{"product_id":"allen-bradley-871tm-b8c18-a2-inductive-proximity-sensor-18mm-dc-3-wire-normally-open-4-pin-micro-qd-871tmb8c18a2","title":"Allen-Bradley 871TM-B8C18-A2 Inductive Proximity Sensor 18mm DC 3-Wire 4-Pin Micro QD","description":"\u003ch3 data-section-id=\"nq8ynu\" data-start=\"0\" data-end=\"18\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"19\" data-end=\"528\"\u003eThe \u003ca href=\"https:\/\/plgautomation.com\/collections\/allen-bradley\"\u003eAllen‑Bradley \u003c\/a\u003e871TM‑B8C18‑A2 inductive \u003ca href=\"https:\/\/plgautomation.com\/collections\/sensors-measurement\"\u003eproximity senso\u003c\/a\u003er is a non‑contact metal detection sensor used to sense the presence of metallic targets in automated systems. Installed in industrial control panels, machine frames, and automation equipment to provide reliable object detection without physical contact. Maintenance teams, system integrators, and automation technicians use this sensor for replacement, retrofit, and system upgrades to improve position feedback, part detection, and control accuracy.\u003c\/p\u003e\n\u003ch3 data-section-id=\"plkbhx\" data-start=\"530\" data-end=\"549\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"550\" data-end=\"1017\"\u003eThe Allen‑Bradley 871TM‑B8C18‑A2 sensor is used in manufacturing automation, conveyor systems, packaging machinery, assembly lines, robotic cells, and material handling equipment to detect metal components, confirm part presence, and trigger control actions. Allen‑Bradley inductive sensors provide dependable metal detection in environments where non‑contact sensing enhances process reliability, reduces mechanical wear, and supports accurate machine control logic.\u003c\/p\u003e\n\u003ch3 data-section-id=\"68ulmp\" data-start=\"1019\" data-end=\"1050\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1051\" data-end=\"1807\"\u003e• Manufacturer: Rockwell Automation \/ Allen‑Bradley\u003cbr data-start=\"1102\" data-end=\"1105\"\u003e• Model \/ Part Number: 871TM‑B8C18‑A2\u003cbr data-start=\"1142\" data-end=\"1145\"\u003e• Product Type: Inductive Proximity Sensor\u003cbr data-start=\"1187\" data-end=\"1190\"\u003e• Sensing Range: 8 mm typical\u003cbr data-start=\"1219\" data-end=\"1222\"\u003e• Output Type: DC 3‑wire normally open (NO)\u003cbr data-start=\"1265\" data-end=\"1268\"\u003e• Connection: 4‑pin micro quick‑disconnect (QD)\u003cbr data-start=\"1315\" data-end=\"1318\"\u003e• Supply Voltage: 10–30 V DC\u003cbr data-start=\"1346\" data-end=\"1349\"\u003e• Output Configuration: NPN\/PNP—verify variant (commonly NPN NO)\u003cbr data-start=\"1413\" data-end=\"1416\"\u003e• Housing Style: 18 mm threaded cylindrical body\u003cbr data-start=\"1464\" data-end=\"1467\"\u003e• Protection Rating: IP67 (industrial dust\/water resistance)\u003cbr data-start=\"1527\" data-end=\"1530\"\u003e• Indicators: LED for power and output status\u003cbr data-start=\"1575\" data-end=\"1578\"\u003e• Response Frequency: High switching frequency for rapid detection\u003cbr data-start=\"1644\" data-end=\"1647\"\u003e• Mounting: Threaded body with lock nuts\u003cbr data-start=\"1687\" data-end=\"1690\"\u003e• Operating Temperature: Industrial ambient range\u003cbr data-start=\"1739\" data-end=\"1742\"\u003e• Application: Metal object detection, presence\/position feedback\u003c\/p\u003e\n\u003ch3 data-section-id=\"1ln9bp8\" data-start=\"1809\" data-end=\"1835\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1836\" data-end=\"1994\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Allen‑Bradley 871TM‑B8CP18‑A2 inductive sensor\u003cbr data-start=\"1884\" data-end=\"1887\"\u003e• Pepperl+Fuchs NBB8‑18GM50‑E2 inductive proximity sensor\u003cbr data-start=\"1944\" data-end=\"1947\"\u003e• Sick IM18‑02BPSZW1 inductive proximity sensor\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558363009326,"sku":"Surplus Original Box","price":218.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/871TM-B8C18-A2_1000x1000_08ef1862-620d-478e-9362-51a87d775c93.jpg?v=1752215369","url":"https:\/\/plgautomation.com\/products\/allen-bradley-871tm-b8c18-a2-inductive-proximity-sensor-18mm-dc-3-wire-normally-open-4-pin-micro-qd-871tmb8c18a2","provider":"PLG Automation ","version":"1.0","type":"link"}