{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3SE6605-2BA","brand":"Siemens","brandSlug":"siemens","productSlug":"3SE6605-2BA","canonicalUrl":"https://aoctrl.com/siemens/3SE6605-2BA","factsUrl":"https://aoctrl.com/api/mcp/products/3SE6605-2BA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS magnetically operated reed switch, 3SE6605-2BA, block design, IP67, 3 m PVC cable, 5 mm assured ON distance, 400 mA / 100 V AC/DC, Category 4 per EN 954-1.","salesMarkdown":"The Siemens 3SE6605-2BA is a SIRIUS magnetically operated reed switch in a rectangular plastic block housing, 25 x 13 x 88 mm, with a 3 m PVC cable and screw fixing. It is designed for safety-related circuits — Category 4 per EN 954-1 — and carries one NC and one NO reed contact rated at 400 mA / 100 V AC/DC, 10 W. The assured operating distance is 5 mm ON, 15 mm OFF, and the sensor requires a separate evaluation unit (not included). The 5 mm assured ON distance and 15 mm OFF distance define the gap between the sensor face and the actuator magnet that guarantees the switch state — critical for guard-door interlock placement where the door seal gap must stay under 5 mm for the safety function to hold. Category 4 per EN 954-1 means the switch architecture detects a single fault without losing the safety function, and a second fault is detected before the next demand. The IP67 rating means the sensor body and cable entry withstand washdown and temporary immersion — suitable for food, beverage, or outdoor conveyor lines where hose-down cleaning is routine. The sensor cannot be flush-mounted (no flush installation possible), so plan for a 25 mm wide surface-mount footprint with clearance around the active face. ## Integration notes Screw fixing into a panel or machine frame — no DIN-rail clip on this block housing. The 3 m PVC cable terminates in flying leads; plan for a cable gland or strain relief at the panel entry. The reed contacts are dry (no positive opening mechanism), so the safety circuit must rely on the external evaluation unit for cross-circuit/short-circuit recognition, which the sensor supports. Shock resistance to 30 g / 11 ms sinusoidal half-wave and vibration resistance to 1 mm at 10–55 Hz per IEC 60068-2-27 and IEC 60068-2-6.","metaTitle":"Siemens 3SE6605-2BA SIRIUS Magnetically Operated Switch, IP6","metaDescription":"Siemens 3SE6605-2BA SIRIUS magnetically operated reed switch, IP67, 3 m cable, 5 mm assured ON distance, Category 4 per EN 954-1 for safety circuits. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Limit Switches"],"specifications":{"title":"3SE6605-2BA","Wire Length":"3 m","description":"magnetically-operated switch, contact block, rectangular large 25 x 88 mm, contacts 1 NC/1 NO, with 3 m cable. required solenoid 3SE6704-2BA or with increased operating distance 8 mm 3SE6701-2BA.","Type Of Voltage":"AC/DC","lifecycle_stage":"current","Fastening Method":"screw fixing","Positive Opening":"No","Circuit Principle":"reed switches","Product Brand Name":"SIRIUS","Product Designation":"Magnetically operated switch","Switching Frequency":"5 Hz","Width Of The Sensor":"25 mm","protection class IP":"IP67","Height Of The Sensor":"13 mm","Length Of The Sensor":"88 mm","Design Of The Housing":"block","Design Of The Product":"Rectangular sensor unit","Evaluation Unit Required":"yes","Material Of Cable Sheath":"PVC","Type Of Switching Output":"Reed contacts","Material Of The Enclosure":"plastic","Operating Power Rated Value":"10 W","Operating Voltage Rated Value":"100 V","Substance Prohibitance (Date)":"07/01/2006","Type Of Electrical Connection":"cable","assured operating distance ON":"5 mm","assured operating distance OFF":"15 mm","category according to EN 954-1":"4","Design Of The Actuating Element":"magnet","Operational Current Rated Value":"400 mA","Design Of The Switching Function":"NC contact and NO contact","Material Of The Active Sensor Area":"plastic","Ambient Temperature During Operation":"-25 ... +70 °C","Cross-Circuit/Short-Circuit Recognition":"Yes","reference code according to IEC 81346-2":"S","Type Of Voltage Of The Operating Voltage":"AC/DC","Suitability For Use Safety-Related Circuits":"Yes","Mechanical Installation Condition For Sensor":"no flush installation possible","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","shock resistance according to IEC 60068-2-27":"Sinusoidal half-wave 30g / 11 ms","vibration resistance according to IEC 60068-2-6":"10 ... 55 Hz: 1 mm","performance level (PL) according to EN ISO 13849-1":"e"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$38.10 – $110.41","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/4ddf3786f9408064a9b0c297cfc7bae0.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=206714&mlfb=3SE6605-2BA"},"ai":{"faq":[{"question":"What is the assured operating distance for 3SE6605-2BA?","answer":"5 mm ON (switch closes) and 15 mm OFF (switch opens), measured between the sensor face and the actuator magnet. This is the guaranteed distance under all rated conditions, not a typical or nominal value."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3SE6605-2BA","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/3SE6605-2BA 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}}