{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2031-4EB15","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2031-4EB15","canonicalUrl":"https://aoctrl.com/siemens/3RV2031-4EB15","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4EB15","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2031-4EB15 motor protection circuit breaker, 32 A, 30 kA breaking capacity at 400 V AC, CLASS 20 trip, screw and snap-on mounting onto 35 mm DIN rail.","salesMarkdown":"It integrates phase failure detection, so a lost phase trips the breaker before the motor overheats — a common failure mode in industrial lines. Rated 32 A at 600 V and 32 A at 480 V, with a breaking capacity of 30 kA at 400 V AC. Trip class is CLASS 20, so it allows a 20-second cold-start overload before tripping. That suits standard induction motors driving pumps, fans, and conveyors — not high-inertia loads that need a longer ramp. Dimensions: 55 mm wide, 140 mm high, 149 mm deep — check the depth against your enclosure clearance. The storage limit governs handling, not running — fine for unheated warehouses. Breaking capacity varies with system voltage: 100 kA at 240 V, 30 kA at 400 V, 5 kA at 500 V, and 2 kA at 690 V. The 30 kA at 400 V is the typical industrial panel rating — most distribution boards are designed around that figure.","metaTitle":"Siemens 3RV2031-4EB15 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV2031-4EB15 SIRIUS motor protection circuit breaker, 32 A rated, 30 kA breaking capacity at 400 V AC. CLASS 20 trip, phase failure detection, screw/snap-on DIN rail mount","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"149 mm","Width":"55 mm","Height":"140 mm","Upwards":"50 mm","at 24 V":"1 A","at 60 V":"0.15 A","at 110 V":"0 A","at 125 V":"0 A","at 220 V":"0 A","at 230 V":"0.5 A","at 240 V":"none required","at 400 V":"125","at 500 V":"100","at 690 V":"80","Downwards":"50 mm","Trip Class":"CLASS 20","At The Side":"10 mm","Rated Value":"20 ... 690 V","During Storage":"-50 ... +80 °C","at AC-3 maximum":"15 1/h","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 60715","at AC-3e maximum":"15 1/h","For Main Contacts":"M6","Mounting Position":"any","Solid Or Stranded":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"5 hp","at 240 V rated value":"100 kA","at 400 V rated value":"30 kA","at 480 V rated value":"32 A","at 500 V rated value":"5 kA","at 600 V rated value":"32 A","at 690 V rated value":"2 kA","Design Of The Product":"For motor protection","Ground Fault Detection":"No","Phase Failure Detection":"Yes","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"3 hp","at 200/208 V rated value":"10 hp","at 220/230 V rated value":"10 hp","at 460/480 V rated value":"25 hp","at 575/600 V rated value":"30 hp","at AC at 240 V rated value":"100 kA","at AC at 400 V rated value":"65 kA","at AC at 500 V rated value":"10 kA","at AC at 690 V rated value":"4 kA","Design Of Screwdriver Shaft":"Diameter 5 to 6 mm","Size Of The Circuit-Breaker":"S2","Size Of The Screwdriver Tip":"Pozidriv size 2","at AC-3 rated value maximum":"690 V","Of The Main Contacts Typical":"50 000","at AC in hot operating state":"18 W","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"50 000","Substance Prohibitance (Date)":"10/15/2014","Design Of The Auxiliary Switch":"transverse","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"32 A","at AWG cables for main contacts":"2x (18 ... 3), 1x (18 ... 2)","Design Of The Short-Circuit Trip":"magnetic","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","Relative Humidity During Operation":"10 ... 95 %","Display Version For Switching Status":"Handle","Surge Voltage Resistance Rated Value":"6 kV","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14)","Of The Auxiliary And Control Contacts":"M3","at AC in hot operating state per pole":"6 W","reference code according to IEC 81346-2":"Q","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","Product Function Short Circuit Protection":"Yes","with low demand rate according to SN 31920":"50 FIT","For Main Contacts With Screw-Type Terminals":"3 ... 4.5 N·m","with high demand rate according to SN 31920":"50 %","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"25g / 11 ms Sinus","Electrical Endurance (Switching Cycles) Typical":"50 000","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","operational current at AC-3 at 400 V rated value":"32 A","Size Of Contactor Can Be Combined Company-Specific":"S2","contact rating of auxiliary contacts according to UL":"C300 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 10 A, miniature circuit breaker C 6 A (short-circuit current Ik < 400 A)","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"416 A","insulation voltage with degree of pollution 3 at AC rated value":"690 V","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":"https://cdn.aoctrl.com/4ac59e9ee2ba9ac36caaae3b52a6bf06.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=10214&mlfb=3RV2031-4EB15","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4EB15/alternatives.json"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV2031-4EB15 at 400 V?","answer":"30 kA at 400 V AC. It also carries 100 kA at 240 V, 5 kA at 500 V, and 2 kA at 690 V."},{"question":"Will 3RV2031-4EB15 drop into a panel specified around 3RV2021-4NA25 without rewiring?","answer":"Both mount on 35 mm DIN rail per DIN EN 60715 and share the same SIRIUS form factor, so the physical swap is straightforward. Verify the current rating and trip class match your motor — the 3RV2031-4EB15 is rated 32 A with CLASS 20 trip, while the 3RV2021-4NA25 may differ."},{"question":"Where can I buy 3RV2031-4EB15 and get current pricing?","answer":"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 quote."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2031-4EB15","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/3RV2031-4EB15 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}}