{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1031-4GB10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1031-4GB10","canonicalUrl":"https://aoctrl.com/siemens/3RV1031-4GB10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4GB10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS motor-protection circuit breaker, 3RV1031-4GB10, 45 A continuous, CLASS 20 trip, 50 kA SCCR at 400 V, screw terminals, DIN-rail mount.","salesMarkdown":"The Siemens 3RV1031-4GB10 is a SIRIUS motor-protection circuit breaker rated for 45 A continuous current with a CLASS 20 trip characteristic, sized for a 22 kW motor at 400 V. It snaps onto a 35 mm DIN rail per EN 50022 and uses screw-type box terminals for the main circuit — 2x (0.75…16 mm²) solid or 2x (0.75…25 mm²) stranded, with a single conductor up to 35 mm² stranded. ## Trip class and protection logic CLASS 20 means the bimetal trip allows up to 20 seconds at 600% of the full-load current before opening — standard for general-purpose induction motors driving pumps, fans, and compressors where the start-up transient isn't extreme. No ground-fault detection here; if you need that, you'd add a separate ground-fault module or use a different frame. Zero clearance needed at the back or sides — you can butt it against other devices without derating spacing. The screw terminals accept AWG 18…2 for the main circuit. Shock rated at 25 g / 11 ms. RoHS compliance date is July 1, 2006, so it meets the EU directive.","metaTitle":"Siemens 3RV1031-4GB10 SIRIUS Motor Protection CB, 45 A, CLAS","metaDescription":"Siemens 3RV1031-4GB10 SIRIUS motor-protection circuit breaker, 45 A continuous, CLASS 20, 50 kA at 400 V, phase-failure detection. Current lifecycle. Quoted to order.","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 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":"22 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":"45 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":"45 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":"36 ... 45 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=164644&mlfb=3RV1031-4GB10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4GB10/alternatives.json"},"ai":{"faq":[{"question":"What is the interrupting rating of 3RV1031-4GB10 at 400 V?","answer":"50 kA at 400 V AC. At 240 V it's 100 kA, at 500 V it's 10 kA, and at 690 V it's 4 kA."},{"question":"What wire sizes does the 3RV1031-4GB10 accept?","answer":"The main circuit screw terminals accept 2x (0.75…16 mm²) solid or 2x (0.75…25 mm²) stranded, with a single conductor up to 35 mm² stranded. For AWG, that's 2x (18…2)."},{"question":"Where can I buy 3RV1031-4GB10 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — send an RFQ for a firm number."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1031-4GB10","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/3RV1031-4GB10 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}}