{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV4342-0MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV4342-0MB","canonicalUrl":"https://aoctrl.com/siemens/5SV4342-0MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SV4342-0MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 4-pole, 25 A at 40 °C, 30 mA trip, Type AC, 400 V AC, 10 kA SCCR, DIN-rail mount, current-production.","salesMarkdown":"The Siemens SENTRON 5SV4342-0MB is a 4-pole residual current circuit breaker (RCCB) rated for 25 A at 40 °C with a 30 mA trip threshold, Type AC, for 400 V AC 60 Hz systems. The 30 mA residual trip is the standard threshold for personnel protection against electric shock in most IEC-based installations. Rated current holds at 25 A from 40 °C through 60 °C ambient, then derates to 23.3 A at 65 °C and 17.6 A at 70 °C. In a warm panel (say 55 °C), the full 25 A is available; above 60 °C you lose headroom. The 10 kA SCCR (IEC 61008-1) means the device withstands a 10 kA prospective fault current — common for a sub-distribution board downstream of a larger main breaker. Let-through energy (I²t) is rated at 58 000 A²·s, with a permissible let-through current of 5 200 A. This tells the downstream cable and busbar sizing engineer what energy the RCCB passes during a fault — useful for verifying that the connected wiring and terminals are rated for the stress. Depth is 70 mm.","metaTitle":"Siemens SENTRON 5SV4342-0MB 4P RCCB, 25 A, 30 mA, Type AC","metaDescription":"Siemens SENTRON 5SV4342-0MB 4-pole RCCB, 25 A rated, 30 mA trip, Type AC. Current-production status. DIN-rail mount. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"72 mm","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","at AC rated value":"25 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","I2t value permissible":"58 000 A²·s","Residual Current Type":"AC","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","Product Feature Silicon-Free":"Yes","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","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":"0.8 kA","Switching Function Short-Term Delayed":"No","Value Range Of The Operating Frequency":"60 Hz","value range of the supply voltage at AC":"400 V","Value Range Of The Supply Voltage Frequency":"60 Hz","Supply Voltage For Testing Equipment Minimum":"100 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","Short-Circuit Current Of Series Fuse Maximum Permissible":"80 A","for rated value of the current at AC in hot operating state per pole":"1.3 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/123f84553a8a3025eba30e82a74cf0e1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=906808&mlfb=5SV4342-0MB","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV4342-0MB/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV4342-0MB","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/5SV4342-0MB 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}}