Acer Veriton S2690G i5 12th gen DT.VWMEM.00K Part Number Shared VGA SIZE 8GB BRAND Acer SOCKET LGA1700 MISC NO OS CHIPSET Intel Core i5-12400
CPU CELERON 1.8GHZ , 4GB RAM , SSD 128GB DOUBLE DISPLAY 1 YEAR WARRANTY
Looking for a seamless computing experience? Look no further than the Dell Inspiron AIO 5420. This all-in-one desktop combines power, style, and functionality to meet all your computing needs. With its sleek design and compact form factor, the Inspiron AIO 5420 saves space without compromising performance. Say goodbye to cluttered desks and hello to a clean and organized workspace. Transitioning to performance, this desktop packs a punch with its powerful processor and ample RAM. Whether you’re multitasking, streaming content, or working on creative projects, expect smooth and responsive performance every time. Moreover, the vibrant display of the Inspiron AIO 5420 brings your content to life with vivid colors and sharp details. Whether you’re watching movies, editing photos, or browsing the web, enjoy an immersive viewing experience like never before. Furthermore, the built-in webcam and microphone make video conferencing a breeze. Stay connected with friends, family, and colleagues from the comfort of your home with crisp audio and clear visuals. In addition, the Inspiron AIO 5420 offers ample storage space for all your files, documents, and multimedia content. Say goodbye to storage woes and hello to a clutter-free digital life. In conclusion, the Dell Inspiron AIO 5420 is your ultimate all-in-one solution for productivity and entertainment. With its powerful performance, stunning display, and versatile features, it’s the perfect addition to any home or office setup. Upgrade your computing experience today with the Dell Inspiron AIO 5420. Specifications: CPU : Intel Core i7-1355U RAM : 16GB Storage : 512GB SSD NVMe GPU : Intel Iris Xe OS : Windows 11 Pro Screen : 23.8″, FHD 1920×1080, 60Hz, AIT Touch Color : White
Dell OptiPlex 3280 All-in-One Desktop 210-AVPP-I3 Tech Specs Processor 10th Gen Intel® Core™ i3-10105T (6 MB cache, 4 cores, 8 threads, 3.00 GHz to 3.90 GHz Turbo, 35 W) Operating System Windows 10 Pro (Windows 11 Pro license included), English, French, Spanish Graphics Card Intel® Integrated Graphics Monitor OptiPlex All-in-One Non-Touch Panel Memory * 8 GB, 1 x 8 GB, DDR4 Hard Drive 256 GB, M.2 2230, PCIe NVMe, SSD, Class 35 Security Software No anti-virus software Protect your purchase – View Support offers below * 3 Years Hardware Service with Onsite/In-Home Service After Remote Diagnosis Accidental Damage Service None Keyboard Dell KB216 Wired Keyboard English, US Specifications: Dell OptiPlex 3280 All-in-One Desktop Tech Specs Processor 10th Gen Intel® Core™ i3-10105T (6 MB cache, 4 cores, 8 threads, 3.00 GHz to 3.90 GHz Turbo, 35 W) Operating System Windows 10 Pro (Windows 11 Pro license included), English, French, Spanish Graphics Card Intel® Integrated Graphics Monitor OptiPlex All-in-One Non-Touch Panel 1 Year Warranty
The HP Pro Tower 290 G9 B70SMAT$ABV delivers reliable performance with its Intel Core i3-13100 processor, featuring 4 cores and 8 threads running at up to 4.5GHz. As a result, it handles office applications, multitasking, and daily computing tasks efficiently, making it ideal for small businesses, home offices, and students. Equipped with 8GB of RAM and a 512GB NVMe SSD, this desktop provides fast and responsive performance. In addition, the storage ensures quick boot times and ample space for files, applications, and media. Therefore, users can complete tasks without lag or delays. The system comes with Intel UHD Graphics 730 for basic multimedia and business graphics needs. Furthermore, it includes VGA and HDMI ports, WiFi, and Bluetooth for easy connectivity with displays, peripherals, and networks. Moreover, the package includes a keyboard and mouse, offering a complete desktop setup out of the box. HP designed this tower with DOS pre-installed, giving users the flexibility to install their preferred operating system. Consequently, it adapts to various office and home setups. Overall, the HP Pro Tower 290 G9 combines dependable hardware, essential features, and connectivity options for a versatile and practical desktop solution. This desktop is an excellent choice for users seeking a reliable, ready-to-use PC for professional and personal use. Specifications: Intel Core i3-13100 CPU 4C 8T 4.5GHz for smooth performance 8GB RAM for multitasking 512GB NVMe SSD for fast storage and boot Intel UHD 730 graphics with VGA and HDMI ports WiFi, Bluetooth, keyboard and mouse included, DOS OS
