{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2035-1QW1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2035-1QW1","canonicalUrl":"https://aoctrl.com/siemens/3RB2035-1QW1","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2035-1QW1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB2035-1QW1 solid-state overload relay, Class 10E trip, 55 mm width, IP20 front, ATEX Ex II (2) GD.","salesMarkdown":"It's the electronic alternative to a bimetal relay when you need tighter repeatability and a wider ambient compensation range. The straight-through transformer design means the power conductors pass through the relay body without looping; no separate current transformers to mount. Front protection is IP20 — safe against finger contact, but the relay needs to live inside an enclosure rated for the environment. The auxiliary contact ratings span 24 V / 2 A up to 230 V / 3 A — enough to switch a PLC input or a small contactor coil directly. ATEX approval PTB 06 ATEX 3001 Ex II (2) GD means it can be used in gas/dust hazardous zones as an associated apparatus — the relay itself sits in the safe area but protects motors in Zone 1/2 or 21/22. That's a differentiator vs. standard thermal overloads. ## Integration notes Depth 109 mm, height 92 mm. Solid conductor capacity 0.5–4 mm² single or 2× 0.5–2.5 mm². Side clearance 6 mm to adjacent devices; no extra spacing needed upwards/forwards/backwards (0 mm). That keeps the panel layout tight — you can stack it directly next to the contactor. Operating temperature -25 to +60 °C, storage/transport -40 to +80 °C. Shock rated 15g / 11 ms — survives shipping and moderate machine vibration. Relative humidity tolerance 100% (condensing), so condensation in an unheated cabinet won't cause false trips. EMC immunity: 2 kV burst on power ports (severity 3 per IEC 61000-4-4), 1 kV on signal ports, surge 6 kV. That's standard for industrial control panels — no extra filtering needed for most installations.","metaTitle":"Siemens 3RB2035-1QW1 SIRIUS Solid-State Overload Relay, Clas","metaDescription":"Siemens 3RB2035-1QW1 SIRIUS solid-state overload relay, Class 10E, 55mm wide, IP20 front, ATEX Ex II (2) GD. Sourced to order — request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"109 mm","Solid":"0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²)","Width":"55 mm","Height":"92 mm","Maximum":"2 000 m","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","at 110 V":"0.3 A","at 120 V":"4 A","at 125 V":"0.3 A","at 220 V":"0.11 A","at 230 V":"3 A","Backwards":"0 mm","Downwards":"0 mm","Trip class":"CLASS 10E","At The Side":"6 mm","On The Front":"IP20","Mounting type":"stand-alone installation","During Storage":"-40 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Shock resistance":"15g / 11 ms","Mounting position":"any","Product brand name":"SIRIUS","Type of protection":"PTB 06 ATEX 3001 Ex II (2) GD","Product designation":"solid-state overload relay","For Auxiliary Contacts":"0","For Main Current Circuit":"straight-through transformers","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"0.05 W","Relative humidity during operation":"100 %","due to burst acc. to IEC 61000-4-4":"2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3","Surge voltage resistance rated value":"6 kV","Reference code acc. to DIN EN 81346-2":"F","at AC in hot operating state per pole":"0.02 W","Finely Stranded With Core End Processing":"0.5 ... 2.5 mm², 2x (0.5 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (20 ... 14)","For Auxiliary And Control Current Circuit":"screw-type terminals","Number of NC contacts for auxiliary contacts":"1","Number of NO contacts for auxiliary contacts":"1","with degree of pollution 3 at AC rated value":"690 V","Electrostatic discharge acc. to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Size of contactor can be combined company-specific":"S2","due to conductor-earth surge acc. to IEC 61000-4-5":"2 kV (line to earth) corresponds to degree of severity 3","Removable Terminal For Auxiliary And Control Circuit":"Yes","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 6 A","Adjustable pick-up value current of the current-dependent overload release":"6 ... 25 A"}},"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=189788&mlfb=3RB2035-1QW1","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2035-1QW1/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does Siemens provide for 3RB2035-1QW1?","answer":"The relay carries ATEX approval PTB 06 ATEX 3001 Ex II (2) GD for gas/dust hazardous zones. EMC immunity is specified per IEC 61000-4-4 (burst) and surge resistance at 6 kV. Standard Siemens documentation includes RoHS and REACH declarations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2035-1QW1","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/3RB2035-1QW1 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}}