{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1627-1AG61","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1627-1AG61","canonicalUrl":"https://aoctrl.com/siemens/3RT1627-1AG61","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1627-1AG61","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1627-1AG61 capacitor contactor, AC-6 duty, 35 A, 100 V AC 50/60 Hz coil, 3 NO main contacts, 1 NO auxiliary contact, screw terminals, IP20 front, DIN rail mount.","salesMarkdown":"The Siemens 3RT1627-1AG61 is a SIRIUS capacitor contactor built for AC-6 duty — the utilization category that covers switching of capacitor banks for power factor correction. Rated at 35 A and 25 kVAr at 400 V, it handles the high inrush currents and repetitive switching that capacitor loads demand. This part is flagged as a phased-out product. The manufacturer's stated successor is the SIRIUS 3RT2 series — the current-generation capacitor contactor that replaces this unit. No last-time-buy date is recorded in the available documentation. The AC-6 rating is the key selection parameter here. Standard power contactors (AC-3 or AC-1) can weld their contacts on capacitor inrush — the 3RT1627-1AG61 is specifically designed with higher making capacity to survive that surge. The 25 kVAr at 400 V figure tells you the maximum capacitor bank size it can switch at that line voltage; size up if your bank exceeds that reactive power. The coil is 100 V AC, not a common 110 V or 230 V control voltage — verify your control transformer matches before wiring. Side-by-side mounting is permitted with no required spacing, which saves rail space in dense panels. ## Environmental range and wiring Both main and auxiliary circuits use screw-type terminals — no spring-cage here, so factor in screwdriver torque time if you're used to push-in terminations on newer gear. The 1 NO auxiliary contact is built in; if you need more, an auxiliary switch block can be added on top without losing the IP20 front rating.","metaTitle":"Siemens 3RT1627-1AG61 Capacitor Contactor, 35 A, AC-6, 100 V","metaDescription":"Siemens SIRIUS 3RT1627-1AG61 capacitor contactor for AC-6 switching, 35 A rated, 100 V AC coil. Phased-out; successor available. Quoted to order. IP20 front.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"135 mm","Width":"45 mm","Height":"100 mm","Rated Value":"35 A","On The Front":"IP20","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","Type of voltage":"AC","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Protection class IP":"IP20","at 50 Hz rated value":"100 ... 100 V","at 60 Hz rated value":"100 ... 110 V","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","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","For Auxiliary And Control Current Circuit":"screw-type terminals","Number of NC contacts for auxiliary contacts":"0","Number of NO contacts for auxiliary contacts":"1","Identification number and letter for switching elements":"1","Supply voltage frequency for auxiliary and control current circuit rated value":"50 ... 60 Hz"}},"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=18864&mlfb=3RT1627-1AG61","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1627-1AG61/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to the 3RT1627-1AG61?","answer":"The closest peer is the 3RT1023-1AL20, a SIRIUS S0 power contactor with similar 45 mm width and DIN rail mounting. However, the 3RT1023-1AL20 is a general-purpose AC-3 contactor rated 40 A at 40 °C — it lacks the AC-6 capacitor-switching rating and the 25 kVAr / 400 V specification. For a direct capacitor-duty replacement, the official 3RT2 series successor is the correct choice; the 3RT1023-1AL20 would require derating and may not survive capacitor inrush."},{"question":"Will the 3RT1627-1AG61 drop into a panel specified for the 3RT1023-1AL20?","answer":"Yes, mechanically. Both share the same 45 mm width and snap onto 35 mm DIN rail per EN 50022. The 3RT1627-1AG61 is deeper at 135 mm versus 91 mm for the 3RT1023-1AL20, so check enclosure depth clearance before swapping. Wiring is screw-to-screw, so no terminal adapter needed."},{"question":"Where can I buy the 3RT1627-1AG61?","answer":"This unit is sourced to order through independent industrial-automation distribution. Submit an RFQ for current availability and pricing — stock and lead time are confirmed at quote time. No authorized-distributor exclusivity applies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1627-1AG61","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/3RT1627-1AG61 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}}