Specifications : HP PRO DESK 400 G7 I7-10Th Gen. 4GB RAM 1 TB SATA Intel UHD KEY+ MOUSE Dos manufacturer link 1 Year Warranty
Specifications : CORE I7 11700 4GB DDR4 1TB HDD DVDRW | Card Reader USB Keyboard & Mouse Integrated Intel UHD Graphics 750 DOS 1 Year Warranty manufacturer link
*Free Assembly and Delivery All Over Lebanon The Gaming Desktop Offer 2024-17 delivers high-performance gaming and productivity in one complete setup. First, it features an AMD Ryzen 7-7800X3D processor for ultra-fast performance in games and demanding applications. In addition, 32GB DDR5 6000MHz RAM ensures smooth multitasking and high-speed operation. Moreover, the MSI RTX 5070 12GB Ventus 2X OC graphics card delivers stunning visuals and high frame rates. The system includes a GIGABYTE B650M Gaming WiFi motherboard, 1TB Kingston NVMe SSD, and DeepCool AG400 Digital ARGB CPU air cooler. Finally, the DarkFlash DS900 Black case and AeroCool VX Plus Stealth 750W power supply provide style, airflow, and reliable power. This desktop is ideal for gamers seeking performance, reliability, and aesthetics. Specifications: CPU :AMD CPU RYZEN 7-7800X3D Board : GIGABYTE B650M Gaming WIFI AM5 Ram : KINGSTON F 16GB DDR5 6000 BLK RAM KF560C36BBE2-16 x 2 32gb GPU : MSI 5070 12G VENTUS 2X OC VGA GRAPHIC CARD 3 years warranty Case : DARK FLASH DS900 BLACK DESKTOP CASE 97675 Cooler : DEEPCOOL AG400 DIGITAL ARGB CPU AIR COOLER BLACK PSU : AEROCOOL VX PLUS STEALTH 750W POWER SUPPLY NVMe: KINGSTON NV3 NVME 1tb the image may differ from the original product
The Lenovo V30a-22IIL AIO offers a perfect blend of performance and style, making it ideal for both home and office use. This all-in-one PC simplifies your workspace, combining the monitor and computer into one sleek unit. Setting up the Lenovo V30a-22IIL AIO is quick and easy. Just plug in, power up, and you’re ready to go. No complex wiring or setup procedures needed. With its powerful Intel processor, the Lenovo AIO handles everyday tasks with ease. From browsing the web to running multiple applications, it delivers smooth and efficient performance. The 21.5-inch Full HD display of the Lenovo V30a-22IIL AIO ensures clear and vibrant visuals. Whether you’re working on documents or streaming videos, you’ll enjoy crisp and detailed images. Designed with productivity in mind, this AIO PC comes with ample storage and memory. Store all your important files and run multiple applications simultaneously without a hitch. The Lenovo AIO also features integrated speakers, providing clear and immersive audio for video calls, music, and more. Enjoy a complete multimedia experience with this all-in-one PC. In addition to its performance, the Lenovo AIO boasts a space-saving design. Its compact form factor helps declutter your desk, giving you a neat and organized workspace. Security is a priority with the Lenovo AIO, featuring a webcam privacy cover and smart USB protection. Keep your data and privacy secure with these built-in features. In conclusion, the Lenovo V30a-22IIL AIO is an excellent choice for those seeking efficiency and elegance in a single package. Upgrade your workspace with this all-in-one PC and enjoy seamless productivity and entertainment. Specifications: CPU : Intel Core i3-1005G1 RAM : 4GB Storage : 250GB SSD NVMe OS : No OS Screen : 21.5″ FHD (1920×1080) IPS Anti-Glare + 720P Camera Connections : Wifi, Bluetooth Peripherals : Calliope Wired Keyboard (arabic) Part Number : 11LC0039UM
Acer DT.BHUEM.002 ACER Aspire TC-1760 Intel Core i5-12400 8GB DDR4 | 512GB NVMe SSD DVDW |Intel UHD grahics 730 | Gb LAN Support for 2x HDD 3.5 WiFi + Bluetooth with front Hidden Antennas Dual HDMI | 5x Rear USB Ports (1x USB 3 + 4x USB 2) Front USB 3 + Type C Headphone Cobo + Mic Jack | SD Card Reader Included Slim USB Numlock Keyboard + USB Optical Mouse Specifications: Specifications Intel Core i5-12400 8GB DDR4 | 512GB NVMe SSD DVDW Intel UHD grahics 730 Front USB 3 + Type C Headphone Cobo + Mic Jack | SD Card Reader Included Slim USB Numlock Keyboard + USB Optical Mouse 1 year warranty
