{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP4492-7","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP4492-7","canonicalUrl":"https://aoctrl.com/siemens/5SP4492-7","factsUrl":"https://aoctrl.com/api/mcp/products/5SP4492-7","rawCanonicalId":null},"summary":{"shortDescription":"SENTRON 5SP Series miniature circuit breaker, 4-pole, C characteristic, 125 A, 10 kA breaking capacity per EN 60898, 400 V AC, 6 MW, tunnel terminals.","salesMarkdown":"The SENTRON 5SP4492-7 is a 4-pole miniature circuit breaker with a C tripping curve, rated 125 A at 400 V AC and a 10 kA breaking capacity per EN 60898. It sits in the 5SP family — a DIN-rail-mount, 6-module-width design with tunnel terminals top and bottom, and it accepts supplementary devices for downstream signaling or remote tripping. The 70 mm installation depth and 76 mm body depth fit standard distribution boards; the unit is sealable and halogen- and silicon-free, which simplifies disposal and compliance paperwork. ## The C-curve and the 10 kA — what they mean on a real line The C characteristic (magnetic trip at 5–10× In) is the go-to for general-purpose loads — motor starters, contactor coils, small transformers, lighting banks where inrush isn't brutal but still needs a little headroom. ## Mounting and environment — no special treatment needed Temperature range -40 to 75 °C, so it'll live in an unheated warehouse or a hot roof-top enclosure without derating drama. The 5SP4292-7 is the same 4-pole C-curve 10 kA platform but rated 100 A instead of 125 A. Both share the 6 MW footprint, tunnel terminals, and the same 70 mm installation depth. If your panel was specified around the 100 A version and the load grew, the 5SP4492-7 drops into the same DIN-rail slot and same wiring scheme — no rewiring, no adapter plate. The only change is the higher continuous rating.","metaTitle":"SENTRON 5SP4492-7 MCB, 4P C 125A 10kA 400V AC","metaDescription":"SENTRON 5SP4492-7 miniature circuit breaker, 4-pole, C-curve, 125 A, 10 kA per EN 60898, 400 V AC. Active production. Sourced to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Miniature Circuit Breakers (MCB)"],"specifications":{"Depth":"76 mm","Width":"108 mm","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"Yes","Halogen-Free":"Yes","Silicon-Free":"Yes","Design Of Pole":"4P","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail and screw fixing","Mounting Position":"any","at AC rated value":"440 V","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","protection class IP":"IP20 with connected conductors, IP40 in the area of the handle with distribution cover","Overvoltage Category":"3","Tunnel Terminals Top":"Yes","Design Of The Product":"5SP Miniature circuit breakers","Tunnel Terminals Bottom":"Yes","Number Of Modular Width Units":"6","Position Of Power Supply Cord":"Any","Tripping Characteristic Class":"C","supply voltage at AC rated value":"400 V","according to EN 60898 rated value":"10 kA","Influence Of The Surrounding Temperature":"Max. 95% rel. humidity","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50/60 Hz","shock resistance according to IEC 60068-2-27":"150m/s² at 11ms half-sine","with multi-phase operation at AC rated value":"440 V","vibration resistance according to IEC 60068-2-6":"50m/s² at 25 to 150Hz and 60m/s² at 35Hz (4sec)","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","power loss [W] for rated value of the current at AC in hot operating state per pole":"10.9 W"}},"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=23641&mlfb=5SP4492-7","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SP4492-7/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP4492-7","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/5SP4492-7 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}}