{"product_id":"tyco-minerva-conventional-intrinsically-safe-enhanced-optical-smoke-detector-516-054-011-y-mr601tex-copy","title":"Tyco, Addressable Optical Smoke \u0026 Heat Multi-Sensor Detector - 516.850.055 (851PH)","description":"\u003cp\u003eThe Tyco 851PH (Part Number: 516.850.055) is an addressable marine optical smoke and heat multi-sensor detector designed for MZX Technology fire alarm systems. It combines photoelectric smoke detection with thermal sensing to identify both slow-smouldering and fast-flaming fires across marine, offshore, light industrial, and commercial environments.\u003c\/p\u003e\n\u003cp\u003eKey Capabilities \u0026amp; Design\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Sensor Detection\u003c\/strong\u003e:  Combines light-scattering optical smoke sensing with a thermal heat sensor to catch both slow smouldering fires and fast flaming fires.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Line Isolator\u003c\/strong\u003e:  Integrated short-circuit loop isolator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine \u0026amp; Safety Approvals\u003c\/strong\u003e:  Approved by major classification societies (such as Bureau Veritas) for marine and offshore installations, plus SIL2 Certified for safety-critical systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrift Compensation\u003c\/strong\u003e: Extended automated drift compensation to maintain stable sensitivity as dust and age affect the chamber.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Way IR Communication\u003c\/strong\u003e: Compatible with the 850EMT Engineering Management Tool for testing, configuration, and diagnostics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Bases\u003c\/strong\u003e: Works with standard and isolator bases such as the 4B, 4B-C, and 4BI\/5BI series (sold separately).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTechnical Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number \/ SKU\u003c\/strong\u003e: 516.850.055\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSensor Type\u003c\/strong\u003e: Combined optical smoke and heat multi-sensor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Voltage\u003c\/strong\u003e: 20–40 VDC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuiescent Current\u003c\/strong\u003e: 380 µA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlarm Current\u003c\/strong\u003e: 3.3 mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: Diameter 108 mm × Height 42 mm (Height 43 mm \/ Dia 109 mm depending on housing bezel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 76 g (excluding base)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: -25°C to +70°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e: -40°C to +80°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelative Humidity\u003c\/strong\u003e: Up to 95% (non-condensing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHousing Material\u003c\/strong\u003e: Flame retardant FR3010 'BAYBLEND' (White)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Indications\u003c\/strong\u003e: Fire, isolate, and fault indicators\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Certification\u003c\/strong\u003e:  SIL2 certified and approved by major marine classification societies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tyco USA","offers":[{"title":"Default Title","offer_id":67957424226357,"sku":"851PH","price":400.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0055\/2842\/0405\/files\/851PH_A_97c52435-3607-471e-8200-917ec24841b3.jpg?v=1794545284","url":"https:\/\/www.allbright.com.sg\/products\/tyco-minerva-conventional-intrinsically-safe-enhanced-optical-smoke-detector-516-054-011-y-mr601tex-copy","provider":"AllBright Technology Pte Ltd","version":"1.0","type":"link"}