{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1031-4FB15-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1031-4FB15-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RV1031-4FB15-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4FB15-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, motor protection circuit breaker, 3RV1031-4FB15-ZW97, 40 A continuous, CLASS 20, 50 kA at 400 V AC, phase failure detection, screw terminals, DIN rail snap-on.","salesMarkdown":"Rated 18.5 kW at 400 V AC with a breaking capacity of 50 kA at 400 V and 100 kA at 240 V, this breaker handles fault currents up to those levels without cascading upstream — critical for panel SCCR compliance under IEC 60947-2. Snaps onto 35 mm DIN rail per DIN EN 50022; screw and snap-on fastening method means no tools needed for the rail, but the main circuit terminals are screw-type with box terminals accepting 2x (0.75... 25 mm²) stranded or 1x (0.75 … 35 mm²) — expect a screwdriver for the power side. Auxiliary and control circuit terminals are also screw-type, accepting 2x (0.5... 1.5 mm²) solid or 2x (0.75... 2.5 mm²) solid — keep the strip length clean to avoid stray strands under the clamp. Dimensions are 55 mm wide by 140 mm tall by 149 mm deep — the 149 mm depth means it projects nearly 15 cm from the DIN rail, so check gland plate clearance if the enclosure is shallow. RoHS compliance date is July 1, 2006 — the part meets the original RoHS directive, and the substance prohibition date is on record for compliance documentation. ## Ratings and Environment Shock resistance rated at 25 g for 11 ms — survives most panel vibration and transport bumps without nuisance tripping. Auxiliary switch is transverse design and the product extension supports an auxiliary switch — the transverse orientation means the switch block mounts alongside the breaker body, not stacked on top. Maximum operating frequency in AC-3 duty is 15 operations per hour — fine for manual or infrequent motor starts, not for high-cycle jogging applications.","metaTitle":"Siemens 3RV1031-4FB15-ZW97 SIRIUS Motor Protection Circuit B","metaDescription":"Siemens SIRIUS 3RV1031-4FB15-ZW97 motor protection circuit breaker, 40 A continuous, CLASS 20, 50 kA at 400 V, phase failure detection, active production, DIN rail mount. Sourced t","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":"18.5 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":"29 W","Substance Prohibitance (Date)":"07/01/2006","Continuous Current Rated Value":"40 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":"9.7 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":"40 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":"28 ... 40 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=118381&mlfb=3RV1031-4FB15-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4FB15-ZW97/alternatives.json"},"ai":{"faq":[{"question":"Does 3RV1031-4FB15-ZW97 detect phase failure?","answer":"Yes, phase failure detection is built in — it trips on a lost phase to prevent single-phasing motor damage."},{"question":"What is the trip class of this circuit breaker?","answer":"CLASS 20, allowing up to 20 seconds of overload before tripping, matched to standard motor starting profiles."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1031-4FB15-ZW97","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/3RV1031-4FB15-ZW97 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}}