The Beco GS3000 3000VA 1800W UPS delivers powerful backup power for demanding home, office, and business setups. It supports high-performance desktops, servers, and networking systems. This UPS helps prevent data loss and sudden shutdowns during power outages. Users enjoy dependable protection while working and gaming. Moreover, the Beco GS3000 3000VA 1800W UPS offers a strong 3000 VA capacity with 1800 W output power for heavy electrical loads. It keeps multiple devices powered longer during interruptions. This improves system stability and uptime. Reliability stays consistent under heavy use. In addition, the UPS features built-in surge protection for shielding electronics against voltage spikes. It guards your devices from electrical damage. This adds extra peace of mind during storms and unstable power. Protection remains strong and consistent. Furthermore, the Beco GS3000 3000VA 1800W UPS includes automatic voltage regulation to correct lows and highs. It balances voltage without manual input. As a result, connected systems receive steady power. This helps prolong device lifespan. Also, the UPS delivers reliable battery backup when electricity fails. You can save work and safely shut down devices before the battery runs out. This prevents data corruption and interruptions. Backup support feels dependable. In addition, the Beco GS3000 3000VA 1800W UPS includes clear LED indicators for easy status checks. You can monitor power and battery conditions at a glance. Monitoring becomes simple and intuitive. Users stay informed. Moreover, the UPS supports multiple output sockets for connecting many devices. This increases flexibility for busy workstations, servers, and media setups. You can protect key electronics with one unit. Furthermore, the Beco GS3000 3000VA 1800W UPS supports plug-and-play installation without complex steps. Setup is fast and stress-free for all users. Connections remain secure and organized. Also, the sturdy and compact design fits desks, shelves, and racks without taking much space. It blends well into office and home environments. Overall, the Beco GS3000 3000VA 1800W UPS delivers strong battery backup, surge protection, and steady voltage regulation. This UPS is ideal for users who need powerful and dependable power protection daily. Specifications: 3000VA, 1800W, LCD, Metal Case Input: 145-290 VAC Output: 230VAC 50/60HZ 12V 9AH *4pcs, Universal Socket *4 + EU Plug With AVR, Bypass output Overload and short circuit protection
The PROLINK PRO700 Line Interactive UPS is designed to provide reliable backup power and protection for computers, networking devices, and other electronic equipment. It helps maintain stable operation during power interruptions and voltage fluctuations. With a 650VA capacity and 360W output power, this UPS provides practical power support for home and office environments. Additionally, its line-interactive design with AVR technology helps regulate voltage and improve power stability. The PRO700 supports a wide input voltage range from 140V to 300V AC. Moreover, it automatically senses 50Hz or 60Hz input frequency, allowing compatibility with different power environments. The UPS provides simulated sine wave output during battery mode and sine wave output during AC mode. Furthermore, the fast transfer time helps reduce interruptions when switching to battery operation. The built-in 12V 8.2Ah battery provides backup power for connected devices during outages. Therefore, users can safely save work and shut down equipment during unexpected power failures. The PROLINK PRO700 includes protection features against short circuits, overloads, discharge, and overcharge conditions. In addition, its intelligent battery management helps improve battery protection and lifespan. The compact design makes the UPS suitable for desktops, network equipment, and small office setups. Also, its low noise operation allows comfortable use in different working environments. The PROLINK PRO700 Line Interactive UPS combines voltage regulation, backup power, and essential protection features in a compact solution. As a result, it provides dependable power support for everyday electronic devices. Specifications: Capacity: 650VA / 360W Input Voltage Range: 140V–300V AC ±5% Battery: 12V / 8.2Ah sealed lead-acid battery Output Waveform: Simulated sine wave (Battery Mode) Protection: Short circuit, overload, discharge, and overcharge protection
The PCE EX Online 6 KVA 5400W is a high-capacity online UPS built for strong power protection in offices and business environments. This UPS delivers clean and stable electricity even during severe power issues. Moreover, its true double-conversion design removes surges, sags, and spikes for safe device operation. Therefore, it fits companies and users who need dependable backup without interruption. First, the PCE EX Online 6 KVA 5400W supplies pure sine wave output for sensitive electronics like servers, workstations, and networking gear. This helps protect your devices from damage and performance drops. In addition, the online design ensures seamless switching between mains and battery power. As a result, connected equipment stays powered without sudden shutdowns during outages. Next, this UPS supports a high load capacity for