{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3314-0LA01","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3314-0LA01","canonicalUrl":"https://aoctrl.com/siemens/5SM3314-0LA01","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3314-0LA01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3 series RCCB, 2-pole type AC, short-time delayed, In: 40 A, IΔn: 30 mA, Un AC: 230 V, DIN rail mount, IP20.","salesMarkdown":"The 230 V AC rated supply voltage matches single-phase line-to-neutral supplies common in European distribution boards. The short-time delayed characteristic means it rides through brief transient leakage spikes (e.g., from motor startup or switching surges) that would nuisance-trip a standard instantaneous RCCB, making it a better fit for circuits with inductive loads or long cable runs. It includes thermal overload protection — a feature that combines overcurrent and residual current protection in one device, saving a DIN slot compared to wiring a separate MCB upstream. Terminals accept solid or stranded conductors from 1 to 16 mm², tightened to 2.5 to 3 N·m. ## Integration into a panel — what fits and what doesn't Mounts on a standard 35 mm DIN rail and occupies 2 modular width units at 70 mm installation depth — fits any standard distribution board sized to DIN 43880 size 1. The IP20 rating is typical for enclosed panel gear; it's finger and back-of-hand safe when installed with conductors connected, but not rated for wet or dusty environments. The silicon-free construction is relevant for potting or conformal-coating processes in certain industrial or automotive panels. A panel specified around a 5SY4-series MCB (e.g., 5SY4304-7CV, 5SY4316-7CV, or 5SY4350-7CV) cannot simply drop in the 5SM3314-0LA01 without rewiring. The 5SY4 units are 3-pole MCBs with a 3-module width (54 mm) and 76 mm depth, while the 5SM3 RCCB is 2-pole, 2-module width, and 70 mm depth. The 5SY4 series lacks residual current detection and thermal overload protection built-in — it's a straight overcurrent device. If the BOM calls for earth leakage protection on a 230 V single-phase circuit, the 5SM3314-0LA01 is the correct functional choice, but the panel layout and wiring must be revised to match the 2-pole, 2-MU footprint.","metaTitle":"Siemens 5SM3314-0LA01 SENTRON RCCB, 2-pole, 40 A, 30 mA, 230","metaDescription":"Siemens 5SM3314-0LA01 SENTRON RCCB, 2-pole type AC, 40 A rated current, 30 mA trip, 230 V AC, short-time delayed, DIN rail mount. Sourced to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Solid":"1 ... 16 mm²","Stranded":"1 ... 16 mm²","Rated Value":"50 Hz","Mounting type":"DIN rail (REG)","During Storage":"-40 ... +75 °C","Number of poles":"2","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Product variations":"With thermal overload protection","Ambient temperature":"-5 ... +45 °C","Operating frequency":"50Hz","Product designation":"RCCB","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Design of the product":"Short-time delayed","Number of width units":"2","Type of fault current":"AC","circuit-breaker / Design":"5SM3","Short-circuit current rating":"10 kA","Current / at AC / rated value":"40 A","Product feature / silicon-free":"Yes","Position / of power supply cord":"top or bottom","Protection against electrical shock":"Finger and back-of-hand safe","Supply voltage / at AC / rated value":"230 V","Surge current resistance / rated value":"3 kA","Switching function / short-term delayed":"Yes","Tripping residual current / rated value":"30 mA","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Size of installation devices / acc. to DIN 43880":"1","Supply voltage / for testing equipment / minimum":"195 V","Mechanical service life (switching cycles) / typical":"10 000"}},"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=412472&mlfb=5SM3314-0LA01","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3314-0LA01/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SM3314-0LA01?","answer":"The 5SM3314-0LA01 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm price and lead time."},{"question":"What is 5SM3314-0LA01's listed solid and stranded conductor range?","answer":"Both solid and stranded conductors are accepted from 1 to 16 mm². The screw-type terminals require a tightening torque of 2.5 to 3 N·m."},{"question":"Will 5SM3314-0LA01 drop into a panel specified around 5SY4304-7CV without rewiring?","answer":"No. The 5SY4304-7CV is a 3-pole MCB with a 3-module width (54 mm) and 76 mm depth, while the 5SM3314-0LA01 is a 2-pole RCCB with 2-module width and 70 mm depth. The different pole count, width, and function (residual current vs. overcurrent only) require panel layout and wiring changes."},{"question":"What compliance documentation does Siemens provide for 5SM3314-0LA01?","answer":"The part carries overvoltage category III and IP20 protection ratings. It is designed to IEC/EN standards for RCCBs. For specific RoHS, REACH, or UL documentation, request the manufacturer's declaration at the time of RFQ — the evidence does not list these certs directly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3314-0LA01","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/5SM3314-0LA01 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}}