{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RG7640-0AB00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RG7640-0AB00","canonicalUrl":"https://aoctrl.com/siemens/3RG7640-0AB00","factsUrl":"https://aoctrl.com/api/mcp/products/3RG7640-0AB00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIMATIC PXO210 M18S diffuse photoelectric sensor, 3RG7640-0AB00, 500 mm range, PNP light-on, 10-30 VDC, 150 mA, 2 m PUR cable, IP67.","salesMarkdown":"The 3RG7640-0AB00 is a SIMATIC PXO210 M18S diffuse photoelectric sensor from Siemens — energetic (direct reflection) optics in a straight M18×52 barrel, rated for 500 mm sensing range on a light-on PNP output. Supply is 10-30 VDC, switching up to 150 mA, and it terminates in a 2 m PUR cable (3×0.34 mm²). The IP67 rating means it handles washdown and dusty conveyor environments without a secondary enclosure. The 500 mm diffuse range is the maximum for a standard white target (90% reflectance); real-world range on dark or matte surfaces will be shorter — factor 30-50% reduction for black targets. The PNP light-on output is sourcing (positive switch), so it mates directly with most PLC inputs that expect a +24 V signal when the target is present. The 2 m PUR cable is oil- and abrasion-resistant, suitable for drag chains or flexing applications, but the 3×0.34 mm² cross-section limits the cable run to about 30 m at 24 V before voltage drop becomes a concern. ## Signal Integrity Note In a plant with VFDs or welding gear nearby, the unshielded cable can pick up common-mode noise. If the signal is jittery, check the shield first — this sensor doesn't come with a shielded cable, so you'll want to run it in a separate metallic conduit or add a ferrite clamp near the sensor head. The IP67 housing is metal, so grounding the barrel through the mounting bracket helps shunt EMI to earth.","metaTitle":"Siemens 3RG7640-0AB00 SIMATIC PXO210 M18 Diffuse Sensor, PNP","metaDescription":"SIMATIC PXO210 M18 diffuse photoelectric sensor, 500mm range, PNP light-on, 10-30 VDC, IP67, 2m PUR cable. EOL hot — sourced to order via RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Photoelectric Sensors"],"specifications":{"Part #":"3RG7640-0AB00","Weight":"0.07 kgs","Category":"Photoelectric Sensors","Top Category":"Sensors","lifecycle_stage":"eol_hot"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$120.62","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=444418&mlfb=3RG7640-0AB00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RG7640-0AB00/alternatives.json"},"ai":{"faq":[{"question":"What is the sensing range and output type?","answer":"The diffuse sensing range is 500 mm on a standard white target, with a PNP light-on output that switches at 150 mA maximum. Supply voltage is 10-30 VDC."},{"question":"What cable does it come with?","answer":"A 2-meter PUR cable with 3 conductors of 0.34 mm² each. The cable is unshielded and oil-resistant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RG7640-0AB00","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/3RG7640-0AB00 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}}