{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SP3220-3","brand":"Siemens","brandSlug":"siemens","productSlug":"5SP3220-3","canonicalUrl":"https://aoctrl.com/siemens/5SP3220-3","factsUrl":"https://aoctrl.com/api/mcp/products/5SP3220-3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SP3220-3, 2-pole miniature circuit breaker, 20 A rated, 25 kA breaking capacity at 400 V AC, Type E tripping characteristic, standard rail mount.","salesMarkdown":"## Siemens 5SP3220-3 SENTRON Miniature Circuit Breaker – 20 A, 2-Pole, Type E, 25 kA The Siemens 5SP3220-3 is a 2-pole SENTRON miniature circuit breaker (MCB) rated at 20 A with a 25 kA breaking capacity at 400 V AC, per EN 60898. Its Type E tripping characteristic is designed for residential and infrastructure applications where a delayed magnetic trip is needed to avoid nuisance tripping from inrush currents — common on transformer or long-cable circuits. Rated insulation voltage (Ui) is 690 V, with surge voltage resistance rated at 6 kV and overvoltage category IV — suitable for main incoming panels where transient energy is highest. Occupies 3 modular width units (each 18 mm wide, so 54 mm total). The enclosure depth is 76.3 mm; height is 128 mm. The locking slide is integrated and accepts a padlock, wire seal, or cable tie for lockout/tagout compliance. Shock resistance is rated at 30 g for at least 3 impacts of 11 ms duration, so it survives shipping and panel vibration without tripping. ## Temperature Derating and Wire Range Rated 20 A at 30 °C ambient. Derate to 19 A at 40 °C, 18.5 A at 45 °C, 18 A at 50 °C, and 17.5 A at 55 °C — important for panels with high internal heat rise or summer ambient conditions. The wide wire range (2.5 to 50 mm²) covers everything from small control circuits to main feeder tails.","metaTitle":"Siemens 5SP3220-3 SENTRON MCB, 2-Pole 20A 25kA, Type E","metaDescription":"Siemens 5SP3220-3 SENTRON miniature circuit breaker, 2-pole, 20 A rated, 25 kA breaking capacity at 400 V AC, Type E characteristic. Current production. Sourced to order against RF","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["2-Pole MCB (DIN Rail)"],"specifications":{"Depth":"76.3 mm","title":"5SP3220-3","Height":"128 mm","Maximum":"70 °C","Minimum":"-40 °C","Sealable":"Yes","Rated Value":"25 kA","description":"Main miniature circuit breaker (SHU), 2-pole, E 20, 400V","Number Of Poles":"2","Solid / Maximum":"50 mm²","Solid / Minimum":"2.5 mm²","lifecycle_stage":"current","Fastening Method":"standard rail","Saddle Terminals":"Yes","Shock Resistance":"30 g, at least 3 impacts, impact duration 11 ms","Product Brand Name":"SENTRON","Stranded / Maximum":"50 mm²","Stranded / Minimum":"2.5 mm²","Degree Of Pollution":"3","Product Designation":"Miniature circuit breaker","acc. to IEC 81346-2":"F","at AC / rated value":"20 A","protection class IP":"IP40, with connected conductors","Overvoltage Category":"IV","Design Of The Product":"Main miniature circuit breaker","Infeed At Box Terminal":"Yes","acc. to DIN EN 61346-2":"F","at 30 °C / rated value":"20 A","at 40 °C / rated value":"19 A","at 45 °C / rated value":"18.5 A","at 50 °C / rated value":"18 A","at 55 °C / rated value":"17.5 A","Depth / Of The Enclosure":"76.3 mm","Suitability For Operation":"Residential buildings/infrastructure","Design Of The Locking Device":"Integrated locking slide, lockable by means of a lock, wire seal and cable ties","Number Of Modular Width Units":"3","Tripping Characteristic Class":"E","acc. to EN 60898 / rated value":"25 kA","Position / Of Power Supply Cord":"Any","supply voltage / at AC / rated value":"400 V","insulation voltage (Ui) / rated value":"690 V","Surge Voltage Resistance / Rated Value":"6 kV","vibration resistance / acc. to IEC 60068-2-6":"2 g, 20 frequency cycles 5 to 150 to 15 Hz","Display Version / For Switch Position Indicator":"OFF = green, ON = red","Mechanical Service Life (Switching Cycles) / Typical":"20 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/8236dbad7496a4adc151f041a9b1b049.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=141823&mlfb=5SP3220-3"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SP3220-3?","answer":"Submit an RFQ. The part is sourced to order through independent distribution; availability and current pricing are confirmed at quote time."},{"question":"What is the breaking capacity of the 5SP3220-3?","answer":"Rated breaking capacity is 25 kA at 400 V AC per EN 60898."},{"question":"What wire sizes does the 5SP3220-3 accept?","answer":"Solid or stranded conductors from 2.5 mm² minimum to 50 mm² maximum."},{"question":"What is the Type E characteristic used for?","answer":"Type E is a delayed magnetic trip characteristic, designed to avoid nuisance tripping from inrush currents in residential and infrastructure applications — typical on transformer or long-cable circuits."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SP3220-3","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/5SP3220-3 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}}