Common UPS Terminology Explained

Understanding UPS jargon makes selecting the right system easier. Here are some common terms:

• Runtime: The duration a UPS can provide backup power before the battery is depleted.
• Surge Protection: Shields connected equipment from sudden voltage spikes.
• Power Factor (PF): The ratio of real power (watts) to apparent power (VA), indicating efficiency.
• Bypass Mode: Allows power to flow directly to equipment if the UPS fails or is overloaded.
• VA (Volt-Amps): The apparent power rating of a UPS, which helps determine capacity.
• Watts (W): The real power consumed by connected devices, used to size a UPS correctly.
• Automatic Voltage Regulation (AVR): Stabilises voltage fluctuations without switching to battery.
• Double Conversion: A feature of online UPS systems that provides continuous clean power.
• Line-Interactive UPS: A UPS type that regulates voltage fluctuations with AVR before switching to battery.
• Hot-Swappable Batteries: Batteries that can be replaced while the UPS remains operational.
• UPS Efficiency: The percentage of input power effectively delivered to connected devices.
• SNMP (Simple Network Management Protocol): Enables remote UPS monitoring and management.