Uninterruptible Power Supplies

Uninterruptible Power Supplies

An uninterruptible power supply (UPS) is a device that provides stable power during network outages. It prevents sudden equipment shutdowns, protects against power surges, and allows for safe system shutdown.

Why you need uninterruptible power supplies: key advantages  

• Protection against data loss and equipment damage.
• Continuous equipment operation during emergency power outages.
• Stable voltage for sensitive electronics.
• Additional time to save information or switch to a generator.

Where UPS devices are used  

• At home: routers, computers.
• In security systems: CCTV cameras, DVR/NVR.
• In offices and enterprises: servers, network equipment, cash registers.
• In industry: automation, controllers, control systems.

Types of UPS  

• Off-line (Standby) – basic protection for undemanding equipment (router, video camera).
• Line-interactive – stabilize voltage. Suitable for PCs, workstations, small servers.
• On-line (Double Conversion) – provide maximum protection and stability. Used for servers, data centers, automation.

Technical specifications to consider  

• Power (W/VA): should be 20–30% higher than the total equipment consumption.
• Battery runtime: from a few minutes to several hours depending on the batteries.
• Output waveform: simulated sine wave or pure sine wave (pure sine wave is required for servers and automation).
• Number of outlets and connection type.
• Features: USB or network management, battery replacement, surge protection.

How to choose the right uninterruptible power supply?

Flash Army will help you make the right choice:  

• For a router or CCTV camera – an off-line model of 400–600 VA with 10–30 minutes of autonomy is sufficient.
• For a PC or small server – choose a line-interactive UPS from 800 to 1500 VA with voltage stabilization.
• For corporate servers and data centers – an on-line UPS from 3 kVA with a pure sine wave and the ability to connect additional batteries is required.
• For automation and industrial equipment – only on-line systems with a high level of protection and redundancy.