multiple systems at once. You can run large setups including computers, storage units, and critical machinery. Furthermore, advanced battery management maximizes runtime and extends battery health. This means longer backup support when power cuts last. Meanwhile, the LCD display shows real-time status, load, and battery info for easy monitoring. The durable build quality makes the unit reliable for daily heavy use and long operational hours. Additionally, installation and setup are quick, with minimal steps required. Consequently, you save time and avoid complex configurations. Also, the UPS includes advanced safety features to prevent overloads and short circuits for extra peace of mind. Smart communication options integrate with software for automatic shutdown and alert notifications. This keeps systems protected even when you are away. Moreover, the UPS runs quietly and remains cool under full load without noise disruption. Therefore, it fits well in busy workspaces without distraction. Overall, the PCE EX Online 6 KVA 5400W delivers seamless power backup, strong protection, and stable performance. It provides great value for users who need reliable power security for critical systems. Specifications: Voltage : 220V, 230V, or 240V Capacity :12v/7Ah Frequency:50/60 Hz
The PCE PCD 12V 65Ah Deep Cycle Battery delivers dependable power for a wide range of applications. It provides stable energy over long discharge cycles. This battery supports regular use in marine, RV, solar, and backup power systems. It fits well where lasting performance matters. Moreover, the PCE PCD Deep Cycle Battery features a deep cycle design for long life and strong reliability. It tolerates repeated charging and discharging without damage. This increases uptime and reduces maintenance needs. Users enjoy continuous power without frequent replacements. In addition, the battery delivers 12 V and 65 Ah capacity for steady power delivery. This suits medium and high demand systems. Appliances, lights, and electronics receive reliable current. It helps systems stay stable in everyday use. Furthermore, the PCE PCD 12V 65Ah Deep Cycle Battery includes sturdy construction for long-lasting durability. The strong casing protects internal cells against wear and tear. This adds confidence in heavy use environments. Performance remains consistent over time. Also, the battery supports deep discharge recovery for extended service life. It recovers well even after heavy drain cycles. In addition, the PCE PCD Deep Cycle Battery is easy to install in many setups. It fits most battery holders and racks without fuss. Connections remain secure and simple. Furthermore, the PCE PCD Deep Cycle Battery supports stable performance in varying temperatures. It remains reliable in moderate heat and cold. This helps outdoor and mobile applications. Overall, the PCE PCD 12V 65Ah Deep Cycle Battery delivers strong power, lasting durability, and smooth performance. It fits home, marine, solar, and backup use. This battery is ideal for users who want dependable deep cycle energy every day. Specifications: Voltage : 12V Capacity : 65Ah
The Yuasa SWL2500T Industrial VRLA Battery delivers reliable power for industrial and backup applications. First, it provides consistent energy output for critical equipment and systems. In addition, the valve-regulated lead-acid (VRLA) technology ensures maintenance-free operation and extended service life. Moreover, the battery features durable construction, vibration resistance, and high discharge efficiency for demanding environments. The compact design allows easy installation in various setups. Finally, its dependable performance, safety features, and long-term reliability make it ideal for industrial, UPS, and emergency power systems. Specifications: VRLA Technology: Maintenance-free operation with long service life High Discharge Efficiency: Reliable power for critical equipment Durable Construction: Resistant to vibration and harsh environments Compact Design: Easy installation in various industrial setups Industrial Reliability: Ideal for UPS, backup, and emergency power
