{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2046-1EB0-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2046-1EB0-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RB2046-1EB0-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2046-1EB0-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RB2046-1EB0-ZX95 solid-state overload relay, 3-pole, Class 10E trip, screw-type terminals, ATEX Ex II (2) GD, 70 x 106 x 124 mm.","salesMarkdown":"The Siemens 3RB2046-1EB0-ZX95 is a SIRIUS solid-state overload relay for three-phase motor protection. The ATEX Ex II (2) GD approval means it can be used in the control circuit of a motor driving equipment in a gas or dust hazardous zone (the relay itself sits in the safe area, but its output contacts are part of the safety chain). Mounts directly onto a contactor via the contactor mounting fastening method — no DIN rail needed, which saves panel width. The body is 70 mm wide, 106 mm tall, and 124 mm deep, so it overhangs the contactor footprint slightly. Wire the main circuit with screw-type terminals accepting solid conductors from 0.5 to 4 mm² (or 2x 0.5 to 2.5 mm²) and stranded from 10 to 70 mm² (or 2x 10 to 50 mm²). For the auxiliary/control circuit, screw terminals accept 2x AWG 20 to 14. The auxiliary contact ratings are 2 A at 24 V, 4 A at 120 V, and 3 A at 230 V — enough to drive a PLC input or a contactor coil directly. ## Environmental and electrical robustness Handles 100 % relative humidity (condensing) — fine for unheated enclosures in humid plants. Shock resistance is 15g for 11 ms, and surge voltage withstand is 8 kV. EMC burst immunity meets IEC 61000-4-4 severity level 3: 2 kV on power ports, 1 kV on signal ports. That means it won't false-trip from nearby contactor switching or VFD PWM noise on a typical industrial line.","metaTitle":"Siemens 3RB2046-1EB0-ZX95 SIRIUS Solid-State Overload Relay,","metaDescription":"Siemens SIRIUS 3RB2046-1EB0-ZX95 solid-state overload relay, 3-pole, Class 10E, screw terminals, ATEX Ex II (2) GD. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Depth":"124 mm","Solid":"0.5 ... 4 mm², 2x (0.5 ... 2.5 mm²)","Width":"70 mm","Height":"106 mm","Upwards":"0 mm","at 24 V":"2 A","at 60 V":"0.55 A","Forwards":"0 mm","Per Pole":"0.02 W","Stranded":"2x (10 ... 50 mm²), 10 ... 70 mm²","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","During Storage":"-40 ... +80 °C","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"Contactor mounting","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 Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"07/01/2006","at AWG cables for main contacts":"2x (10 ... 1/0), 1x (10 ... 2/0)","For Auxiliary And Control Circuit":"screw-type terminals","Relative Humidity During Operation":"100 %","Surge Voltage Resistance Rated Value":"8 kV","at AWG cables for auxiliary contacts":"2x (20 ... 14)","due to burst according to IEC 61000-4-4":"2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3","reference code according to IEC 81346-2":"F","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","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","Size Of Contactor Can Be Combined Company-Specific":"S3","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 6 A","insulation voltage with degree of pollution 3 at AC rated value":"1 000 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","power loss [W] for rated value of the current at AC in hot operating state":"0.05 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"25 ... 100 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=282565&mlfb=3RB2046-1EB0-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2046-1EB0-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this overload relay?","answer":"It is a 3-pole solid-state overload relay with Class 10E trip. The auxiliary contacts are rated 2 A at 24 V, 4 A at 120 V, and 3 A at 230 V. It has ATEX Ex II (2) GD approval for use in hazardous-area motor control circuits. Operating temperature range is -25 to +60 °C."},{"question":"What wire sizes does it accept for the main circuit?","answer":"Screw-type terminals accept solid conductors 0.5 to 4 mm² (or 2x 0.5 to 2.5 mm²) and stranded conductors 10 to 70 mm² (or 2x 10 to 50 mm²). AWG equivalents are 2x 10 to 1/0 for stranded main conductors."},{"question":"Does it have ATEX certification?","answer":"Yes, it carries PTB 06 ATEX 3001 Ex II (2) GD certification, meaning it is approved for use in the control circuit of motors in potentially explosive gas and dust atmospheres (the relay itself is installed in the safe area)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2046-1EB0-ZX95","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/3RB2046-1EB0-ZX95 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}}