{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1031-4HB10","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1031-4HB10","canonicalUrl":"https://aoctrl.com/siemens/3RV1031-4HB10","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4HB10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS, motor protection circuit breaker, 3RV1031-4HB10, 50 A continuous, 22 kW at 400 V, CLASS 20, 3-pole, screw terminals, IP20 front.","salesMarkdown":"The Siemens 3RV1031-4HB10 is a SIRIUS motor-protection circuit breaker rated for 50 A continuous current and 22 kW at 400 V, with a CLASS 20 trip characteristic. That CLASS 20 curve allows the breaker to ride through the high inrush of a standard induction motor start (typically 6–8× FLA for 10–20 seconds) without nuisance tripping, while still protecting against locked-rotor and overload conditions. The 50 A continuous rating and 22 kW at 400 V mean it is sized for a motor load up to that power — a 30 hp (22 kW) four-pole motor at 400 V draws roughly 42–45 A full-load, so the 50 A frame gives headroom for ambient derating or a slightly oversized motor. ## Short-circuit coordination — what the SCCR ratings mean for panel design This breaker carries a 100 kA interrupting rating at 240 V AC, 50 kA at 400 V, 10 kA at 500 V, and 4 kA at 690 V. The breaker also includes phase failure detection, which trips on loss of one phase — a common cause of single-phasing motor damage that a standard thermal overload might miss. ## Mounting and integration — DIN rail fit, wiring, and clearances Width is 55 mm, height 140 mm, depth 149 mm. No side clearance required (0 mm backwards and at the side), so you can pack breakers tight on the rail. Main circuit terminals accept solid 2x (0.75…16 mm²) or stranded 2x (0.75…25 mm²) and 1x (0.75…35 mm²). Auxiliary and control circuit terminals are screw-type.","metaTitle":"Siemens 3RV1031-4HB10 SIRIUS Motor Protection Circuit Breake","metaDescription":"Siemens 3RV1031-4HB10 SIRIUS motor protection circuit breaker, 50 A continuous, 22 kW at 400 V, CLASS 20 trip, 100 kA SCCR at 240 V. DIN rail mount, phase failure detection. Source","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":"50 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":"50 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":"40 ... 50 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=101278&mlfb=3RV1031-4HB10","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1031-4HB10/alternatives.json"},"ai":{"faq":[{"question":"What is 3RV1031-4HB10's listed depth?","answer":"The depth is 149 mm. Combined with a width of 55 mm and height of 140 mm, and zero required side or rear clearance, it fits tightly on a DIN rail without wasted panel space."},{"question":"Will 3RV1031-4HB10 drop into a panel specified around 3RV6021-4DA10 without rewiring?","answer":"The 3RV1031-4HB10 and 3RV6021-4DA10 are both SIRIUS motor-protection circuit breakers with similar DIN-rail mounting and screw terminals, but they are different frame sizes. The 3RV1031-4HB10 is a 50 A, CLASS 20 breaker; the 3RV6021-4DA10 is a different rating. Panel fit depends on the specific cutout and wiring provisions for that frame size — verify the physical dimensions and terminal spacing before assuming a drop-in replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1031-4HB10","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/3RV1031-4HB10 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}}