Prolink PRO3000SFCU 3000VA is a line-interactive UPS designed to provide stable backup power for PCs, servers, networking devices, and sensitive electronics. It ensures continuous operation during power cuts and voltage fluctuations. In addition, Prolink PRO3000SFCU 3000VA supports a wide input voltage range of 140–300VAC. Therefore, it stabilizes unstable electricity using automatic voltage regulation (AVR). Moreover, it delivers a fast transfer time of around 2ms for seamless switching between mains and battery mode. Furthermore, Prolink PRO3000SFCU 3000VA includes four 12V/10Ah batteries for extended backup support. As a result, it provides reliable runtime for critical systems depending on load. It also supports simulated sine wave output for compatible devices. In addition, Prolink PRO3000SFCU 3000VA features intelligent microprocessor control. Therefore, it improves efficiency, protection, and battery management. Moreover, it includes indicators and alarms for battery, overload, and fault conditions. Overall, Prolink PRO3000SFCU 3000VA delivers strong backup performance, stable voltage regulation, and reliable protection for home and office power needs. Specifications: 3000VA capacity for PCs and office equipment Line-interactive UPS with AVR voltage regulation Wide input range 140–300VAC for unstable power Fast ~2ms transfer time for uninterrupted switching Four 12V/10Ah batteries for extended backup support
APC Easy UPS SRV, 1600 Watts / 2 KVA, Online double conversion, Sine wave, 230V, Multi-function LCD status and control console, Surge Protection and Filtering, Generator compatible, Management Software, USB, 2 years warranty Electronics and Battery
Powerology Portable Power Generator,140400mAh Powerology 140400mAh Power Generator 500W Pure Sine-Wave Output -45W USB-C Power Delivery -18W USB-A Quick Charge -3.1A Dual USB Optimal Charge -220V UK AC Output -750W Max Surge
The Twist Line Interactive UPS 1500VA TWUP1500/LI provides backup power protection for computers, networking devices, and office equipment. It uses line interactive technology with automatic voltage regulation for stable output performance. Additionally, the built-in dual 12V/7Ah batteries support continued operation during power interruptions. Moreover, the UPS includes LED status indicators for clear power monitoring and system alerts. It also supports overload and short-circuit protection for safer daily operation. Therefore, it helps protect connected devices from voltage fluctuations and sudden outages. Furthermore, the compact tower design fits home and office environments easily. The system also supports cold start functionality and simulated sine wave output for common electronic devices. Additionally, the automatic battery charging system improves operational reliability. Specifications: 1500VA line interactive UPS technology Built-in 2x12V/7Ah rechargeable batteries LED indicators for power status monitoring Automatic voltage regulation for stable output Overload and short-circuit protection system
The Yuasa SW280 Industrial VRLA Battery delivers dependable backup power for industrial systems. It uses Valve Regulated Lead Acid (VRLA) technology for safety and maintenance-free use. Also, its sealed design prevents leaks and allows flexible installation. First, this battery is built to last in tough environments. Moreover, it resists vibrations and shocks in heavy machinery settings. Therefore, it works well in factories, security systems, and telecom units. Second, the Yuasa SW280 provides high capacity and consistent performance. It delivers stable output during power outages or load changes. In addition, it supports long discharge times when needed. Consequently, your critical system stays operational without interruption. Also, this battery is easy to install and service. It fits standard industrial racks and cabinets. Plus, it has clear terminal markings for safe connection. Thus, technicians can install it quickly and correctly. Moreover, the VRLA design means no water topping up is required. Therefore, you avoid extra maintenance and reduce downtime. Furthermore, the sealed casing minimizes acid exposure risk. Hence, it is safer for indoor installations. Another key feature is reliable thermal performance. It operates well in temperatures from 0°C to 40°C. Also, it handles variations in industrial climates. Thus, it maintains long service life and consistent power. Importantly, Yuasa provides strong quality assurance. Their factories follow strict ISO standards for production. Also, full warranty coverage gives peace of mind. Hence, you can trust the battery for critical workloads. In summary, the Yuasa SW280 Industrial VRLA Battery combines durability, safety, and dependable power. Furthermore, its maintenance-free and sealed design adds convenience and protection. If you need a trusted industrial battery, this is an excellent choice. Specifications: Length (mm) : 151 Width (mm) : 65 Height (mm) : 97.5 Weight (kg) : 2.6 Nominal Voltage : 12
UPS battery 12V 7A Battery for UPS 7A 12v
