{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV4312-0KL","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV4312-0KL","canonicalUrl":"https://aoctrl.com/siemens/5SV4312-0KL","factsUrl":"https://aoctrl.com/api/mcp/products/5SV4312-0KL","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 2-pole, 25 A, 30 mA, instantaneous AC type, 10 kA, 230 V AC, 50 Hz, DIN rail, IP20.","salesMarkdown":"Depth is 70 mm; account for that when sizing the enclosure depth — especially if busbars or wiring ducts run behind the row. ## Ratings that matter in the nacelle Up-tower, temperature derating is the spec that bites you if you ignore it. At 65 °C it still holds 23.3 A, and at 70 °C it derates to 17.6 A. The I²t rating of 58 000 A²·s and a let-through current of 5 200 A define the energy the RCCB passes during a fault. For selectivity coordination with an upstream MCB, those numbers tell you whether the RCCB clears before the main breaker sees the full fault energy — critical in a turbine tower where a nuisance trip at the main breaker drops the whole converter, not just the branch circuit. Supply voltage for the test circuit is 195 V minimum, so the test button works reliably even on a weak grid. Overvoltage category III means it's rated for fixed-installation distribution boards, not just downstream socket circuits. Silicon-free construction matters for automotive or paint-line applications where silicone outgassing causes adhesion failures.","metaTitle":"Siemens SENTRON 5SV4312-0KL RCCB, 2-pole, 25 A, 30 mA, 10 kA","metaDescription":"Siemens SENTRON 5SV4312-0KL 2-pole RCCB, 25 A rated, 30 mA trip sensitivity, 10 kA SCCR. Instantaneous AC type. DIN rail mount. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"36 mm","title":"5SV4312-0KL","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","description":"Residual current operated circuit breaker, 2-pole, Type AC, In: 25 A, 30 mA, Un AC: 230 V, N left","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"N left","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Product Designation":"RCCB","at AC / rated value":"25 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"AC","I2t value / permissible":"58 000 A²·s","at 40 °C / rated value":"25 A","at 45 °C / rated value":"25 A","at 50 °C / rated value":"25 A","at 55 °C / rated value":"25 A","at 60 °C / rated value":"25 A","at 65 °C / rated value":"23.3 A","at 70 °C / rated value":"17.6 A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"2","Product Feature / Silicon-Free":"Yes","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"5 200 A","Tripping Fault Current / Rated Value":"30 mA","according to IEC 61008-1 / rated value":"0.5 kA","Switching Function / Short-Term Delayed":"No","Value Range / Of The Operating Frequency":"50 Hz","value range / of the supply voltage / at AC":"230 V","Value Range / Of The Supply Voltage Frequency":"50 Hz","Supply Voltage / For Testing Equipment / Minimum":"195 V","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$25.40","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/53072178a266e9fbb4079dbad3b5f631.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=138559&mlfb=5SV4312-0KL"},"ai":{"faq":[{"question":"Where can I buy the 5SV4312-0KL and get a price?","answer":"We source and quote the 5SV4312-0KL to order against an RFQ. Availability and current pricing are confirmed at quote time through our independent distribution network — submit an RFQ for a firm price and lead time."},{"question":"What is the closest functional second-source to the 5SV4312-0KL?","answer":"The 5SL6550-7BB is a Siemens SENTRON RCCB with similar ratings — 2-pole, 25 A, 30 mA — but it is a different variant. Verify the neutral position (N left vs N right), terminal pitch, and any busbar compatibility before substituting. The 5SV4312-0KL is an instantaneous AC type; confirm the 5SL6550-7BB matches that characteristic if timing coordination matters."},{"question":"Will the 5SV4312-0KL drop into a panel specified around the 5SL6550-7BB?","answer":"Both are 2-module-width (36 mm) DIN-rail RCCBs from the SENTRON family, so the mechanical footprint is the same. The critical check is the neutral position — the 5SV4312-0KL has N left, while the 5SL6550-7BB may differ. If your busbar or pre-wired jumper expects neutral on the right, you will need to re-terminate or swap the busbar segment."},{"question":"What compliance documentation does Siemens provide for the 5SV4312-0KL?","answer":"The RCCB is designed to IEC 61008-1 (the standard for residual current devices without integral overcurrent protection). It carries a rated conditional short-circuit current of 0.5 kA per IEC 61008-1. For RoHS, REACH, and UL documentation, request the manufacturer's declaration of conformity — these are typically available through the Siemens Industry Online Support portal."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV4312-0KL","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/5SV4312-0KL 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}}