{"product_id":"integrated-motor-protection-distribution-electrical-fire-monitoring-solution","title":"Integrated Solution for Low-Voltage Motor Protection, Distribution Protection \u0026 Electrical Fire Monitoring System","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Electrical Fire Monitoring System continuously tracks and statistically analyzes the primary causes of electrical fires — including conductor temperature, current, voltage, and leakage current. It detects safety hazards in electrical circuits and equipment in real time (such as abnormal cable temperature, short circuits, overloads, overvoltage, undervoltage, and leakage), effectively preventing electrical fires.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0688\/1221\/0242\/files\/54859441.webp?v=1784526323\" alt=\"Integrated Motor Protection \u0026amp; Electrical Fire Monitoring Solution – ST520F+ST570, ST420F, ST2000FB\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003eGB 50016-2006 \u003cem\u003eCode for Fire Protection Design of Buildings\u003c\/em\u003e and GB 50045-1995 \u003cem\u003eCode for Fire Protection Design of High-Rise Civil Buildings\u003c\/em\u003e both specify that \"non-fire electrical loads in certain buildings or locations should be equipped with an electrical fire monitoring system.\" Shandong Province further mandated in Government Order No. 263 (2013) \u003cem\u003eRegulations on Fire Safety Management of High Fire-Risk Units in Shandong Province\u003c\/em\u003e that \"high fire-risk units shall install a residual current fire alarm system,\" with detailed implementation rules provided in DB 37\/T 2122—2012.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0688\/1221\/0242\/files\/54859438.webp?v=1784526323\" alt=\"Traditional vs Integrated Electrical Fire Monitoring System comparison diagram\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eProblem with Traditional Solutions\u003c\/h2\u003e\n\u003cp\u003eTraditional electrical fire monitoring systems are built independently from existing low-voltage motor protection and distribution protection systems, using additional residual current transformers or temperature sensors with separate detectors. In practice — especially in drawer-type switchgear — this approach presents several issues:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtection devices in motor and distribution circuits already have residual current and temperature detection. Adding a separate fire alarm residual current transformer creates installation problems: placing it inside the drawer cabinet risks open-circuit faults via secondary plug connections; mounting it on the cable outlet side is unreliable.\u003c\/li\u003e\n\u003cli\u003eElectrical fire monitoring detectors (one-to-many) have no suitable installation location and may occupy an entire modular drawer slot.\u003c\/li\u003e\n\u003cli\u003eRedundant investment in both fire monitoring detectors and leakage transformers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWanlong Integrated Solution\u003c\/h2\u003e\n\u003cp\u003eBased on the above challenges, Suzhou Wanlong Electric Group developed an \u003cstrong\u003eIntegrated Solution for Low-Voltage Motor Protection, Distribution Protection, and Electrical Fire Monitoring\u003c\/strong\u003e, combining the fire monitoring detector with motor circuit and distribution circuit protection devices into a single unit.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0688\/1221\/0242\/files\/54859443.webp?v=1784526323\" alt=\"ST420F Low-Voltage Distribution Circuit Integrated Fire Monitoring Solution\" style=\"float: none;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eAdvantages over Traditional Solutions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEliminates redundant investment in fire monitoring detectors and leakage transformers\u003c\/li\u003e\n\u003cli\u003eOptimized design — compact, reliable installation with fewer failure points\u003c\/li\u003e\n\u003cli\u003eUnified HMI for easy operation\u003c\/li\u003e\n\u003cli\u003eOptimized communication channels, reducing overall investment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0688\/1221\/0242\/files\/54859439.webp?v=1784526323\" alt=\"ST2000FB Electrical Fire Monitoring Device – supports 512 detectors, Ethernet + RS-485\" style=\"margin-bottom: 16px; float: none;\"\u003e\u003c\/div\u003e\n\u003ch2\u003eSolution Components\u003c\/h2\u003e\n\u003ch3\u003e(1) Low-Voltage Motor Circuit Integrated Solution — ST520F + ST570\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudible and visual alarm: ≥70 dB within 1 meter\u003c\/li\u003e\n\u003cli\u003eAlarm signal relay output: 3 channels, AC220V, resistive 10A\u003c\/li\u003e\n\u003cli\u003eThree residual current inputs: 50–1000 mA (typically 300 mA)\u003c\/li\u003e\n\u003cli\u003eCommunication: RS485, Modbus protocol\u003c\/li\u003e\n\u003cli\u003eDual certified: CCC and CCCF\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e(2) Low-Voltage Distribution Circuit Integrated Solution — ST420F\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMulti-function meter: accuracy Class 0.5\u003c\/li\u003e\n\u003cli\u003eFeeder protection with zero-sequence overcurrent protection\u003c\/li\u003e\n\u003cli\u003eResidual current electrical fire monitoring detector function\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e(3) Electrical Fire Monitoring Device — ST2000FB\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupports up to 512 electrical fire monitoring detectors\u003c\/li\u003e\n\u003cli\u003eSupports 2 DI and 8 DO channels\u003c\/li\u003e\n\u003cli\u003eUplink communication: 1× Ethernet port + 1× RS-485 port\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Wan Long Electric","offers":[{"title":"Default Title","offer_id":44272827924546,"sku":null,"price":8900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0688\/1221\/0242\/files\/ed33e94e5c893f48cb5b53c04aba2e5d.webp?v=1784527314","url":"https:\/\/wanlongelectric.com\/products\/integrated-motor-protection-distribution-electrical-fire-monitoring-solution","provider":"Wan Long Electric Group Co., Ltd.","version":"1.0","type":"link"}