{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2065-1GC2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2065-1GC2","canonicalUrl":"https://aoctrl.com/siemens/3RB2065-1GC2","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2065-1GC2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2065-1GC2, CLASS 10E, ATEX Ex II (2) GD, for contactor mounting or stand-alone installation, IP00 front.","salesMarkdown":"The Siemens SIRIUS 3RB2065-1GC2 is a solid-state overload relay, not a bimetallic — no thermal fatigue, no ambient tracking drift. It protects motors against phase loss, overload, and asymmetrical load conditions in the main current circuit. Mounts directly on a contactor or as a stand-alone unit on the DIN rail. The main circuit connects via busbar link; auxiliary contacts are screw terminals accepting 0.5–4 mm² solid or 2× 0.5–2.5 mm² stranded. Auxiliary contact ratings cover the common control voltages you'll find in a panel: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V AC. The 120 V / 4 A rating is the one to size your PLC or relay interface against — it's the highest current point on the curve. The main circuit is rated for AC-3 duty up to 1 000 V, which covers 400 V and 690 V motor feeders without derating. Insulation coordination is Pollution Degree 3 at 1 000 V, so it's safe for ungrounded IT systems and industrial environments with conductive dust. EMC immunity is built in: 2 kV burst on power ports, 1 kV on signal ports (IEC 61000-4-4 severity 3), and 8 kV surge. That's enough for most machine-level panels without external suppression — but if you're on a long cable run near a VFD output, keep the signal wiring separate. Operates from -25 to +60 °C; stores or ships from -40 to +80 °C. 100 % relative humidity during operation is allowed — condensation is fine as long as it's not actively dripping. Shock rated at 15 g / 11 ms, so it survives forklift drops and machine vibration. Clearances: 0 mm to the sides and top/bottom when mounted on a contactor; 6 mm lateral spacing if stand-alone. Front protection is IP00 — it's intended for enclosed panels, not open washdown zones. Dimensions: 145 mm wide, 147 mm high, 156 mm deep. That depth is the main envelope — check your gland plate clearance if you're retrofitting into a shallow enclosure originally built for a bimetal relay. ATEX certified for Ex II (2) GD. The PTB 06 ATEX 3001 certificate covers the relay.","metaTitle":"Siemens 3RB2065-1GC2 SIRIUS Solid-State Overload Relay, CLAS","metaDescription":"Siemens SIRIUS 3RB2065-1GC2 solid-state overload relay, CLASS 10E trip class, ATEX Ex II (2) GD, contactor mounting. Sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"156 mm","Solid":"0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²)","Width":"145 mm","Height":"147 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":"IP00","Mounting type":"Contactor mounting/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":"busbar connection","at AC-3 rated value maximum":"1 000 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":"8 kV","Reference code acc. to DIN EN 81346-2":"F","at AC in hot operating state per pole":"0.02 W","With Degree Of Pollution 3 Rated Value":"1 000 V","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","Electrostatic discharge acc. to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Size of contactor can be combined company-specific":"S10, S12","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":"55 ... 250 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=261536&mlfb=3RB2065-1GC2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2065-1GC2/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2065-1GC2","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/3RB2065-1GC2 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}}