{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV4742-0","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV4742-0","canonicalUrl":"https://aoctrl.com/siemens/5SV4742-0","factsUrl":"https://aoctrl.com/api/mcp/products/5SV4742-0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV4742-0 RCCB, 4-pole, type AC, 25 A rated, 500 mA residual trip, 10 kA SCCR, instantaneous, DIN rail mount, IP20.","salesMarkdown":"## Siemens 5SV4742-0 SENTRON RCCB — 4-pole, 25 A, 500 mA trip The I²t let-through is rated at 58 000 A²·s, and the peak let-through current is 5 200 kA — both figures the downstream equipment's withstand capability must exceed for selective coordination. The depth is 70 mm, same as the installation depth — no extra clearance needed behind the rail. Overvoltage category III, silicon-free construction. Operating frequency is 50 Hz only. Four modular width units at 72 mm wide; the 70 mm depth means it sits flush with most DIN-rail mounted MCBs in the same enclosure. Spring-cage or screw terminals accept standard copper conductors — verify terminal type on the nameplate before terminating. Supply top or bottom, no polarity concern on an RCCB. The test button requires a minimum 100 V to operate the test circuit. No short-time delay means it trips instantaneously on residual current exceeding 500 mA — use a selective (S-type) RCCB upstream if you need coordination with downstream devices.","metaTitle":"Siemens 5SV4742-0 SENTRON RCCB, 4-pole, 25 A, 500 mA, 10 kA","metaDescription":"Siemens SENTRON 5SV4742-0 RCCB, 4-pole, 25 A rated, 500 mA trip, 10 kA SCCR, IP20, DIN rail mount. Current production. 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":"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","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Operating Frequency":"50 Hz","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":"25 A","at 70 °C / rated value":"25 A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"0.8 kA","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"5 200 kA","Tripping Fault Current / Rated Value":"500 mA","Supply Voltage Frequency / Rated Value":"50 Hz","according to IEC 61008-1 / rated value":"0.8 kA","Switching Function / Short-Term Delayed":"No","size of installation devices / acc. to DIN 43880":"1","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/209311acb28db95441254b1d896c5ffd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=213403&mlfb=5SV4742-0","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV4742-0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SV4742-0 and get a price?","answer":"The 5SV4742-0 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commercial offer. No stock count or price is published here."},{"question":"What is the 5SV4742-0's depth?","answer":"The depth is 70 mm, which is also the installation depth — no additional clearance is required behind the DIN rail."},{"question":"What is the 5SV4742-0's width?","answer":"The width is 72 mm, corresponding to 4 modular width units (MW) per DIN 43880 size 1."},{"question":"Will the 5SV4742-0 drop into a panel specified around 5SJ6325-7RC without rewiring?","answer":"No, these are different device classes. The 5SV4742-0 is a 4-pole RCCB (residual current protection only, no overcurrent protection). The 5SJ6325-7RC is a miniature circuit breaker (MCB) with overcurrent and short-circuit protection but no residual current sensing. They are not drop-in interchangeable; the panel wiring and protection scheme would need to be redesigned."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV4742-0","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/5SV4742-0 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}}