{"title":"All Electrical Products | Low Voltage Equipment","description":"\u003ch1\u003eLow Voltage Electrical Equipment — Wan Long Electric, Suzhou\u003c\/h1\u003e\u003cp\u003eWan Long Electric is a professional manufacturer of \u003cstrong\u003eintelligent low voltage electrical equipment\u003c\/strong\u003e based in Suzhou, China. Our product range covers the full spectrum of low voltage power distribution and motor protection, designed for industrial, commercial, and infrastructure applications worldwide.\u003c\/p\u003e\u003ch2\u003eOur Product Range\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Low Voltage Switchgear\u003c\/strong\u003e — MNS, GCS, GGD type panels up to 6300A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Air Circuit Breaker (ACB)\u003c\/strong\u003e — 630A to 6300A, Icu up to 100kA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Molded Case Circuit Breaker (MCCB)\u003c\/strong\u003e — 16A to 1600A, electronic trip\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Transfer Switch (ATS)\u003c\/strong\u003e — 63A to 3200A, PC \u0026amp; CB class\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Protection Relay \/ Device\u003c\/strong\u003e — 0.1A to 630A, full motor protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAll products are manufactured to IEC international standards and are available for OEM\/ODM customization. Contact us for technical specifications, datasheets, and competitive pricing.\u003c\/p\u003e","products":[{"product_id":"intelligent-low-voltage-switchgear","title":"Intelligent Low Voltage Switchgear | MNS \/ GCS \/ GGD Type","description":"\u003ch1\u003eIntelligent Low Voltage Switchgear — Suzhou Manufacturer\u003c\/h1\u003e\u003cp\u003eWan Long Electric delivers \u003cstrong\u003eIntelligent Low Voltage Switchgear\u003c\/strong\u003e (MNS, GCS, GGD type) engineered for demanding industrial and commercial power distribution applications. Manufactured in Suzhou, China, our switchgear combines advanced digital intelligence with robust construction to ensure safe, reliable, and efficient power management.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Monitoring:\u003c\/strong\u003e Real-time measurement of voltage, current, power, and power factor via integrated smart meters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Design:\u003c\/strong\u003e Drawer-type (MNS\/GCS) and fixed-type (GGD) configurations for flexible installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Breaking Capacity:\u003c\/strong\u003e Rated current up to 6300A, short-circuit withstand current up to 100kA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArc Flash Protection:\u003c\/strong\u003e Compartmentalized busbar and cable sections minimize arc flash risk\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Communication:\u003c\/strong\u003e RS485 \/ Modbus RTU \/ Profibus DP interface for SCADA integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Certification:\u003c\/strong\u003e Compliant with IEC 61439-1\u0026amp;2, GB 7251 standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRated Voltage: 380V \/ 400V \/ 415V AC (up to 660V available)\u003c\/li\u003e\n\u003cli\u003eRated Current: 630A – 6300A\u003c\/li\u003e\n\u003cli\u003eProtection Degree: IP30 \/ IP40 \/ IP54 (optional)\u003c\/li\u003e\n\u003cli\u003eBusbar Material: High-conductivity copper or aluminum\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -5°C to +40°C\u003c\/li\u003e\n\u003cli\u003eHumidity: ≤90% RH (non-condensing)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eIndustrial plants and factories\u003c\/li\u003e\n\u003cli\u003ePower generation and distribution substations\u003c\/li\u003e\n\u003cli\u003eCommercial buildings and data centers\u003c\/li\u003e\n\u003cli\u003eWater treatment and pumping stations\u003c\/li\u003e\n\u003cli\u003eOil \u0026amp; gas facilities\u003c\/li\u003e\n\u003cli\u003eRenewable energy (solar\/wind) power systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose Wan Long Electric?\u003c\/h2\u003e\u003cp\u003eWith over 20 years of manufacturing experience in Suzhou, Wan Long Electric has supplied intelligent low voltage switchgear to customers across Southeast Asia, the Middle East, Africa, and Europe. Our factory holds ISO 9001 certification and our products are tested to IEC international standards. We offer OEM\/ODM services, custom engineering, and full technical support.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRequest a quote today\u003c\/strong\u003e and our engineering team will respond within 24 hours.