{"product_id":"keyence-gl-r20h-type-4-light-curtain-20-beam-safety-sensor","title":"Keyence GL-R20H Type 4 Light Curtain 20 Beam Safety Sensor","description":"\u003ch2\u003e\u003cstrong\u003eKeyence GL-R20H Type 4 Safety Light Curtain — Hand Protection with 20 Beams\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Keyence\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003eGL-R20H\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries:\u003c\/strong\u003e GL-R series\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Type 4 safety light curtain, hand protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection capability:\u003c\/strong\u003e ø25 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBeam axes:\u003c\/strong\u003e 20 with 20 mm spacing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetection height:\u003c\/strong\u003e 380 mm; total length 400 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDetecting distance:\u003c\/strong\u003e 0.2 to 15 m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResponse time (OSSD ON→OFF):\u003c\/strong\u003e max. 6.6 ms\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight source:\u003c\/strong\u003e Infrared LED at 870 nm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEffective aperture angle:\u003c\/strong\u003e max. ±2.5° at 3 m or more\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply voltage:\u003c\/strong\u003e 24 VDC ±20%, ripple 10% or less, Class 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl output (OSSD):\u003c\/strong\u003e 2 transistor outputs, max. 500 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent consumption:\u003c\/strong\u003e Transmitter max. 53 mA; receiver max. 71 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e -10 to +55 °C, no freezing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage temperature:\u003c\/strong\u003e -25 to +60 °C, no freezing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelative humidity:\u003c\/strong\u003e 15 to 85 % RH operating; 15 to 95 % RH storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient light immunity:\u003c\/strong\u003e 3,000 lux incandescent; 20,000 lux sunlight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtection rating:\u003c\/strong\u003e IP65\/IP67 per IEC60529\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety standards:\u003c\/strong\u003e IEC61496-1\/-2 Type 4, IEC61508 SIL3, IEC62061 SIL CL3, EN ISO13849-1 Category 4 PLe, UL508, UL1998\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMC:\u003c\/strong\u003e IEC\/EN61496-1, EN55011 Class A, FCC Part15B Class A, ICES-003 Class A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e Transmitter 550 g; receiver 550 g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum main unit; nylon GF30 upper\/lower case; polycarbonate front cover with SUS304\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Performance and Environmental Resilience\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003eInterference prevention:\u003c\/strong\u003e\u003c\/span\u003e Up to 2 GL-R systems run side by side via Channel A\/B switch for optical sync or automatic for wire sync.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003eProtection circuit:\u003c\/strong\u003e\u003c\/span\u003e Reverse-current, per-output short-circuit, and surge protection keep the sensor stable in demanding electrical environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003eResidual voltage (ON):\u003c\/strong\u003e\u003c\/span\u003e max. 2.5 V with a 5 m cable; OFF-state voltage max. 2.0 V.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003eLeakage current:\u003c\/strong\u003e\u003c\/span\u003e max. 200 µA; max. capacitive load 2.2 µF; load wiring resistance max. 2.5 Ω.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003eSupplemental output:\u003c\/strong\u003e\u003c\/span\u003e AUX, error, and muting-lamp transistor output with max. 50 mA load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #c0392b;\"\u003e\u003cstrong\u003eOvervoltage category:\u003c\/strong\u003e\u003c\/span\u003e II, suitable for standard industrial control panels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eInstallation Guide\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMount the transmitter and receiver opposite each other using the aluminum housing mounting holes.\u003c\/li\u003e\n\u003cli\u003eAlign both units so the infrared beams reach the receiver within the ±2.5° effective aperture angle.\u003c\/li\u003e\n\u003cli\u003eKeep the detecting distance between 0.2 m and 15 m for reliable hand detection.\u003c\/li\u003e\n\u003cli\u003eSelect optical synchronization or wire synchronization according to your wiring layout and cable type.\u003c\/li\u003e\n\u003cli\u003eConnect the 24 VDC supply with ripple below 10% and confirm the Class 2 power source.\u003c\/li\u003e\n\u003cli\u003eWire the two PNP or NPN transistor OSSD outputs to the safety relay or controller.\u003c\/li\u003e\n\u003cli\u003eSet Channel A\/B when two GL-R systems operate close together to avoid optical interference.\u003c\/li\u003e\n\u003cli\u003eVerify the 6.6 ms response time meets the safety distance calculation for your machine.\u003c\/li\u003e\n\u003cli\u003eTest the detection zone with a ø25 mm test rod before commissioning the line.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003ePacking List\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGL-R20H transmitter unit (550 g)\u003c\/li\u003e\n\u003cli\u003eGL-R20H receiver unit (550 g)\u003c\/li\u003e\n\u003cli\u003eMounting brackets and screws\u003c\/li\u003e\n\u003cli\u003eInstruction sheet for the GL-R series\u003c\/li\u003e\n\u003cli\u003eProtective packaging for safe transport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eShipping and Support\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWe ship worldwide by FedEx, UPS, and DHL.\u003c\/li\u003e\n\u003cli\u003eStock items leave our warehouse within 5 days.\u003c\/li\u003e\n\u003cli\u003eWe accept returns within 30 days of delivery.\u003c\/li\u003e\n\u003cli\u003eAll units are brand new and original from Keyence.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What detection capability does the GL-R20H offer?\u003c\/strong\u003e\u003cbr\u003eA: The GL-R20H detects a ø25 mm object, which suits hand protection applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How many beam axes does this model have?\u003c\/strong\u003e\u003cbr\u003eA: It has 20 beam axes with 20 mm spacing and a 380 mm detection height.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What is the maximum detecting distance?\u003c\/strong\u003e\u003cbr\u003eA: The detecting distance ranges from 0.2 m to 15 m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How fast does the OSSD respond?\u003c\/strong\u003e\u003cbr\u003eA: The response time from ON to OFF is max. 6.6 ms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Can two GL-R systems work near each other?\u003c\/strong\u003e\u003cbr\u003eA: Yes, interference prevention supports up to 2 GL-R systems with Channel A\/B or automatic wire sync.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What protection rating does the housing carry?\u003c\/strong\u003e\u003cbr\u003eA: The unit carries IP65\/IP67 protection per IEC60529 for dusty and wet environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: What operating temperature range does it support?\u003c\/strong\u003e\u003cbr\u003eA: It operates from -10 to +55 °C without freezing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: How does the GL-R20H differ from the GL-R16H?\u003c\/strong\u003e\u003cbr\u003eA: The GL-R20H has 20 beams and a 400 mm total length, while the GL-R16H offers 16 beams and 320 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ: Is the GL-R20H available in stock?\u003c\/strong\u003e\u003cbr\u003eA: Yes, we keep brand new original stock and ship within 5 days.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keyence","offers":[{"title":"Default Title","offer_id":51041332035842,"sku":"GL-R20H","price":235.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7280\/6146\/files\/GL-R20H-2.jpg?v=1794541357","url":"https:\/\/www.nex-auto.com\/products\/keyence-gl-r20h-type-4-light-curtain-20-beam-safety-sensor","provider":"NexAuto Technology Limited","version":"1.0","type":"link"}