{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2031-4PB10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2031-4PB10","canonicalUrl":"https://aoctrl.com/siemens/3RV2031-4PB10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2031-4PB10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor protection circuit breaker, 3RV2031-4PB10, Class 20 trip, 30 kA at 400 V, 55 mm wide, screw and snap-on DIN rail mounting.","salesMarkdown":"Trip Class 20 means it allows a 20-second cold-start lock-rotor current before tripping — standard for general-purpose conveyors, pumps, and fans that don't need the fast reaction of Class 10. Ground fault detection is not included — that's handled separately by a GFCI or RCD upstream. Mounts in any position. Screw-type terminals on the main circuit accept 2x 1–25 mm² or 1x 1–35 mm² solid/stranded — M6 for the main contacts. At 240 V no side clearance is required. Short-circuit breaking capacity varies by voltage: 100 kA at 240 V, 30 kA at 400 V, 5 kA at 500 V, and 2 kA at 690 V. At 480 V it's rated 36 A continuous; at 600 V also 36 A. This lets you coordinate with upstream MCCBs or fuses for selective tripping on most 480 V industrial panels. Maximum switching frequency in AC-3 duty is 15 operations per hour — fine for occasional start/stop cycles, not for high-duty jogging or reversing applications.","metaTitle":"Siemens 3RV2031-4PB10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens SIRIUS 3RV2031-4PB10 motor protection circuit breaker, Class 20, 30 kA breaking capacity at 400 V, 55 mm wide, DIN rail mount. Sourced to order against RFQ.","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","title":"3RV2031-4PB10","Height":"140 mm","Upwards":"50 mm","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","description":"Circuit breaker size S2 for motor protection, Class 20 A-release 28...36 A N-release 520 A screw terminal Standard switching capacity","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 DIN rail according to DIN EN 60715","at AC-3e maximum":"15 1/h","For Main Contacts":"M6","Mounting Position":"any","Solid Or Stranded":"2x (1 ... 25 mm²), 1x (1 ... 35 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Circuit breaker","at 230 V rated value":"7.5 hp","at 240 V rated value":"100 kA","at 400 V rated value":"30 kA","at 480 V rated value":"36 A","at 500 V rated value":"5 kA","at 600 V rated value":"36 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":"15 hp","at 220/230 V rated value":"15 hp","at 460/480 V rated value":"30 hp","at 575/600 V rated value":"40 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":"20 W","at AC-3 at 400 V rated value":"36 A","at AC-3e rated value maximum":"690 V","Of Auxiliary Contacts Typical":"50 000","Substance Prohibitance (Date)":"10/15/2014","at AC-3e at 400 V rated value":"36 A","Design Of The Overload Release":"thermal","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"36 A","at AWG cables for main contacts":"2x (18 ... 3), 1x (18 ... 2)","Design Of The Short-Circuit Trip":"magnetic","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 AC in hot operating state per pole":"6.7 W","With Side-By-Side Mounting At The Side":"0 mm","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (1 ... 16 mm²), 1x (1 ... 25 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 %","shock resistance according to IEC 60068-2-27":"25g / 11 ms Sinus","Electrical Endurance (Operating Cycles) Typical":"50 000","Size Of Contactor Can Be Combined Company-Specific":"S2","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","Response Value Current Of Instantaneous Short-Circuit Trip Unit":"520 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":"28 ... 36 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$114.30","stockQuantity":0,"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=177441&mlfb=3RV2031-4PB10"},"ai":{"faq":[{"question":"What is the breaking capacity of 3RV2031-4PB10 at 400 V?","answer":"30 kA at 400 V, which covers the majority of industrial fault levels for motor branch circuits."},{"question":"What trip class is 3RV2031-4PB10?","answer":"Trip Class 20 — allows 20 seconds of locked-rotor current before tripping, suitable for standard motor starting profiles."},{"question":"Does 3RV2031-4PB10 detect phase failure?","answer":"Yes, phase failure detection is built in. Ground fault detection is not included."},{"question":"Where can I buy 3RV2031-4PB10?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2031-4PB10","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/3RV2031-4PB10 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}