\u003c\/p\u003e","brand":"Wan Long Electric","offers":[{"title":"Default Title","offer_id":43882418733122,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}]},{"product_id":"intelligent-air-circuit-breaker-acb","title":"Intelligent Air Circuit Breaker (ACB) | Up to 6300A","description":"\u003ch1\u003eIntelligent Air Circuit Breaker (ACB) — Suzhou Manufacturer\u003c\/h1\u003e\u003cp\u003eWan Long Electric's \u003cstrong\u003eIntelligent Air Circuit Breaker (ACB)\u003c\/strong\u003e is designed for low-voltage power distribution systems requiring high-current protection and intelligent control. Ideal for main incoming and bus-coupler applications in industrial plants, data centers, and large commercial buildings.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Electronic Trip Unit:\u003c\/strong\u003e Overload (L), short-circuit (S\/I), ground fault (G), and neutral protection with adjustable settings\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Rated Current:\u003c\/strong\u003e 630A to 6300A in fixed and draw-out versions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Breaking Capacity:\u003c\/strong\u003e Icu up to 100kA at 400V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD Display:\u003c\/strong\u003e Real-time display of current, voltage, power, energy, and fault records\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Interface:\u003c\/strong\u003e RS485 \/ Modbus RTU \/ Profibus DP \/ Ethernet (optional)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZone Selective Interlocking (ZSI):\u003c\/strong\u003e Minimizes fault clearing time and arc flash energy\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Mechanism:\u003c\/strong\u003e Remote electrical open\/close operation available\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRated Voltage: 400V \/ 690V AC\u003c\/li\u003e\n\u003cli\u003eRated Current (In): 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A, 3200A, 4000A, 5000A, 6300A\u003c\/li\u003e\n\u003cli\u003eRated Ultimate Breaking Capacity (Icu): 65kA – 100kA @ 400V\u003c\/li\u003e\n\u003cli\u003eRated Service Breaking Capacity (Ics): 100% Icu\u003c\/li\u003e\n\u003cli\u003ePoles: 3P \/ 4P\u003c\/li\u003e\n\u003cli\u003eType: Fixed \/ Draw-out (Withdrawable)\u003c\/li\u003e\n\u003cli\u003eStandards: IEC 60947-2, GB 14048.2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMain incoming circuit breaker in low voltage switchgear panels\u003c\/li\u003e\n\u003cli\u003eBus-coupler and bus-section breakers\u003c\/li\u003e\n\u003cli\u003eGenerator protection and synchronization panels\u003c\/li\u003e\n\u003cli\u003eData center power distribution units (PDU)\u003c\/li\u003e\n\u003cli\u003eMarine and offshore power systems\u003c\/li\u003e\n\u003cli\u003eUtility substations and transformer secondary protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose Wan Long Electric?\u003c\/h2\u003e\u003cp\u003eOur ACBs are manufactured under strict ISO 9001 quality management and fully tested to IEC 60947-2 standards. We offer complete customization including trip unit settings, communication protocols, and panel integration support. With fast lead times from our Suzhou factory and global shipping, we serve customers in over 30 countries.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eContact us for a technical consultation and competitive quote.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Wan Long Electric","offers":[{"title":"Default Title","offer_id":43882457858114,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}]},{"product_id":"intelligent-molded-case-circuit-breaker-mccb","title":"Intelligent Molded Case Circuit Breaker (MCCB) | 16A-1600A","description":"\u003ch1\u003eIntelligent Molded Case Circuit Breaker (MCCB) — Suzhou Manufacturer\u003c\/h1\u003e\u003cp\u003eWan Long Electric’s \u003cstrong\u003eIntelligent Molded Case Circuit Breaker (MCCB)\u003c\/strong\u003e provides reliable overcurrent and short-circuit protection for low-voltage distribution systems. With an integrated electronic trip unit and optional communication module, it delivers both protection and intelligent monitoring in a compact molded case design.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectronic Trip Unit:\u003c\/strong\u003e Adjustable overload (Ir), short-circuit (Im), and ground fault (Ig) protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Current Range:\u003c\/strong\u003e 16A to 1600A to cover diverse application needs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Breaking Capacity:\u003c\/strong\u003e Icu up to 100kA at 400V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Design:\u003c\/strong\u003e Space-saving molded case for panel board and switchgear installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptional Communication:\u003c\/strong\u003e RS485 \/ Modbus RTU for remote monitoring and control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessories:\u003c\/strong\u003e