{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT7025-1AN20","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT7025-1AN20","canonicalUrl":"https://aoctrl.com/siemens/3RT7025-1AN20","factsUrl":"https://aoctrl.com/api/mcp/products/3RT7025-1AN20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT7025-1AN20, 3-pole contactor, S0 size, AC-3 rated 690 V maximum, screw terminals, IP20.","salesMarkdown":"The Siemens 3RT7025-1AN20 is a 3-pole SIRIUS contactor in the S0 frame size, rated for AC-3 switching duty up to 690 V. It carries three normally-open main contacts and uses screw-type terminals for both the main and auxiliary circuits. The IP20 finger-safe enclosure on the front and terminals suits it for panel-mount installations where personnel touch the front face during commissioning or maintenance. The S0 footprint — 45 mm wide, 85.5 mm tall, 91 mm deep — fits a single DIN-rail module pitch, so it lines up cleanly alongside other S0 accessories like overload relays and auxiliary contact blocks. Side-by-side mounting is supported, which simplifies multi-contactor motor starter assemblies in a compact panel. The AC-3 rated voltage maximum of 690 V covers most 400 V and 690 V motor circuits in industrial distribution. For short-circuit protection, Type 1 coordination calls for a 63 A gL/gG fuse (3NA series), while Type 2 coordination requires a 25 A fuse — this matters when you're coordinating with upstream protection devices to minimize downstream damage on a fault. ## Coil and switching performance The DC magnet coil draws 0.72 W during closing and holds at 0.24 W — a low holding power that reduces heat buildup inside the enclosure. Maximum switching frequency is 800 operations per hour under AC-3 duty, dropping to 250 operations per hour for AC-4 (plugging/inching) applications. For vibration environments, the contactor withstands 12.5g for 5 ms and 7.8g for 10 ms sine-pulse shock. ## Environmental and wiring specs Terminals accept solid or stranded wire: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), also fine-stranded with ferrule.","metaTitle":"Siemens 3RT7025-1AN20 SIRIUS Contactor, 3-Pole, AC-3 690V, S","metaDescription":"Siemens 3RT7025-1AN20 SIRIUS contactor, 3-pole, AC-3 rated 690V max, S0 frame. Active production. Screw terminals, IP20. DIN-rail mount. Sourced to order.","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","at AC-3e maximum":"800 1/h","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":"220 V","at 60 Hz rated value":"220 V","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-3 rated value maximum":"690 V","at AC-3e rated value maximum":"690 V","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","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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1533930&mlfb=3RT7025-1AN20","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT7025-1AN20/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum AC-3 voltage rating?","answer":"The AC-3 rated voltage maximum is 690 V, matching the insulation voltage rated value of 690 V."},{"question":"Does this contactor support side-by-side mounting?","answer":"Yes, side-by-side mounting is supported, which allows multiple contactors to be ganged on the same DIN rail without spacing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT7025-1AN20","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/3RT7025-1AN20 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}}