{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7025-1AL20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7025-1AL20","canonicalUrl":"https://aoctrl.com/siemens/3RT7025-1AL20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7025-1AL20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT7025-1AL20, S0 contactor, 3-pole, 690 V AC-3 max, screw terminals, 45 mm wide, IP20 finger-safe front and terminals.","salesMarkdown":"The Siemens 3RT7025-1AL20 is a 3-pole S0-frame contactor from the SIRIUS family, rated for AC-3 switching up to 690 V. The AC-3 rating at 690 V maximum means it can switch three-phase motor loads at that line voltage — relevant for 690 V industrial networks common in mining, marine, and heavy machinery. The 3-pole, 3-NO main contact arrangement is the standard for three-phase motor starting; no NC contacts on the mains side. IP20 on the front and at the terminals means finger-safe touch protection — no special sealing against dust or moisture, so this is a panel-inside part, not for washdown or outdoor duty. Pollution degree 3 confirms it's rated for conductive environments inside an enclosure. That saves a relay interface on the control side. Coil draw is 0.72 W on pickup, dropping to 0.24 W sealed — low enough that a 24 VDC power supply driving a bank of these won't sag on inrush. The AC control supply voltage type means the coil is designed for AC line, not DC; verify your control voltage matches before wiring. ## Integration notes That covers most panel layouts without derating, but side-by-side mounting is allowed if you need dense packing. Screw terminals on both main and control circuits accept 2x 0.5–2.5 mm² solid or stranded, or 2x 0.5–1.5 mm² with ferrules. Strip length and torque spec follow standard Siemens SIRIUS practice — no special tooling needed. For type 2 coordination (no-weld fault protection), the required upstream fuse is 25 A gL/gG; for type 1 (allow-weld), 63 A gL/gG. That's the fuse size to spec on the line side if you're coordinating with a motor starter or soft starter.","metaTitle":"Siemens 3RT7025-1AL20 Contactor, S0, 3-Pole, 690V AC-3, IP20","metaDescription":"Siemens SIRIUS 3RT7025-1AL20 3-pole contactor, S0 frame, 690V AC-3 max, 45mm wide, IP20 finger-safe. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"91 mm","Width":"45 mm","Height":"85.5 mm","at 50 Hz":"0.24","at 60 Hz":"0.24","On The Front":"IP20","During Storage":"-25 ... +70 °C","Of The Terminal":"IP20","at AC-3 maximum":"800 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","During Operation":"-10 ... +55 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","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":"S0","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Degree Of Pollution":"3","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"230 V","at 60 Hz rated value":"230 V","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","Insulation Voltage Rated Value":"690 V","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","With Type Of Assignment 2 Required":"gL/gG NH 3NA: 25 A","closing power of magnet coil at DC":"0.72 W","holding power of magnet coil at DC":"0.24 W","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gL/gG NH 3NA: 63 A","shock resistance with sine pulse at AC":"12.5g / 5 ms, 7.8g / 10 ms","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"acceptability for PLC control (17 V, 5 mA)","Type Of Voltage Of The Control Supply Voltage":"AC","operating voltage at AC-3 rated value maximum":"690 V","operational current at DC-13 at 220 V rated value":"0.3 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Required Spacing With Side-By-Side Mounting At The Side":"0 mm","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Connectable Conductor Cross-Section For Main Contacts Finely Stranded With Core End Processing":"6 mm²","Connectable Conductor Cross-Section For Auxiliary Contacts Finely Stranded With Core End Processing":"0.5 ... 2.5 mm²"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f442db3393fc7b4e5bdf6ecb4d82fe9f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533924&mlfb=3RT7025-1AL20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT7025-1AL20/alternatives.json"},"ai":{"faq":[{"question":"Will the 3RT7025-1AL20 drop into a panel spec'd for a 3RT6026-1AN20?","answer":"Both are S0-frame contactors on 45 mm width, so the physical footprint and DIN rail clip are the same. Verify the coil voltage — the 3RT7025-1AL20 uses AC control supply, while the 3RT6026-1AN20 may differ. The auxiliary contact arrangement and terminal layout are identical within the SIRIUS S0 family, so no rewiring of the main power circuit is needed if the coil voltage matches."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7025-1AL20","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/3RT7025-1AL20 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}}