Auxiliary contacts, shunt trip, under-voltage release, rotary handle, door coupling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Magnetic or Electronic Trip:\u003c\/strong\u003e Available in both versions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRated Voltage: 400V \/ 690V AC\u003c\/li\u003e\n\u003cli\u003eRated Current (In): 16A, 32A, 63A, 100A, 160A, 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A\u003c\/li\u003e\n\u003cli\u003eRated Ultimate Breaking Capacity (Icu): 36kA – 100kA @ 400V\u003c\/li\u003e\n\u003cli\u003ePoles: 3P \/ 4P\u003c\/li\u003e\n\u003cli\u003eMounting: Fixed \/ Plug-in \/ Draw-out\u003c\/li\u003e\n\u003cli\u003eStandards: IEC 60947-2, GB 14048.2\u003c\/li\u003e\n\u003cli\u003eProtection Degree: IP40 (front face)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFeeder and branch circuit protection in LV switchgear\u003c\/li\u003e\n\u003cli\u003eMotor branch circuit protection\u003c\/li\u003e\n\u003cli\u003eDistribution boards in commercial and industrial buildings\u003c\/li\u003e\n\u003cli\u003ePump, compressor, and HVAC system protection\u003c\/li\u003e\n\u003cli\u003eRenewable energy inverter output protection\u003c\/li\u003e\n\u003cli\u003eMarine and transportation power systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose Wan Long Electric?\u003c\/h2\u003e\u003cp\u003eOur MCCBs are manufactured in our modern Suzhou facility with full IEC 60947-2 type testing. We offer a complete range from 16A to 1600A with both thermal-magnetic and electronic trip options. Custom ratings, accessories, and OEM branding are available. Our engineering team provides full application support and panel integration assistance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGet in touch for pricing and technical specifications.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Wan Long Electric","offers":[{"title":"Default Title","offer_id":43882459365442,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}]},{"product_id":"automatic-transfer-switch-ats","title":"Automatic Transfer Switch (ATS) | Dual Power Changeover","description":"\u003ch1\u003eAutomatic Transfer Switch (ATS) — Suzhou Manufacturer\u003c\/h1\u003e\u003cp\u003eWan Long Electric’s \u003cstrong\u003eAutomatic Transfer Switch (ATS)\u003c\/strong\u003e ensures uninterrupted power supply by automatically transferring electrical loads from a primary power source to a backup source (generator or second utility feed) within milliseconds of detecting a power failure. Engineered for critical applications where power continuity is essential.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Transfer Time:\u003c\/strong\u003e Automatic changeover in \u0026lt;100ms (PC class) or \u0026lt;60ms (CB class)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Controller:\u003c\/strong\u003e Microprocessor-based controller with LCD display, voltage\/frequency monitoring, and programmable time delays\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Power Monitoring:\u003c\/strong\u003e Continuously monitors both normal and emergency power sources\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManual Override:\u003c\/strong\u003e Manual operation capability for maintenance and testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Interface:\u003c\/strong\u003e RS485 \/ Modbus RTU for remote monitoring and SCADA integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Voltage Range:\u003c\/strong\u003e Suitable for 3-phase 380V\/400V\/415V and single-phase 220V\/230V systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePC Class \u0026amp; CB Class:\u003c\/strong\u003e Both overlapping (PC) and non-overlapping (CB) transfer types available\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRated Voltage: 230V \/ 400V \/ 415V AC (1P+N or 3P+N)\u003c\/li\u003e\n\u003cli\u003eRated Current: 63A, 100A, 160A, 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, 3200A\u003c\/li\u003e\n\u003cli\u003eTransfer Time: \u0026lt;100ms (PC class); \u0026lt;60ms (CB class)\u003c\/li\u003e\n\u003cli\u003ePoles: 2P \/ 3P \/ 4P\u003c\/li\u003e\n\u003cli\u003eStandards: IEC 60947-6-1, GB 14048.11\u003c\/li\u003e\n\u003cli\u003eProtection Degree: IP30 \/ IP40\u003c\/li\u003e\n\u003cli\u003eOperating Temperature: -25°C to +70°C\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHospitals and healthcare facilities (critical power)\u003c\/li\u003e\n\u003cli\u003eData centers and server rooms\u003c\/li\u003e\n\u003cli\u003eTelecommunications and broadcast stations\u003c\/li\u003e\n\u003cli\u003eIndustrial plants with generator backup\u003c\/li\u003e\n\u003cli\u003eCommercial buildings and shopping malls\u003c\/li\u003e\n\u003cli\u003eWater treatment and pumping stations\u003c\/li\u003e\n\u003cli\u003eEmergency lighting and fire protection systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose Wan Long Electric?