{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"SIEN-M5B-NS-K-L","brand":"Festo","brandSlug":"festo","productSlug":"SIEN-M5B-NS-K-L","canonicalUrl":"https://aoctrl.com/festo/SIEN-M5B-NS-K-L","factsUrl":"https://aoctrl.com/api/mcp/products/SIEN-M5B-NS-K-L","rawCanonicalId":null},"summary":{"shortDescription":"SIEN series inductive proximity sensor, M5 flush-mount barrel, 800 µm sensing distance, NPN normally-open output, 3 kHz switching frequency, IP67 stainless steel housing, cable termination.","salesMarkdown":"The SIEN-M5B-NS-K-L is an M5 flush-mount inductive proximity sensor from the SIEN series, rated for 800 µm sensing distance with a 40 µm repeat accuracy. The NPN normally-open output switches at up to 3 kHz, making it suited for counting or position-sensing applications where the target passes at high speed. The 800 µm range means the sensor must be positioned within that gap from the target — any farther and it won't trigger reliably. ## Deployment context The stainless-steel housing and IP67 rating let this sensor survive washdown environments — food processing lines, packaging machinery with periodic hose-downs, or outdoor conveyor sections. The M5 barrel is small enough to fit into tight mounting brackets or drilled holes in guard plates. Flush-mount means it can be embedded in a metal surface without false-triggering from the surrounding material. ## Electrical and switching limits Operating voltage range is 10–30 VDC; the sensor draws 10 mA quiescent current and can sink up to 200 mA through the NPN output. The 3 kHz switching frequency is the maximum — actual usable speed depends on target size and material (ferrous metal gives the best repeatability). The 40 µm repeat accuracy tells you the sensor will trigger within that window on successive passes under stable conditions.","metaTitle":"SIEN-M5B-NS-K-L Inductive Proximity Sensor, M5, 800 µm, NPN","metaDescription":"SIEN-M5B-NS-K-L inductive proximity sensor, M5 flush mount, 800 µm sensing distance, NPN NO output, 3 kHz switching, IP67 stainless steel. Available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Proximity Sensors"],"specifications":{"Width":"8 mm","title":"SIEN-M5B-NS-K-L","Height":"8 mm","Length":"38 mm","Series":"SIEN","description":"Inductive Proximity Sensor NPN, NO 3kHz 30V 10mA 800um Cable IP67 SIEN","Load Current":"200 mA","Mounting Type":"Flush Mount","lifecycle_stage":"current","Housing Material":"Stainless Steel","Termination Type":"Cable","Construction Form":"M5","Protection Rating":"IP67","Current Consumption":"10 mA","Switching Frequency":"3 kHz","Repeat Accuracy (mm)":"40 um","Sensing Distance Max.":"800 um","Operating Voltage Max.":"30 V","Operating Voltage Min.":"10 V","Operating Temperature Max.":"70 °C","Operating Temperature Min.":"-25 °C","Inductive Sensor Output Type":"NPN, NO"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$93.02 – $135.17","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/67940b1e1f979f446b7a14c8d95a06c7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the key ratings for SIEN-M5B-NS-K-L?","answer":"The key ratings are: 800 µm sensing distance, 40 µm repeat accuracy, 3 kHz switching frequency, NPN normally-open output, 10–30 VDC operating voltage, 200 mA load current, and IP67 protection."},{"question":"Where can I buy SIEN-M5B-NS-K-L?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for SIEN-M5B-NS-K-L?","answer":"The SIEN series is a standard industrial sensor line; compliance documentation (CE, RoHS) is typically included with the product. Specific declarations can be requested at time of order."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/festo/SIEN-M5B-NS-K-L","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/festo/SIEN-M5B-NS-K-L 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}}