Myers Emergency & Power Systems Rebrands as Myers Critical Power Solutions
Myers Emergency & Power Systems Rebrands as Myers Critical Power Solutions
Three-Phase Inverter
Delivering up to 98% efficiency and available in sizes from 4.8 to 50 kVA, the CIII Series three-phase central inverter family provides reliable, code-compliant emergency backup power for large facilities, campuses, and mission-critical lighting applications. Featuring advanced PWM/IGBT technology, ultra-fast 2 ms transfer time, integrated maintenance bypass, and comprehensive monitoring and communications capabilities, the CIII combines dependable performance, flexible integration, and simplified system management in a space-saving design.
Power Capacity: 4.8kVA | 6.0kVA | 8.0kVA | 10.0kVA | 12.5kVA | 16.7kVA | 24.0kVA | 33.0kVA | 40.0kVA | 50.0kVA
Efficiency: 98% Efficient Typical
Runtime: 90 Minute Standard | Configurable (Contact Factory)
Transfer Time: No Break 2ms Transfer Time
Standard Diagnostics: Automatic Event, Test, and Alarm Log
Optional Diagnostics: Status Monitoring | Summary Form C Contacts | Summary Alarm | Output Trip Alarms | Remote Panels
Communications: Standard: RS-232 Port | Optional: BACnet, BACnet IP, Modbus TCP/IP, Modbus RTU, IoT Inverter Connect
Standard Features: PWM/IGBT Technology and Micro-Controller | Internal Maintenance Bypass | User Programmable with Password Protection | Input Circuit Breaker (65 KAIC Rating) | NEMA Type 1 Cabinet | Space-Saving Design | Low Audible Noise (45 dBA @1m) | Forced Air Cooling Only During Emergency Operation (No Filters Required)
Optional Features: External Maintenance Bypass | Output Circuit Breakers | Fast Charge | Seismic Mounting
Input Voltage: 120/208 or 277/480 VAC | 3-Phase 4-Wire Plus Ground | Custom Available (Contact Factory)
Output Voltage: 120/208 or 277/480 VAC | 3-Phase 4-Wire Plus Ground | Custom Available (Contact Factory)
Output Load Power Factor: 0.5 Lag to 0.5 Lead
Output Voltage Distortion: Less Than 3% THD for Linear Loads
Compatibility: Lighting Loads | Motor Loads
Inverter Operating Temp: 32°F to 104°F (0°C to 40°C)
Battery Operating Temp: 68°F to 86°F (20°C to 30°C)
Optional Service & Support: Factory Startup & Training | Extended Maintenance Plan | Extended Warranty
Cabinet Size (HxWxD"): 4.8-16.7kVA: Electronics 47x30x25; Batteries 47x30x25 | 24.0-50.0kVA: Electronics 72x44x31; Batteries 72x48x31
CIII Series Cut Sheet
CIII Series Large Install Manual
CIII Series Small Install Manual
CIII Series Large User Manual
CIII Series Small User Manual
CIII Series AIA Spec
CIII Series BACnet User Manual
RS-232 Protocol User Manual
IoT Inverter Connect Sales Sheet
IoT Inverter Connect Quick-Start Manual
System Electrolyte, kWh Levels, Gassing
