NCTS QSTROM L 2000VA 1200W Line-Interactive UPS, Simulated Sinewave, 2×12V 9Ah Batteries, AVR, 2–6ms Transfer, Off-Mode Charging & Generator Compatible

Expert Features 2000VA Line-Interactive Protection : Built for personal-computer setups, this UPS uses a line-interactive architecture to keep connected equipment running through short power interruptions and unstable mains conditions. Two-Boost + One-Buck AVR : Automatic Voltage Regulation stabilizes a wide incoming-voltage range without immediately consuming battery power, using two boost stages and one buck stage . 2–6ms Typical Transfer Time : Fast switchover helps keep PC equipment powered when mains electricity suddenly disappears. Dual 12V 9Ah Batteries : The internal battery system uses 2 × 12V/9Ah batteries for a combined 24V DC battery system . Microprocessor-Controlled Reliability : Built-in microprocessor control with internal self-diagnostic technology manages the UPS operation and protection functions. Off-Mode Charging + Intelligent Recharge : The UPS supports battery charging while switched off and includes a fast intelligent battery-recharge function. Generator Compatible : Designed to operate with compatible generator-fed environments, useful where grid interruptions are common. DC Start Function : The unit can be started without an active AC supply, according to NCTS’ product introduction. Expert Specs Specification Details Brand NCTS Series QSTROM L Model QSTROM L 2000VA Product Type Line-Interactive UPS Capacity 2000VA GTIN 6295151551844 Primary Application Personal Computer UPS Topology Line Interactive Control System Microprocessor control with internal self-diagnostic technology AVR Two boost + one buck Automatic Voltage Regulation DC Start Supported Off-Mode Charging Supported Battery Recharge Feature Fast intelligent battery recharge Generator Compatibility Supported Input Voltage 220VAC Additional Voltage Value Listed by Datasheet 220/230/240VAC — this value appears as an unlabeled row in the official technical table, so it should not be assigned to a specific parameter without further NCTS clarification. Input Voltage Range 81–145VAC / 162–290VAC Input Frequency Range 50/60Hz, auto sensing AC Voltage Regulation — Battery Mode ±10% Battery-Mode Frequency 50/60Hz ±1Hz Transfer Time Typical 2–6ms Battery-Mode Waveform Simulated sinewave Battery System Voltage 24V DC Battery Type / Quantity 12V / 9Ah × 2 Typical Recharge Time 6–8 hours to 90% after complete discharge AC-Mode Indicator Left green LED plus 1st–4th green LEDs progressively illuminate to indicate load level Battery-Mode Indicator Left green LED plus 1st–4th green LEDs progressively illuminate to indicate battery capacity Backup-Mode Alarm Sounds every 10 seconds Low-Battery Alarm Sounds every 1 second Overload Alarm Sounds every 0.5 second Fault Alarm Continuous sound Protection Discharge, overcharge, and overload protection Operating Temperature 0°C–40°C Noise Level Less than 40dB Dimensions 380 × 158 × 198 mm Manufacturer Note Specifications are subject to change without prior notice Engineering Note Listed values are typical reference values and are not intended as a basis for engineering design