{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV5312-0MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV5312-0MB","canonicalUrl":"https://aoctrl.com/siemens/5SV5312-0MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SV5312-0MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV5312-0MB, 2-pole Type AC RCCB, In 25 A, IΔn 30 mA, Un AC 230 V, 6 kA SCCR, DIN rail mount.","salesMarkdown":"## What it is and what it does The Siemens 5SV5312-0MB is a 2-pole residual current operated circuit breaker (RCCB) from the SENTRON family, Type AC, rated 25 A with 30 mA trip sensitivity for 230 V AC circuits. It is an instantaneous-trip device — no intentional short-time delay — so it clears ground-faults as fast as the waveform allows, which is the standard choice for general-purpose socket and lighting circuits in residential and commercial distribution boards. The 30 mA sensitivity is the common threshold for personal protection against direct contact. The 6 kA short-circuit current rating (SCCR) means the device can safely interrupt a fault up to that level. ## Panel integration and mounting Snaps onto DIN rail (REG) and occupies 2 modular width units (36 mm). The 70 mm installation depth leaves clearance behind a standard enclosure gland plate. Mounting position is unrestricted. Supply can enter from top or bottom; the design is symmetrical for wiring convenience. IP20 rating applies only when the distribution board is installed with all conductors connected — the front face is touch-safe, but the terminals are not sealed against dust ingress until the board cover is on.","metaTitle":"Siemens 5SV5312-0MB SENTRON RCCB, 25A, 30mA, 2-Pole","metaDescription":"Siemens 5SV5312-0MB SENTRON RCCB, 2-pole Type AC, 25A rated current, 30mA trip sensitivity, 230V AC, 6kA SCCR. Active lifecycle. DIN rail mount. Sourced 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":"36 mm","title":"5SV5312-0MB","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","Grid Spacing":"60 mm","Number Of Poles":"2","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Product Feature Silicon-Free":"Yes","Short-Circuit Current Rating":"6 kA","Number Of Modular Width Units":"2","Position Of Power Supply Cord":"top or bottom","according to IEC 61008-1 rated value":"0.5 kA","Switching Function Short-Term Delayed":"No","Value Range Of The Operating Frequency":"60 Hz","value range of the supply voltage at AC":"230 V","Ambient Temperature During Storage Minimum":"-40 °C","Value Range Of The Supply Voltage Frequency":"60 Hz","Supply Voltage For Testing Equipment Minimum":"100 V","Mechanical Service Life (Operating Cycles) Typical":"2 000","Product Extension Installable Supplementary Devices":"No","Short-Circuit Current Of Series Fuse Maximum Permissible":"63 A","for rated value of the current at AC in hot operating state per pole":"1 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e827a457a338c20f427a92763d0359bd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=906812&mlfb=5SV5312-0MB"},"ai":{"faq":[{"question":"What is the width of the 5SV5312-0MB?","answer":"36 mm, which is 2 modular width units on a DIN rail."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV5312-0MB","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/5SV5312-0MB 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}}