (24... 14 AWG). Rated for a 24 VDC coil that draws 2.3 W closing and holding, so the coil driver sees a steady load — no inrush spike to size a power supply around. The diode suppression is built in, which saves a separate flyback diode on the panel layout. The contactor is rated for motor switching: 3.5 kW at 500 V and 4 kW at 690 V. In AC-2 duty (slip-ring motor starting) it carries 3 kW at 400 V; in AC-4 duty (plugging/inching) it handles 6.5 A at 400 V. Those AC-4 numbers matter if the load cycles reversing or jogging — the contactor is sized for that, not just across-the-line starts. Auxiliary contact ratings span 10 A at 24 V down to 0.3 A at 220 V and 6 A at 230 V — covers 24 VDC control circuits and 230 VAC signal loads. ## Mounting and integration details Side-by-side mounting is allowed — no gap needed between contactors — so you can pack multiple units across the rail. Depth is 73 mm, height 60 mm, width 45 mm. Clearance of 6 mm at the side is the minimum to adjacent components for heat dissipation. Maximum altitude 2 000 m without derating. Front and terminal IP20 — safe for finger contact inside a closed panel.","metaTitle":"Siemens SIRIUS 3RT1015-2JB42-ZX95 Power Contactor, 24 VDC, S","metaDescription":"Siemens SIRIUS 3RT1015-2JB42-ZX95 power contactor, size S00, 24 VDC coil, spring-loaded terminals, 45 mm wide, current production. Sourced to order.","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 diode","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=376526&mlfb=3RT1015-2JB42-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2JB42-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RT1015-2JB42-ZX95?","answer":"The 3RT1015-1BB42 is a size S00 contactor in the same SIRIUS family, but it uses screw terminals instead of spring-loaded terminals. The 3RT1015-2JB42-ZX95 has the integrated diode suppression; the -1BB42 does not. If your panel wiring is already set for screw clamps and you supply external suppression, the -1BB42 is a drop-in for the same 24 VDC coil and S00 footprint. Otherwise, the -2JB42-ZX95 is the one to stay with for the spring terminals and built-in diode."},{"question":"Will the 3RT1015-2JB42-ZX95 fit a panel designed around the 3RT1015-1BB42?","answer":"Yes — same size S00, same 45 mm width, same DIN-rail mounting. No rewiring needed for the footprint. The difference is the terminal type (spring-loaded vs screw) and the integrated diode. If the panel's wiring scheme assumes screw terminals, you'll need to adjust the wire termination method, but the physical fit and coil voltage are identical."},{"question":"What compliance documentation is available for this contactor?","answer":"The Siemens SIRIUS series carries UL, CSA, CE, and IEC certifications as standard. RoHS and REACH declarations are part of the Siemens compliance documentation package. Specific cert numbers are on the product label."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-2JB42-ZX95","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/3RT1015-2JB42-ZX95 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}}