{"product_id":"festo-sien-4b-po-k-l-inductive-proximity-switch","title":"Festo SIEN-4B-PO-K-L Inductive Proximity Switch","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"588\" class=\"\"\u003eThe \u003ca href=\"https:\/\/plgautomation.com\/collections\/festo\"\u003eFesto\u003c\/a\u003e SIEN-4B-PO-K-L \u003ca href=\"https:\/\/plgautomation.com\/collections\/industrial-switches\"\u003eProximity Switch\u003c\/a\u003e is used in pneumatic automation and machine control systems to detect the presence and position of metallic objects without physical contact. Commonly installed in pneumatic cylinders, assembly equipment, packaging machinery, material handling systems, and automated production lines requiring reliable position sensing and feedback signals. Maintenance teams and system integrators use this part for sensor replacements, automation retrofits, machine repairs, and OEM equipment maintenance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"590\" data-end=\"607\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"608\" data-end=\"1147\"\u003eThe Festo SIEN-4B-PO-K-L proximity switch is commonly used to provide non-contact position sensing in industrial automation systems. Typical applications for the SIEN-4B-PO-K-L include pneumatic actuators, pick-and-place systems, packaging equipment, conveyor systems, robotic cells, and factory automation machinery requiring compact inductive sensing and high switching reliability. The sensor is particularly suited for installation in space-constrained applications due to its compact 4 mm design.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1149\" data-end=\"1178\" class=\"PDq2pG_selectionAnchorContainer\"\u003eTechnical Specifications:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"1179\" data-end=\"2161\" class=\"\"\u003e• Manufacturer: Festo\u003cbr data-start=\"1200\" data-end=\"1203\"\u003e• Model \/ Part Number: SIEN-4B-PO-K-L\u003cbr data-start=\"1240\" data-end=\"1243\"\u003e• Product Type: Inductive Proximity Switch\u003cbr data-start=\"1285\" data-end=\"1288\"\u003e• Sensor Type: Inductive Proximity Sensor\u003cbr data-start=\"1329\" data-end=\"1332\"\u003e• Series: SIEN Series\u003cbr data-start=\"1353\" data-end=\"1356\"\u003e• Sensor Diameter: 4 mm\u003cbr data-start=\"1379\" data-end=\"1382\"\u003e• Mounting Type: Flush Mount\u003cbr data-start=\"1410\" data-end=\"1413\"\u003e• Rated Sensing Distance: 0.8 mm\u003cbr data-start=\"1445\" data-end=\"1448\"\u003e• Assured Sensing Distance: 0.64 mm\u003cbr data-start=\"1483\" data-end=\"1486\"\u003e• Switching Output: PNP\u003cbr data-start=\"1509\" data-end=\"1512\"\u003e• Switching Function: Normally Closed (NC)\u003cbr data-start=\"1554\" data-end=\"1557\"\u003e• Operating Voltage: 10 to 30 VDC\u003cbr data-start=\"1590\" data-end=\"1593\"\u003e• Maximum Output Current: 200 mA\u003cbr data-start=\"1625\" data-end=\"1628\"\u003e• Switching Frequency: Up to 3000 Hz\u003cbr data-start=\"1664\" data-end=\"1667\"\u003e• Electrical Connection: 3-wire cable connection\u003cbr data-start=\"1715\" data-end=\"1718\"\u003e• Cable Length: 2.5 m\u003cbr data-start=\"1739\" data-end=\"1742\"\u003e• Cable Material: PUR (Polyurethane)\u003cbr data-start=\"1778\" data-end=\"1781\"\u003e• Housing Material: High-alloy stainless steel\u003cbr data-start=\"1827\" data-end=\"1830\"\u003e• Protection Rating: IP67\u003cbr data-start=\"1855\" data-end=\"1858\"\u003e• Operating Temperature Range: -25°C to +70°C\u003cbr data-start=\"1903\" data-end=\"1906\"\u003e• Standards Compliance: EN 60947-5-2, CE, UL, RoHS\u003cbr data-start=\"1956\" data-end=\"1959\"\u003e• Application Environment: Industrial automation and pneumatic control systems\u003cbr data-start=\"2037\" data-end=\"2040\"\u003e• Typical Loads: Pneumatic cylinders, actuators, conveyors, and automated machinery \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2163\" data-end=\"2187\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2188\" data-end=\"2350\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Festo SIEN-4B-PS-K-L Proximity Switch\u003cbr data-start=\"2227\" data-end=\"2230\"\u003e• Festo SIEN-4B-NO-K-L Proximity Switch\u003cbr data-start=\"2269\" data-end=\"2272\"\u003e• SMC D-M9B Auto Switch Proximity Sensor\u003c\/p\u003e","brand":"PLG Automation ","offers":[{"title":"New","offer_id":51714376597806,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_3a55831e-809f-4332-b915-1883405e6895.jpg?v=1770424612","url":"https:\/\/plgautomation.com\/products\/festo-sien-4b-po-k-l-inductive-proximity-switch","provider":"PLG Automation ","version":"1.0","type":"link"}