Mercury MDC3320S Online UPS

The Mercury MDC3320S represents an industrial-grade three-phase UPS solution engineered for large-scale enterprise applications. This high-capacity online UPS system delivers superior power protection for data centers, industrial equipment, and critical infrastructure installations.

Three-Phase Power Excellence

The MDC3320S employs true online double-conversion technology with three-phase input and output. This sophisticated system maintains perfect power quality by converting incoming AC power to DC, then back to clean AC power, eliminating all power disturbances. Furthermore, the unity power factor (1.0) design delivers the full 20KVA/20KW rating without derating.

Intelligent Control System

A powerful DSP-based control system manages all critical operations, ensuring precise voltage regulation and frequency stability. Additionally, the advanced parallel capability supports up to 4 units for expanded capacity or N+1 redundancy configurations. The system continuously optimizes performance through real-time monitoring and adjustment of operating parameters.

Comprehensive Monitoring Interface

The 7-inch color touchscreen display provides detailed system status, power flow analysis, and historical data logging. Moreover, multiple communication interfaces enable seamless integration with building management systems and remote monitoring solutions. The integrated SNMP capability allows network-based management and automated notifications.

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Technical Specifications

• Rated Capacity: 20KVA/20KW
• Input Voltage Range: 304-478VAC (Three-Phase)
• Output Voltage: 380/400/415VAC ±1%
• Input Frequency Range: 40-70Hz
• System Efficiency: >95% (Online Mode)
• Input Power Factor: ≥0.99
• Output Power Factor: 1.0

Advanced Features

• Intelligent battery management system
• Multiple operating modes (Online/ECO/CVCF/Manual Bypass)
• Advanced parallel operation capability
• Hot-swappable power modules
• Smart self-diagnostics
• Load-based fan speed control

Communication Interfaces

• RS485/RS232 ports
• Intelligent SNMP card slot
• Modbus TCP/IP support
• Multiple dry contact interfaces
• Emergency Power Off (EPO)
• Parallel communication ports

Protection Systems

• Input/Output phase sequence protection
• Overload and short circuit protection
• Battery deep discharge prevention
• Thermal protection mechanisms
• Surge and spike protection
• EMI/RFI filtering
• Input/Output isolation

This industrial-grade UPS solution delivers enterprise-level power protection while maintaining high efficiency and operational flexibility. Its comprehensive feature set and robust performance make it ideal for protecting mission-critical infrastructure in demanding environments.