{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2345-6KK01","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2345-6KK01","canonicalUrl":"https://aoctrl.com/siemens/5SM2345-6KK01","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2345-6KK01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCD-unit, 4-pole, 63 A rated at AC, 30 mA Type A, short-time delayed, for 5SY series MCBs.","salesMarkdown":"The Siemens 5SM2345-6KK01 is a SENTRON RCD-unit designed as a 4-pole residual current device with a 63 A rated current at AC and a 30 mA Type A trip threshold. It is short-time delayed, making it suitable for systems where nuisance tripping from transient surges or inrush currents needs to be avoided. This unit is intended for use with the 5SY series miniature circuit breakers, forming a combined RCBO assembly in a distribution board. The 63 A rating at AC governs the maximum continuous load current the RCD can carry without overheating. This is the headline figure for sizing against the downstream load. The 30 mA rated fault current is the standard threshold for personal protection against electric shock in most residential and commercial installations — it will trip within the required time on a ground fault exceeding 30 mA. The short-time delayed design provides immunity to brief voltage transients and inrush currents that would otherwise cause a nuisance trip. This is a deliberate choice for circuits with capacitive or inductive loads — think motor starters, UPS inputs, or LED lighting banks — where the initial current spike exceeds 30 mA for a few milliseconds but is not a genuine fault. Temperature derating is documented across the operating range: 58.6 A at 40 °C, stepping down to 50.4 A at 70 °C (–). If the distribution board runs hot — say, above 45 °C — the effective current capacity drops below the nominal 63 A. An MRO planner or panel builder must check the ambient temperature inside the enclosure and apply the corresponding derated figure to avoid nuisance tripping or thermal damage. Installation depth is 70 mm. It mounts in any position and the power supply connection can be made from the top or bottom. The fastening method is REG, standard for DIN-rail components. The reference code according to IEC 81346-2 is F. The overvoltage category is III, suitable for fixed installations in distribution boards. The degree of pollution is 2, covering normal indoor environments with only non-conductive pollution. Surge current withstand is rated at 3 kA, and surge voltage withstand at 4 kV. The operating frequency range is 50/60 Hz. The unit is not sealable and the OFF-delay time is not adjustable. The rated fault current is also not adjustable. A protection function against false tripping is included. The minimum test voltage is 195 V.","metaTitle":"Siemens 5SM2345-6KK01 SENTRON RCD, 4P, 63A, 30mA, Type A","metaDescription":"Siemens 5SM2345-6KK01 SENTRON RCD unit, 4-pole, 63 A rated, 30 mA Type A, short-time delayed. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 mm","Width":"124 mm","title":"5SM2345-6KK01","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"No","description":"RC unit for 5SY, 4-pole, type A, short-time delayed, In: 63 A, 30 mA, Un AC: 400 V","Design Of Pole":"4 poles","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"REG","Mounting Position":"any","at AC rated value":"63 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"for 5SY","Degree Of Pollution":"2","Product Designation":"RCD-unit","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"short-time delayed","Residual Current Type":"A","at 40 °C rated value":"58.6 A","at 45 °C rated value":"58.59 A","at 50 °C rated value":"56.7 A","at 55 °C rated value":"54.81 A","at 60 °C rated value":"53.55 A","at 65 °C rated value":"52.29 A","at 70 °C rated value":"50.4 A","OFF-delay time adjustable":"No","For Testing Equipment Minimum":"195 V","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"top or bottom","Rated Fault Current Adjustable":"No","Protection Function False Tripping":"Yes","Tripping Fault Current Rated Value":"30 mA","insulation voltage (Ui) rated value":"460 V","Surge Current Resistance Rated Value":"3 kA","Surge Voltage Resistance Rated Value":"4 000 V","Value Range Of The Operating Frequency":"50/60 Hz","reference code according to IEC 81346-2":"F","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50 Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","for rated value of the current at AC in hot operating state per pole":"4.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$116.84","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ae2ba66f76564187d575b3b92cad6dfe.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=350402&mlfb=5SM2345-6KK01"},"ai":{"faq":[{"question":"What is the closest functional alternative to the 5SM2345-6KK01?","answer":"The 5SL4363-7 is a peer part in the same SENTRON family, but it is a different variant — the 5SM2345-6KK01 is an RCD-unit designed to pair with 5SY MCBs, while the 5SL4363-7 is a combined RCBO. They are not direct drop-in replacements without rewiring; the 5SM2345-6KK01 requires a separate 5SY MCB to complete the overcurrent protection function."},{"question":"Will the 5SM2345-6KK01 drop into a panel specified around the 5SL4363-7?","answer":"No, not without rewiring. The 5SM2345-6KK01 is an RCD-unit that must be paired with a 5SY series MCB, whereas the 5SL4363-7 is a combined RCBO. The physical footprint and wiring scheme differ."},{"question":"What is the depth and width of the 5SM2345-6KK01?","answer":"The depth is 77 mm, the width is 124 mm, and the height is 90 mm. The installation depth is 70 mm."},{"question":"Where can I buy the 5SM2345-6KK01?","answer":"This part is 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/5SM2345-6KK01","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/5SM2345-6KK01 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}}