{"product_id":"st2000fb-electrical-fire-monitoring-device","title":"ST2000FB Series Electrical Fire Monitoring Device","description":"\u003ch2\u003eST2000FB Series Electrical Fire Monitoring Device\u003c\/h2\u003e\u003cp\u003eThe ST2000FB Electrical Fire Monitoring Device integrates monitoring, alarm, and management functions in one unit. It is designed for centralized fire monitoring in large shopping malls, residential communities, industrial and mining enterprises, office buildings, and hotels. The device connects to electrical fire monitoring detectors via RS485 bus to form a complete electrical fire monitoring system, providing real-time monitoring of electrical circuit conditions.\u003c\/p\u003e\u003ch3\u003e1) Device Overview\u003c\/h3\u003e\u003cp\u003eThe ST2000FB monitors residual current and temperature signals from multiple detectors in real time. When residual current exceeds limits, over-temperature alarms occur, or power\/communication faults are detected, the device issues audible and visual alarm signals, displays fault location and alarm type on the LCD screen, and provides data storage, query, and alarm control output functions.\u003c\/p\u003e\u003ch3\u003e2) Model Variants\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eST2000FB\u003c\/strong\u003e — Connects to various electrical fire monitoring detectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eST2000FB-H\u003c\/strong\u003e — Connects to ST2000FB electrical fire monitoring devices\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eStandard configuration: 8-channel Modbus-RTU communication + 2-channel Ethernet; 2 digital inputs + 8 relay outputs.\u003c\/p\u003e\u003ch3\u003e3) Key Functions\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitoring \u0026amp; Alarm:\u003c\/strong\u003e Receives residual current and temperature data from multiple detectors; issues audible\/visual alarm within 10s; red \"ALARM\" LED lights up; LCD displays alarm location and type; alarm persists until reset\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFault Monitoring:\u003c\/strong\u003e Communication fault alarm when any detector loses connection; power fault alarm with visual\/audible indication\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl I\/O:\u003c\/strong\u003e 8 relay outputs for controlling protected circuits; 2 digital inputs for external status detection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHistorical Data:\u003c\/strong\u003e Stores alarm location, fault info, and timestamps in database; supports multiple query methods\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelf-Check:\u003c\/strong\u003e Automatic self-test on startup; manual self-check button for LEDs, buzzer, and detectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Power Supply:\u003c\/strong\u003e Auto-switchover between main and backup power; continuous operation guaranteed during switchover; LED indicators for both power states\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess Control:\u003c\/strong\u003e Two-level operation: Level 1 (no password) — silence alarm \u0026amp; query only; Level 2 (password) — self-check, reset, parameter setting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrint Function:\u003c\/strong\u003e Prints monitoring alarm events and fault events with timestamps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e4) Technical Specifications\u003c\/h3\u003e\u003ch4\u003eMonitoring Circuits\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMax. detectors: 512\u003c\/li\u003e\n\u003cli\u003eDetector types: Residual current type, Temperature type\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003ePower Supply\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMain power: AC 100~240V\u003c\/li\u003e\n\u003cli\u003eBackup power: DC 12V, backup duration ≥ 4h\u003c\/li\u003e\n\u003cli\u003ePower consumption: \u0026lt; 50W\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eDigital Input (Standard: 2 channels)\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIsolation: Optical isolation\u003c\/li\u003e\n\u003cli\u003eSupply: Internal or external DC 24V\u003c\/li\u003e\n\u003cli\u003eResponse time: ≤ 50ms\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eRelay Output (Standard: 8 channels)\u003c\/h4\u003e\u003cul\u003e\u003cli\u003eDO1~DO8: AC 250V \/ 5A, DC 30V \/ 5A\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eCommunication\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eModbus-RTU: 8 channels, RS485 interface, terminal connection\u003c\/li\u003e\n\u003cli\u003eModbus-TCP: 2 channels, Ethernet interface, RJ45 connection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAlarm\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlarm type: Audible and visual\u003c\/li\u003e\n\u003cli\u003eSound pressure: 70~115 dB\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOperating Environment\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOperating temperature: -10°C ~ +40°C\u003c\/li\u003e\n\u003cli\u003eStorage temperature: -20°C ~ +70°C\u003c\/li\u003e\n\u003cli\u003eRelative humidity: 5~95% (no condensation, no icing)\u003c\/li\u003e\n\u003cli\u003eAltitude: \u0026lt; 2500m\u003c\/li\u003e\n\u003cli\u003eProtection rating: IP20\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e5) Dimensions \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDevice body:\u003c\/strong\u003e Without mounting plate: 440mm × 330mm × 130mm (L×W×D); With mounting plate: 490mm × 330mm × 130mm (L×W×D)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eInstallation methods:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePanel mounting: Cutout 444mm × 334mm; fixing hole spacing 464mm × 276mm; hole diameter 9×7mm\u003c\/li\u003e\n\u003cli\u003eWall recessed mounting: Cutout 444mm × 334mm × 110mm; fixing hole spacing 464mm × 276mm; hole diameter 9×7mm\u003c\/li\u003e\n\u003cli\u003eWall surface mounting: Fixing hole spacing 280mm × 200mm; hole diameter 9×7mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e6) Why Choose Wanlong Electric\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFactory-direct from Suzhou, China — OEM and custom configurations available\u003c\/li\u003e\n\u003cli\u003eIEC certified, reliable performance for commercial and industrial applications\u003c\/li\u003e\n\u003cli\u003eFull technical support and fast delivery\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wanlong Electric Group Co., Ltd.","offers":[{"title":"Default Title","offer_id":44006733152322,"sku":null,"price":360.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0688\/1221\/0242\/files\/ST2000FB-1_84291c09-883d-4e76-bebd-f3f739242022.jpg?v=1784006636","url":"https:\/\/wanlongelectric.com\/products\/st2000fb-electrical-fire-monitoring-device","provider":"Wan Long Electric Group Co., Ltd.","version":"1.0","type":"link"}