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✦ Online UPS

BR911 Series 1-3kVA

True Online Double Conversion Tower UPS for critical power protection.

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BR911 Series 1-3kVA Online Tower UPS
1-3kVA Power Rating
96% Efficiency
0ms Transfer Time
Home UPS Systems BR911 Series

BR911 Series 1-3kVA

Single Phase Tower UPS | True Online Double Conversion

The BR911 Series is a high-performance true online double-conversion UPS system designed to deliver uninterrupted and reliable power for critical applications. Built with advanced DSP technology and a robust IGBT-based architecture, it ensures consistent output quality, maximum efficiency, and superior load handling.

With a unity output power factor (PF = 1), the BR911 series provides full-rated power capacity, making it ideal for IT equipment, offices, and sensitive electronic systems. Its wide input voltage range and near-unity input power factor enhance energy efficiency while reducing dependency on unstable power conditions.

Engineered for flexibility, the UPS supports both lead-acid and lithium-ion batteries, along with adjustable charging current up to 12A, ensuring faster recharge and longer backup reliability.

True Online Double Conversion
Unity Power Factor (PF = 1)
Up to 96% Efficiency (98% ECO)
Wide Input Voltage (110–288 VAC)
Zero Transfer Time (0ms)
Li-Ion Battery Compatible

Reliable Single-Phase Power Protection for Critical Applications

The BR911 Series 1–3kVA Online UPS is a compact, high-performance true online double conversion UPS engineered to provide uninterrupted and premium-quality power for sensitive electronic equipment. Designed with advanced DSP digital control and unity output power factor, it delivers clean sine wave output while protecting connected devices against voltage fluctuations, surges, harmonics, frequency variations, and unexpected power failures.

Available in both internal battery (KB) and long backup external battery (KL) models, the BR911 Series offers installation flexibility for a wide range of applications. Its intelligent battery charging, ECO mode operation, and high operating efficiency help reduce energy consumption while maximizing battery life and system reliability.

Ideal for small offices, IT infrastructure, networking equipment, security systems, healthcare devices, banking, educational institutions, retail outlets, and industrial control systems, the BR911 Series ensures continuous operation, dependable protection, and simplified monitoring through its LCD display and multiple communication interfaces.

Key Features

  • True Online Double Conversion Technology – Provides continuous, clean, and regulated power with zero transfer time.
  • Unity Output Power Factor (PF = 1.0) – Delivers full usable power for connected equipment.
  • DSP Digital Control – Ensures accurate voltage regulation, faster response, and high operational reliability.
  • Wide Input Voltage Range – Maintains stable operation even during severe voltage fluctuations.
  • High Input Power Factor (≥0.99) – Reduces utility losses and improves overall energy efficiency.
  • Pure Sine Wave Output – Safely powers sensitive electronics and critical equipment.
  • High Operating Efficiency – Up to 96% efficiency in Online Mode and up to 98% in ECO Mode.
  • Internal & External Battery Options – Choose compact internal battery models or long backup external battery configurations.
  • Intelligent Battery Charging – Optimizes charging performance and extends battery service life.
  • Comprehensive Protection – Protects against overload, short circuit, battery faults, voltage abnormalities, and power disturbances.
  • LCD Monitoring Display – Displays UPS status, load level, battery status, input/output voltage, and alarm notifications.
  • Advanced Communication – Standard RS232 & EPO with optional SNMP, USB, RS485, and AS400 for remote monitoring.

Technical Specifications

Power Capacity 1–3kVA / 1–3kW
UPS Technology True Online Double Conversion
Input / Output Single Phase Input / Single Phase Output
Output Power Factor Unity (PF = 1.0)
Input Power Factor ≥0.99
Input Voltage Range 110–300VAC (Model Dependent with Power Derating)
Output Voltage 220 / 230 / 240VAC
Output Frequency 50 / 60Hz Auto Adaptation
Output THD ≤2% (Linear Load), ≤5% (Non-Linear Load)
Transfer Time 0ms (Mains to Battery), 4ms (Inverter to Bypass)
Efficiency Up to 96% Online, Up to 98% ECO Mode
Battery Options Internal Battery (KB) & External Battery (KL) Models
Communication RS232 & EPO Standard; Optional SNMP, USB, RS485 & AS400
Display LCD with UPS Status, Battery, Load & Alarm Information
Protection Overload, Short Circuit, Battery Protection, Voltage Regulation & Fault Monitoring

Comprehensive Support & Services

RAPSTECH provides complete lifecycle support to ensure your BR911 Series UPS delivers reliable performance throughout its operational life.

  • ✔ Professional installation and commissioning.
  • ✔ Preventive Maintenance (AMC) programs.
  • ✔ On-site diagnostics and technical support.
  • ✔ Genuine replacement batteries and spare parts.
  • ✔ Remote monitoring and troubleshooting assistance.
  • ✔ Product documentation, firmware guidance, and user manuals.
  • ✔ Nationwide support from RAPSTECH certified service engineers.

⚡ Key Specifications

Core technical features at a glance

1-3 kVA Power Rating 1kVA/1kW to 3kVA/3kW
📈 96% High Efficiency Up to 98% in ECO mode
⏱️ 0 ms Zero Transfer Time Seamless switching between modes
💪 1.0 PF Unity Power Factor Maximizes usable power capacity
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