{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA2335-8XB30-1AP6","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA2335-8XB30-1AP6","canonicalUrl":"https://aoctrl.com/siemens/3RA2335-8XB30-1AP6","factsUrl":"https://aoctrl.com/api/mcp/products/3RA2335-8XB30-1AP6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS reversing contactor assembly, size S2, 3RA2335-8XB30-1AP6, 18.5 kW at 400 V AC-3, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"The Siemens 3RA2335-8XB30-1AP6 is a SIRIUS reversing contactor assembly — a pre-wired pair of contactors with mechanical interlock that reverses a three-phase motor's direction without external logic. It ships with two 3RT2035-1AG20 contactors already mounted and interlocked on a common base plate. The assembly is rated 18.5 kW at 400 V AC-3, 22 kW at 500 V, and 22 kW at 690 V, so it covers standard 400 V and 690 V industrial motor loads up to that power band. At 480 V it carries 40 A; at 600 V it carries 41 A. For North American duty, it's rated 15 hp at 220/230 V, 30 hp at 460/480 V, and 40 hp at 575/600 V. The assembly occupies a S2 contactor footprint — 141 mm high, 120 mm wide, 130 mm deep — and mounts via screw or snap-on onto 35 mm DIN rail. Mechanical switching frequency is rated at 1 000 cycles per hour for AC-3 and AC-3e duty. ## Wiring and integration That covers most motor feeder cables up to around 35 mm² for the line and load sides, with the larger 50 mm² terminal available for a common bus or feed-through. The assembly includes two instantaneous auxiliary contacts. Clearance distances: 10 mm upwards, forwards, downwards, and to the side; 0 mm backwards (the DIN rail side). These are the minimum air gaps to adjacent metalwork or other devices — useful when calculating panel fill factor. The assembly is rated for vibration at 18.5 g for 5 ms and 11.6 g for 10 ms (AC sine), which is typical for industrial panel mounting on a machine frame.","metaTitle":"Siemens 3RA2335-8XB30-1AP6 SIRIUS Reversing Contactor Assemb","metaDescription":"Siemens SIRIUS reversing contactor assembly 3RA2335-8XB30-1AP6, rated 18.5 kW at 400 V AC-3. Current production. Screw/snap-on 35 mm DIN rail. 130 mm depth. RFQ for pricing and lea","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Starters"],"specifications":{"Depth":"130 mm","Solid":"2x (1 ... 35 mm²), 1x (1 ... 50 mm²)","Width":"120 mm","at AC":"18.5g / 5 ms, 11.6g / 10 ms","title":"3RA2335-8XB30-1AP6","Height":"141 mm","Upwards":"10 mm","Forwards":"10 mm","at 50 Hz":"0.36","at 60 Hz":"0.39","Backwards":"0 mm","Downwards":"10 mm","At The Side":"10 mm","description":"reversing contactor assembly, AC-3e/AC-3, 41 A, 18.5 kW / 400 V, 3-pole, 220 V AC, 50 Hz / 240 V, 60 Hz, screw terminal, electrical and mechanical interlock, auxiliary contacts: 2 x 1 NO","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-type terminals","at AC-3 maximum":"1 000 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm DIN rail","at AC-3e maximum":"1 000 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":"S2","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Reversing contactor assembly","Of Contactor Typical":"10 000 000","at 400 V rated value":"18.5 kW","at 480 V rated value":"40 A","at 50 Hz rated value":"220 V","at 500 V rated value":"22 kW","at 60 Hz rated value":"240 V","at 600 V rated value":"41 A","at 690 V rated value":"22 kW","Instantaneous Contact":"2","For Main Current Circuit":"screw-type terminals","at 220/230 V rated value":"15 hp","at 460/480 V rated value":"30 hp","at 575/600 V rated value":"40 hp","Per Direction Of Rotation":"1","1 Of The Supplied Contactor":"3RT2035-1AG20","2 Of The Supplied Contactor":"3RT2035-1AG20","at AC-3 rated value maximum":"690 V","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"18.5 kW","Substance Prohibitance (Date)":"10/01/2014","of the supplied RS assembly kit":"3RA2933-2AA1","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","Product Function Bus Communication":"Yes","With Type Of Assignment 2 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 80 A","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG NH 3NA, DIAZED 5SB, NEOZED 5SE: 160 A","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 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), 2x (0.75 ... 2.5 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 %","protocol is supported AS-Interface protocol":"No","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","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":"$697.99","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b8954aabbbc0f8403753ec24f138fb1e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=697090&mlfb=3RA2335-8XB30-1AP6"},"ai":{"faq":[{"question":"What are the key ratings for this reversing contactor assembly?","answer":"It is rated 18.5 kW at 400 V AC-3, 22 kW at 500 V, and 22 kW at 690 V. For North American duty: 15 hp at 220/230 V, 30 hp at 460/480 V, and 40 hp at 575/600 V. Current ratings are 40 A at 480 V and 41 A at 600 V."},{"question":"What wire sizes does the main circuit accept?","answer":"Screw-type terminals accept solid conductors: 2x (1 to 35 mm²) and 1x (1 to 50 mm²) per phase. Coil terminals accept 0.5 to 2.5 mm² solid or stranded."},{"question":"Does this assembly come with contactors already installed?","answer":"Yes, it ships with two 3RT2035-1AG20 contactors pre-mounted and mechanically interlocked on the base plate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA2335-8XB30-1AP6","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/3RA2335-8XB30-1AP6 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}