{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1031-4EB15-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1031-4EB15-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RV1031-4EB15-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4EB15-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1031-4EB15-ZX95, 32 A continuous, CLASS 20, 50 kA at 400 V AC, screw-type terminals, IP20 front.","salesMarkdown":"The Siemens 3RV1031-4EB15-ZX95 is a SIRIUS motor protection circuit breaker designed for motor protection, rated at 32 A continuous current with a CLASS 20 trip characteristic — meaning it allows a 20-second overload at 600% of the set current before tripping, which is the standard for standard-duty induction motors (pumps, fans, compressors) that don't need a faster trip curve. Breaking capacity hits 100 kA at 240 V AC, 50 kA at 400 V AC, 10 kA at 500 V AC, and 4 kA at 690 V AC — so at 400 V it clears faults up to 50 kA without cascading upstream, which is the typical SCCR requirement for a 400 V motor branch circuit in industrial panels. It detects phase failure (so a lost phase won't let the motor single-phase to destruction) but does not include ground-fault detection — that's handled separately by a GFCI or residual-current device downstream. Width is 55 mm, height 140 mm, depth 149 mm — a standard 3-module footprint on the rail, leaving room for adjacent contactors or overloads. Main circuit terminals are screw-type with box terminals, accepting solid conductors 2x (0.5…1.5 mm²) and 2x (0.75…2.5 mm²), or stranded 2x (0.75…25 mm²) and 1x (0.75…35 mm²) — covers most motor feeder wire sizes up to 35 mm². Auxiliary and control circuit terminals are also screw-type, and the breaker accepts an auxiliary switch (product extension auxiliary switch is available) — transverse design, so it mounts alongside the main body without extra depth. Clearance: 0 mm backwards and 0 mm at the side — meaning it can be butted directly against other devices on the rail without spacing, which saves panel width. ## Environmental and approvals Front protection class is IP20 — safe for finger contact in a closed panel; the body itself is not sealed for washdown (no IP65/67 rating here). Shock resistance rated at 25 g for 11 ms — suitable for mounting on machinery that sees vibration, like a pump skid or conveyor drive. RoHS compliance date is July 1, 2006 — the part meets EU RoHS requirements. Power dissipation in hot operating state is 19 W — factor that into panel thermal calculations if the enclosure is sealed.","metaTitle":"Siemens 3RV1031-4EB15-ZX95 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens 3RV1031-4EB15-ZX95 SIRIUS motor protection circuit breaker, 32 A continuous, CLASS 20 trip, 50 kA SCCR at 400 V AC. Screw terminals, IP20 front. Active production; sourced","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"149 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Width":"55 mm","Height":"140 mm","at 24 V":"1 A","at 60 V":"0.15 A","Stranded":"2x (0.75 ... 25 mm²), 1x (0.75 … 35 mm²)","at 230 V":"0.5 A","Backwards":"0 mm","Trip Class":"CLASS 20","At The Side":"0 mm","Rated Value":"690 V","During Storage":"-50 ... +80 °C","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-50 ... +80 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Shock Resistance":"25g / 11 ms","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"circuit breaker","at 400 V rated value":"15 kW","Design Of The Product":"for motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals with box terminals","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"50 kA","at AC at 500 V rated value":"10 kA","at AC at 690 V rated value":"4 kA","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"19 W","Substance Prohibitance (Date)":"07/01/2006","Continuous Current Rated Value":"32 A","Design Of The Auxiliary Switch":"transverse","at AWG cables for main contacts":"2x (18 ... 2), 1x (18 ... 2)","protection class IP on the front":"IP20","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","operating frequency at AC-3 maximum":"15 1/h","Surge Voltage Resistance Rated Value":"6 000 V","at AWG cables for auxiliary contacts":"2x (18 ... 14)","at AC in hot operating state per pole":"6.3 W","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","Touch Protection Against Electrical Shock":"finger-safe","number of CO contacts for auxiliary contacts":"0","operational current at AC-3 at 400 V rated value":"32 A","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Design Of The Overcurrent Release And Short-Circuit Release":"thermomagnetic","Arrangement Of Electrical Connectors For Main Current Circuit":"front side","Product Component Removable Terminal For Auxiliary And Control Circuit":"No","Mechanical Service Life (Switching Cycles) Of The Main Contacts Typical":"50 000","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"22 ... 32 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=384700&mlfb=3RV1031-4EB15-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4EB15-ZX95/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1031-4EB15-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/3RV1031-4EB15-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}}