The Simpson Electric G400-1-3-1-0 GIMA series three-phase panel meter delivers true RMS power and energy measurements in single-phase or three-phase unbalanced load configurations. This 96×96 mm DIN-mount instrument measures voltage, current, power (kW/kVA/kVAr), energy (kWh/kVAh/kVArh), power factor, frequency, and runtime hours with continuous high-speed accuracy regardless of harmonic content or waveform distortion. True RMS measurement capability extends to the 30th harmonic at 50 Hz (>25th at 60 Hz), with optional individual harmonics to the 15th and THD to the 30th.
Technical Specifications
• Mounting: 96×96 mm DIN panel, 71 mm (2.8 inches) depth behind panel, 3.62×3.62 inch cutout
• Display: 3-digit backlit LCD
• Input Current: 5 A, 1 A, or mV retrofit CT options with auto-CT rotation or factory-set import/export
• Voltage Input: 277/480 V three-phase or 115 VAC
• Auxiliary Power: 115 VAC
• Frequency Range: 45–65 Hz
• Measurement Range: 0.5%–120%
• System Configuration: 3-phase, 3- or 4-wire unbalanced load
– Key Features
• True RMS measurement of volts, amps, and power to the 30th harmonic (50 Hz) / >25th harmonic (60 Hz)
• Measures individual harmonics to the 15th with THD to the 30th (optional)
• Dual pulse outputs for kWh and kVArh/kVAh (selectable)
• Optional Modbus RS485 interface for energy management integration
• Optional IP Ethernet with web interface, FTP/HTTP/TFTP logging, SNMP compatibility, and 60-parameter data storage
• Three scalable digital pulse inputs for multiutility monitoring (gas, water, etc.)
• Two digital alarm outputs
– Typical Applications
Industrial and commercial three-phase power systems requiring harmonic-tolerant energy billing, load profiling, and power quality analysis. Suitable for demand-side management, utility interconnection, and building automation integration.
– Compatibility & Integration
Modbus TCP/IP and RS485 interfaces enable direct connection to energy management systems and building control platforms. Ethernet connectivity supports FTP, HTTP, TFTP, and SNMP protocols for remote monitoring and data logging.