\u003c\/h2\u003e\u003cp\u003eOur ATS products are designed and manufactured in Suzhou to IEC 60947-6-1 standards. We offer both PC-class (overlapping) and CB-class (non-overlapping) transfer switches with intelligent microprocessor controllers. Custom current ratings, enclosure types, and communication options are available. Our products are trusted in critical power applications across Asia, the Middle East, and Africa.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eRequest a datasheet or quote from our engineering team today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Wan Long Electric","offers":[{"title":"Default Title","offer_id":43882460446786,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}]},{"product_id":"motor-protection-relay-device","title":"Motor Protection Relay \/ Device | Intelligent Motor Protection","description":"\u003ch1\u003eMotor Protection Relay \/ Device — Suzhou Manufacturer\u003c\/h1\u003e\u003cp\u003eWan Long Electric’s \u003cstrong\u003eIntelligent Motor Protection Relay\u003c\/strong\u003e provides comprehensive protection for AC induction motors against overload, phase failure, phase unbalance, locked rotor, thermistor overtemperature, and ground fault. Designed for industrial motor control centers (MCC) and standalone motor starters, it maximizes motor uptime and extends motor life.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Protection Functions:\u003c\/strong\u003e Overload, phase loss, phase reversal, phase unbalance, locked rotor, stall, thermistor (PTC\/NTC), ground fault, undercurrent\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Current Setting Range:\u003c\/strong\u003e 0.1A to 630A (via built-in CT or external CT)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntelligent Self-Learning:\u003c\/strong\u003e Automatic motor parameter learning for optimized protection thresholds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLCD Display:\u003c\/strong\u003e Real-time motor current, voltage, power, temperature, and fault history\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommunication Interface:\u003c\/strong\u003e RS485 \/ Modbus RTU for MCC and SCADA integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrip Class:\u003c\/strong\u003e Class 5, 10, 20, 30 selectable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Relays:\u003c\/strong\u003e Trip relay, alarm relay, and ready relay outputs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSupply Voltage: 85–265V AC\/DC (universal) or 24V DC\u003c\/li\u003e\n\u003cli\u003eCurrent Setting Range: 0.1A – 630A\u003c\/li\u003e\n\u003cli\u003eTrip Class: Class 5 \/ 10 \/ 20 \/ 30 (IEC 60947-4-1)\u003c\/li\u003e\n\u003cli\u003ePhase Unbalance Detection: ≥5% unbalance triggers alarm; ≥15% triggers trip\u003c\/li\u003e\n\u003cli\u003eResponse Time (Phase Loss): \u0026lt;500ms\u003c\/li\u003e\n\u003cli\u003eThermistor Input: PTC \/ NTC compatible\u003c\/li\u003e\n\u003cli\u003eStandards: IEC 60947-4-1, IEC 60255, GB 14048.4\u003c\/li\u003e\n\u003cli\u003eMounting: DIN rail or panel mount\u003c\/li\u003e\n\u003cli\u003eProtection Degree: IP40 (front face)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eMotor Control Centers (MCC) in industrial plants\u003c\/li\u003e\n\u003cli\u003ePump and compressor motor protection\u003c\/li\u003e\n\u003cli\u003eFan, blower, and HVAC motor protection\u003c\/li\u003e\n\u003cli\u003eConveyor and crane motor protection\u003c\/li\u003e\n\u003cli\u003eWater and wastewater treatment plant motors\u003c\/li\u003e\n\u003cli\u003eMining and heavy industry motor applications\u003c\/li\u003e\n\u003cli\u003eOil \u0026amp; gas processing equipment motors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhy Choose Wan Long Electric?\u003c\/h2\u003e\u003cp\u003eOur motor protection relays are engineered for reliability in the harshest industrial environments. Manufactured in Suzhou with full IEC 60947-4-1 compliance, they offer superior protection accuracy and easy integration into existing motor control systems via Modbus RTU. We provide OEM\/ODM services, custom current ranges, and full technical documentation in English.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eContact our team for application support and a competitive quotation.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Wan Long Electric","offers":[{"title":"Default Title","offer_id":43882462478402,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}]}],"url":"https:\/\/wanlongelectric.com\/collections\/all-electrical-products.oembed","provider":"Wan Long Electric Group Co., Ltd.","version":"1.0","type":"link"}