{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1031-4FA10-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1031-4FA10-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RV1031-4FA10-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4FA10-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV1031-4FA10-ZW97, 40 A continuous, Class 10 trip, 50 kA breaking capacity at 400 V AC, screw-type box terminals, snap-on 35 mm DIN rail.","salesMarkdown":"## Motor Protection Circuit Breaker, 40 A, Class 10 — SIRIUS 3RV1031-4FA10-ZW97 The Siemens 3RV1031-4FA10-ZW97 is a SIRIUS motor protection circuit breaker rated for 40 A continuous current with a Class 10 trip characteristic, meaning it protects standard induction motors during start-up by allowing up to 10 seconds of locked-rotor current before tripping — a common spec for pump, fan, and conveyor drives on 400 V lines. Ground fault detection is not included — this is a straight thermal-magnetic overload and short-circuit protector, not a GFCI. Rated short-circuit breaking capacity drops with system voltage: 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. At 400 V — the most common industrial distribution voltage — the 50 kA figure means this breaker can be applied on busways with up to 50 kA available fault current without needing a current-limiting backup fuse. The 690 V rating at 4 kA is marginal; if your panel feeds a 690 V motor and the SCCR at that bus exceeds 4 kA, you'll need a coordinated fuse ahead of it. Main circuit terminals are screw-type box terminals accepting 2x solid conductors from 0.75 to 16 mm², or 2x stranded from 0.75 to 25 mm² plus a single 0.75 to 35 mm². For AWG, that's 2x 18 to 2 AWG solid or stranded, and a single up to 2 AWG. Fine-stranded wire with ferrule is accepted at 2x 0.75 to 16 mm² or a single 0.75 to 25 mm². The auxiliary and control circuit uses separate screw-type terminals. The product extension for an auxiliary switch is supported, so you can add a signal contact for PLC feedback or status indication without modifying the breaker body. Dimensions are 55 mm wide, 140 mm high, 149 mm deep — a standard three-pole SIRIUS frame that fits alongside contactors in a motor starter assembly.","metaTitle":"Siemens 3RV1031-4FA10-ZW97 SIRIUS Motor Protection CB, 40 A,","metaDescription":"Siemens 3RV1031-4FA10-ZW97 SIRIUS motor protection circuit breaker, 40 A continuous, Class 10 trip, 50 kA at 400 V. Screw terminals, snap-on DIN rail. Current production. Quoted to","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 (0.75 ... 16 mm²)","Width":"55 mm","Height":"140 mm","Stranded":"2x (0.75 ... 25 mm²), 1x (0.75 … 35 mm²)","Backwards":"0 mm","Trip Class":"CLASS 10","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","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 AC in hot operating state per pole":"9.7 W","Finely Stranded With Core End Processing":"2x (0.75 ... 16 mm²), 0.75 ... 25 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=187699&mlfb=3RV1031-4FA10-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4FA10-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV1031-4FA10-ZW97 at 400 V?","answer":"50 kA at 400 V AC, which covers most industrial panel fault levels without requiring an upstream current-limiting fuse for SCCR compliance."},{"question":"What wire sizes does the 3RV1031-4FA10-ZW97 accept?","answer":"Main circuit screw-type box terminals accept 2x solid 0.75–16 mm², 2x stranded 0.75–25 mm², or 1x stranded 0.75–35 mm². AWG equivalent is 2x 18–2 AWG solid or stranded, or a single up to 2 AWG."},{"question":"Does the 3RV1031-4FA10-ZW97 include ground fault detection?","answer":"No, ground fault detection is not included. This is a thermal-magnetic motor protection breaker with phase failure detection but no GFCI function."},{"question":"How do I get pricing and availability for 3RV1031-4FA10-ZW97?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1031-4FA10-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/3RV1031-4FA10-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}}