The SkyGate Mini DC UPS 20000mAh is a powerful and compact solution for uninterrupted power. Whether you need backup power for your router, modem, or other devices, this mini UPS has you covered. With a 20000mAh capacity, the SkyGate Mini DC UPS ensures your devices stay powered during outages or unexpected power cuts. This high-capacity battery provides extended usage time, keeping your essentials running smoothly. The SkyGate Mini DC UPS is designed for versatility, featuring multiple output options. It supports DC 9V/12V, USB 5V, and Type C, making it compatible with a wide range of devices, from routers to smartphones. Setting up the SkyGate Mini DC UPS is simple and hassle-free. Its plug-and-play functionality allows you to connect your devices quickly, ensuring uninterrupted power with minimal effort. The SkyGate Mini DC UPS is equipped with intelligent safety features, including overcharge protection, over-discharge protection, and short-circuit protection. These features ensure safe and reliable operation, protecting your devices from damage. Compact and portable, the SkyGate Mini DC UPS is easy to carry and store. Its lightweight design makes it perfect for use at home, in the office, or even on the go. In conclusion, the SkyGate Mini DC UPS 20000mAh offers reliable backup power with a high-capacity battery and versatile output options. Keep your devices running smoothly during power outages with this efficient and portable mini UPS. Specifications: Battery : 20000mAh Output Power : 18W POE Port : 24V/0.7A DC Port : 9V/2A, 12V/1.5A Output Ports : 5V/2A USB, 5V/1A Type-C
The ProLink PRO851SFCU Super Fast Charging UPS is designed to provide reliable backup power and voltage protection for computers, networking equipment, and home electronics. It helps keep essential devices operating during short power interruptions and unstable electrical conditions. The UPS provides an 850VA capacity and features line interactive technology with Automatic Voltage Regulation (AVR). Additionally, AVR helps stabilize voltage fluctuations and protects connected devices from overvoltage and undervoltage conditions. The ProLink PRO851SFCU features super-fast charging technology that significantly reduces battery recharge time after power outages. Moreover, this feature helps ensure the UPS is ready for future interruptions more quickly. The UPS includes multiple protection functions against overload, short circuit, surge, and battery discharge conditions. Furthermore, these protection features help improve the safety and reliability of connected equipment. The PRO851SFCU includes LED status indicators that allow users to monitor operating conditions easily. Therefore, users can quickly check power status, battery mode, and system operation. The compact design makes the UPS suitable for homes, offices, and small workspaces. In addition, it provides dependable backup support for desktop computers, routers, CCTV systems, and other important electronic devices. The ProLink PRO851SFCU Super Fast Charging UPS combines backup power, fast battery charging, AVR technology, and safety features. As a result, it provides a practical and reliable power protection solution for everyday use. Specifications: Capacity : 850VA Input : 230VAC Output : 230VAC Input Voltage : 510W Transfer Time : 2ms Battery Type : 12V/10Ah x1 Backup Time : 10-30 Min Part Number : PRO851SCFU
PCE EX Online 2 KVA 1800W is a double-conversion online UPS designed to deliver continuous and stable power protection for computers, servers, and sensitive electronic equipment. It ensures uninterrupted operation during outages and unstable voltage conditions. In addition, PCE EX Online 2 KVA 1800W uses true online double-conversion technology. Therefore, it provides zero transfer time between mains and battery mode. Moreover, it delivers a pure sine wave output for safe and stable power to connected devices. Furthermore, PCE EX Online 2 KVA 1800W supports a 2kVA / 1800W load capacity. As a result, it can handle multiple devices such as PCs, routers, and small servers. It also maintains stable voltage regulation for sensitive workloads. In addition, PCE EX Online 2 KVA 1800W includes advanced protection features. Therefore, it helps protect against overload, short circuits, and power fluctuations. Moreover, it is designed for consistent performance in professional and office environments. Overall, PCE EX Online 2 KVA 1800W delivers reliable, uninterrupted, and high-quality backup power for critical systems. Specifications: 2kVA / 1800W power capacity for multiple devices Online double-conversion UPS technology Zero transfer time for uninterrupted power Pure sine wave output for safe device operation Protection against overload and voltage fluctuations