{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2115-1EH15-1FB4","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2115-1EH15-1FB4","canonicalUrl":"https://aoctrl.com/siemens/3RA2115-1EH15-1FB4","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2115-1EH15-1FB4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RA2115-1EH15-1FB4 direct (on-line) starter, size S00, 1.5 kW at 400 V AC-3, CLASS 10, 24 V control, spring-loaded terminals, for 60 mm busbar systems.","salesMarkdown":"## What ships in the carton — complete kit check The 3RA2115-1EH15-1FB4: This is a factory-assembled direct (on-line) starter, size S00, built around the 3RT2015-2FB41 contactor. The kit includes the supplied link module 3RA2911-2AA00, the circuit-breaker 3RV2011-1EA25, and the busbar adapter 8US1251-5DT11 — everything needed to snap onto a 60 mm busbar system and wire the motor branch. The overload release is thermal bimetallic (CLASS 10 trip class), and the short-circuit trip is magnetic — no separate overload relay to order. Auxiliary switch extension is supported (product extension auxiliary switch: Yes). The control circuit is 24 V DC (rated value 24... 24 V), which matches standard PLC output voltages and keeps the control wiring at SELV levels. Spring-loaded terminals on both the main and auxiliary/control circuits — no screw torque to verify, just strip and push. ## Mounting and clearance — busbar snap-on with cooling margins Fastening method is for snapping onto 60 mm busbar systems — no DIN rail required. Mounting position is vertical. Dimensions: 45 mm wide, 260 mm high, 155 mm deep — fits a standard S00 footprint. Clearance requirements for heat dissipation: 50 mm upwards, 20 mm forwards, 20 mm at the side, 10 mm downwards, 0 mm backwards. The 50 mm upward gap is the critical one — the thermal bimetallic overload needs that air path to track motor current correctly. ## Operating environment — temperature and humidity envelope Rated for operation from -20 °C to +60 °C with relative humidity 10 to 95 %. Storage and transport range is -50 °C to +80 °C. The temperature compensation is active across the full operating range — the bimetallic strip adjusts for ambient changes so the trip point stays accurate.","metaTitle":"Siemens 3RA2115-1EH15-1FB4 SIRIUS Direct Starter","metaDescription":"Siemens 3RA2115-1EH15-1FB4 SIRIUS direct online starter, size S00, 1.5 kW at 400 V AC-3, CLASS 10 trip, spring-loaded terminals, snaps onto 60 mm busbars.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"155 mm","Width":"45 mm","title":"3RA2115-1EH15-1FB4","Height":"260 mm","Upwards":"50 mm","Forwards":"20 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"20 mm","Rated Value":"24 ... 24 V","description":"Load feeder fuseless, Direct-on-line starting 400 V AC, Size S00 2.80...4.00 A 24 V DC Spring-type terminal for 60 mm busbar systems (also fulfills type of coordination 1) Type of coordination 2, Iq = 150 kA 1 NO (contactor) with diode (integrated)","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"for snapping onto 60 mm busbar systems","Mounting Position":"vertical","PROFIsafe protocol":"No","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Product Designation":"Direct (on-line) starter","Size Of Load Feeder":"S00","PROFINET IO protocol":"No","at 400 V rated value":"1 500 W","Design Of The Product":"for 60 mm busbars","For Main Current Circuit":"spring-loaded terminals","Temperature Compensation":"-20 ... +60 °C","Of The Supplied Contactor":"3RT2015-2FB41","Of The Supplied Link Module":"3RA2911-2AA00","Size Of The Circuit-Breaker":"S00","at AC-3 rated value maximum":"690 V","Design Of The Overload Release":"thermal (bimetallic)","Of The Supplied Busbar Adapter":"8US1251-5DT11","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2011-1EA25","degree of protection NEMA rating":"other","For Auxiliary And Control Circuit":"spring-loaded terminals","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","protocol is supported AS-Interface protocol":"No","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"6g / 11 ms","Type Of Voltage Of The Control Supply Voltage":"DC","at 400 V according to IEC 60947-4-1 rated value":"150 000 A","operational current at AC-3 at 400 V rated value":"3.6 A","Mechanical Service Life (Switching Cycles) Of Contactor Typical":"30 000 000","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"2.8 ... 4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/3e856ed0a3ec977fbba9c8a85d72d25d.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=552245&mlfb=3RA2115-1EH15-1FB4"},"ai":{"faq":[{"question":"What is 3RA2115-1EH15-1FB4's listed depth (155 mm) on this Motor Starters line?","answer":"The depth is 155 mm. Width is 45 mm, height is 260 mm — standard S00 footprint for busbar-mounted starters."},{"question":"What compliance documentation does Siemens provide for 3RA2115-1EH15-1FB4?","answer":"The degree of protection NEMA rating is listed as 'other' — this is a busbar-mounted starter for enclosed panel use. Standard Siemens documentation includes CE, UKCA, and EAC declarations for the SIRIUS family; specific UL/CSA listings depend on the configured combination and should be confirmed against the BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2115-1EH15-1FB4","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/3RA2115-1EH15-1FB4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}