{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2315-8XB30-2BB4-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2315-8XB30-2BB4-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RA2315-8XB30-2BB4-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2315-8XB30-2BB4-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing contactor assembly, size S00, 3RT2015-2BB42 contactors, 3 kW at 400 V AC-3, spring-loaded terminals, 35 mm DIN rail.","salesMarkdown":"## Reversing contactor assembly for motor direction control The Siemens 3RA2315-8XB30-2BB4-ZX95 is a SIRIUS reversing contactor assembly — two contactors mechanically interlocked so only one can close at a time, which is exactly what you need when a motor has to run forward and reverse without a mechanical interlock on the load side. ## Motor ratings and duty cycles that decide the fit AC-4 generates more arc energy than AC-3 because the contacts break current with the motor still under load, so the rating is lower — don't spec this on the AC-3 number if your application reverses under load. ## Termination and panel integration Both the main current circuit and the auxiliary/control circuit use spring-loaded terminals — no screw-torque check needed, just strip and push. Keep at least 6 mm clearance upwards, forwards, downwards, and to the sides — backwards clearance is 0 mm, so it can sit flush against the back panel. The contactor size is S00, which is Siemens' smallest frame — 90 mm wide, 84 mm high, 83 mm deep. That's tight enough to fit in a shallow enclosure or a crowded DIN rail next to a PLC. ## Environmental limits and mechanical endurance If your panel sits in an unheated warehouse or a hot compressor room, the -25 °C floor and +60 °C ceiling cover most industrial environments. The contactor has a typical mechanical life of 10,000,000 operations — that's the mechanical endurance of the contactor itself, not the electrical life under load. ## Sourcing and lifecycle — current production, quoted to order The coil is 24 V DC, spring-loaded terminals. If your control voltage is different, the 3RT2015-2BB42 contactors can be swapped for the appropriate coil-voltage variant — the reversing assembly kit and frame are the same.","metaTitle":"Siemens 3RA2315-8XB30-2BB4-ZX95 SIRIUS Reversing Contactor","metaDescription":"Siemens 3RA2315-8XB30-2BB4-ZX95 SIRIUS reversing contactor assembly, size S00, 3 kW at 400 V AC-3. Spring-loaded terminals, 35 mm DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"83 mm","Solid":"2x (0.5 ... 4 mm²)","Width":"90 mm","at AC":"10,5g / 5 ms, 6,6g / 10 ms","at DC":"10,5g / 5 ms, 6,6g / 10 ms","title":"3RA2315-8XB30-2BB4-ZX95","Height":"84 mm","Upwards":"6 mm","Forwards":"6 mm","Backwards":"0 mm","Downwards":"6 mm","At The Side":"6 mm","description":"REV. COMB. AC3, 3KW/400V DC24V 3-POLE, SZ S00 SPRING-LOADED TERMINAL ELECTR. AND MECH. INTERLOCK","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","Size Of Contactor":"S00","Solid Or Stranded":"2x (0.5 ... 2.5 mm²)","at DC rated value":"24 V","Product Brand Name":"SIRIUS","Product Designation":"Reversing contactor assembly","Of Contactor Typical":"10 000 000","at 400 V rated value":"3 kW","at 480 V rated value":"4.8 A","at 500 V rated value":"3 kW","at 600 V rated value":"6.1 A","at 690 V rated value":"4 kW","For Main Current Circuit":"spring-loaded terminals","at 200/208 V rated value":"1.5 hp","at 220/230 V rated value":"2 hp","at 460/480 V rated value":"3 hp","at 575/600 V rated value":"5 hp","1 Of The Supplied Contactor":"3RT2015-2BB42","2 Of The Supplied Contactor":"3RT2015-2BB42","at AC-4 at 400 V rated value":"3 kW","Substance Prohibitance (Date)":"10/01/2009","at AWG cables for main contacts":"1x (20 ... 12)","of the supplied RH assembly kit":"3RA2913-2AA2","For Auxiliary And Control Circuit":"spring-loaded terminals","Product Extension Auxiliary Switch":"Yes","Product Function Bus Communication":"Yes","With Type Of Assignment 2 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 20 A","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"4 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","operating frequency at AC-3 maximum":"750 1/h","With Type Of Coordination 1 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 35 A","at AWG cables for auxiliary contacts":"2x (20 ... 14)","number of NC contacts for main contacts":"0","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 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"< 1 error per 100 million operating cycles","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 1.5 mm²)","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"75 %","Type Of Voltage Of The Control Supply Voltage":"DC","operating voltage at AC-3 rated value maximum":"690 V","contact rating of auxiliary contacts according to UL":"A600 / Q600","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","product function control circuit interface with IO link":"No","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/01510c491657bd12b008793f99a28219.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=239154&mlfb=3RA2315-8XB30-2BB4-ZX95"},"ai":{"faq":[{"question":"What is the AC-4 rating for this reversing contactor assembly?","answer":"The AC-4 rating is 3 kW at 400 V. AC-4 applies when the motor is reversed or plugged while still under load, which generates more arc energy than AC-3 starting duty. Use this number, not the AC-3 rating, if your application reverses under load."},{"question":"What compliance documentation is available for 3RA2315-8XB30-2BB4-ZX95?","answer":"Standard Siemens documentation includes the declaration of conformity and product certificate — available on request with your RFQ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2315-8XB30-2BB4-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/3RA2315-8XB30-2BB4-ZX95 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}}