{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2125-0JA23-0AP6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2125-0JA23-0AP6","canonicalUrl":"https://aoctrl.com/siemens/3RA2125-0JA23-0AP6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2125-0JA23-0AP6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS non-fused motor starter 3RA2, direct starter, size S0, CLASS 10, 250 W at 400 V, 176-242 V coil at 50 Hz, snap-on DIN rail.","salesMarkdown":"## What this SIRIUS 3RA2 starter pack delivers The Siemens 3RA2125-0JA23-0AP6 is a non-fused motor starter from the SIRIUS family, assembled as a direct starter in size S0. It ships as a matched set: the 3RT2023-1AP60 contactor, the 3RV2011-0JA15 circuit-breaker, and the 3RA2921-1AA00 link module — all pre-bussed and ready to snap onto a DIN rail. Rated at 250 W at 400 V, it handles small pump, fan, and conveyor motors in that power band. Coil voltage is 176-242 V at 50 Hz and 192-264 V at 60 Hz. The operating frequency is 50-60 Hz. Snap-mounted to DIN rail or screw-mounted with an additional push-in lug — the S0 frame gives you both options. Mounting position is vertical only. Clearance requirements: 30 mm upwards, 10 mm forwards, 10 mm downwards, 9 mm at the side, and 0 mm backwards. That 0 mm backwards clearance means it can sit flush against a back panel or enclosure wall, useful when packing multiple starters in a row. Dimensions: 45 mm wide, 193.1 mm high, 97.1 mm deep — the width is the tight axis for rail density. Main contact wiring accepts 1-10 mm² stranded or 2x (2.5-6 mm²), with AWG equivalents of 2x (16-12) and 2x (14-8). Strip length and ferrule sizing follow standard S0 practice. The auxiliary switch extension is available (product extension auxiliary switch: Yes), so you can add a spare contact block for status feedback without re-wiring the power circuit.","metaTitle":"Siemens 3RA2125-0JA23-0AP6 SIRIUS Motor Starter, CLASS 10","metaDescription":"Siemens 3RA2125-0JA23-0AP6 SIRIUS non-fused motor starter, 250 W at 400 V, CLASS 10, snap-on DIN rail. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"97.1 mm","Width":"45 mm","Height":"193.1 mm","Upwards":"30 mm","Forwards":"10 mm","Backwards":"0 mm","Downwards":"10 mm","Trip Class":"CLASS 10","At The Side":"9 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"Snap-mounted to DIN rail or screw-mounted with additional push-in lug","Mounting Position":"vertical","Product Brand Name":"SIRIUS","Type Of Assignment":"2","Degree Of Pollution":"3","Product Designation":"non-fused motor starter 3RA2","Size Of Load Feeder":"S0","at 400 V rated value":"250 W","at 50 Hz rated value":"176 ... 242 V","at 500 V rated value":"370 W","at 60 Hz rated value":"192 ... 264 V","at 690 V rated value":"550 W","Design Of The Product":"direct starter","at 575/600 V rated value":"0.5 hp","Of The Supplied Contactor":"3RT2023-1AP60","For Main Contacts Stranded":"1 ... 10 mm², 2x (2.5 ... 6 mm²)","Of The Supplied Link Module":"3RA2921-1AA00","Size Of The Circuit-Breaker":"S00","at AC-3 rated value maximum":"690 V","Design Of The Overload Release":"thermal (bimetallic)","Design Of The Switching Contact":"electromechanical","Operating Frequency Rated Value":"50 ... 60 Hz","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 8)","Design Of The Short-Circuit Trip":"magnetic","Of The Supplied Circuit-Breakers":"3RV2011-0JA15","Product Extension Auxiliary Switch":"Yes","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","Product Function Short Circuit Protection":"Yes","apparent holding power of magnet coil at AC":"7.2 VA","number of NC contacts for auxiliary contacts":"2","number of NO contacts for auxiliary contacts":"2","shock resistance according to IEC 60068-2-27":"6g / 11 ms","at 400 V according to IEC 60947-4-1 rated value":"153 000 A","operational current at AC-3 at 400 V rated value":"0.85 A","Type Of Electrical Connection For Main Current Circuit":"screw-type terminals","Inductive Power Factor With The Holding Power Of The Coil":"0.28","Mechanical Service Life (Switching Cycles) Of Contactor Typical":"10 000 000","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"13 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.7 ... 1 A","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"1 ... 6 mm²"}},"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=497634&mlfb=3RA2125-0JA23-0AP6","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RA2125-0JA23-0AP6/alternatives.json"},"ai":{"faq":[{"question":"How do I mount the 3RA2125-0JA23-0AP6 on a DIN rail?","answer":"It snaps onto a DIN rail — no tools needed. Alternatively, you can screw-mount it using an additional push-in lug. Mounting position must be vertical. Allow 30 mm clearance above, 10 mm in front, 10 mm below, and 9 mm to the side; zero clearance is needed behind the unit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2125-0JA23-0AP6","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/3RA2125-0JA23-0AP6 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}}