Mercury MDC3320S 20KVA/20KW 3/3 Phase Online UPS

The Mercury MDC3320S 20KVA/20KW 3/3 Phase Online UPS is an enterprise-grade power protection system designed for high-demand environments such as data centers, industrial facilities, and medical institutions. Built with true online double-conversion technology, it delivers continuous, clean, and stable power with zero transfer time. With a unity power factor of 1.0, this UPS provides a full 20kW of usable output, ensuring maximum efficiency and reliability for modern high-density loads while protecting critical systems from power disturbances.

Product Features

Unity Power Factor Performance

Delivers full 20kW real power from a 20kVA rating, maximizing efficiency and supporting high-load equipment without derating.

True Online Double Conversion

Continuously converts AC to DC and back to AC, ensuring complete isolation from power fluctuations and delivering consistent, high-quality output.

Three-Phase Power Configuration

Designed with 3-phase input and output, making it ideal for large-scale industrial applications and data center environments.

Zero Transfer Time

Provides seamless transition to battery power with no interruption, ensuring continuous operation of critical systems.

Advanced Battery Management

Features intelligent battery monitoring, automatic voltage regulation, and predictive discharge analysis to enhance performance and extend battery lifespan.

Intelligent Monitoring and Connectivity

Supports USB, RS232, and RS485 communication interfaces, with an optional SNMP card for remote monitoring and integration into network management systems.

Parallel Redundancy Support

Enables N+X parallel configuration for up to four units, allowing scalability, load sharing, and improved system reliability.

Comprehensive Protection

Includes safeguards against surges, lightning, overloads, short circuits, and over-temperature conditions, ensuring maximum equipment safety.

Product Specifications

• Power Rating: 20000VA / 20000W (Unity Power Factor)
• Phase: Three-phase input and output (3/3 phase)
• Input Voltage: 304–478VAC (supports 380V/400V/415V systems)
• Input Frequency: 40Hz – 70Hz auto-sensing
• Output Voltage: 380/400/415VAC ±1%
• Output Waveform: Pure Sine Wave
• Transfer Time: 0ms (Zero delay)
• Efficiency: >90% normal mode, >93% ECO mode (up to 94.5%)
• Battery Voltage: ±120VDC system
• Battery Configuration: Typically 2 banks of 20 x 12V/9Ah batteries
• Recharge Time: 6–8 hours to 90% capacity
• Connectivity: USB, RS232, RS485, optional SNMP card
• Noise Level: ≤55dB at 1 meter
• Operating Temperature: 0°C to 40°C
• Humidity: 0%–95% non-condensing
• Dimensions: Approximately 320 x 620 x 950 mm
• Weight: Approximately 60 kg to 250 kg depending on configuration
• Protection: Surge, lightning, overload, short circuit, and thermal protection
• Advanced Features: Automatic voltage regulation, intelligent battery management, parallel redundancy support