Frequency Converters
Staco Energy
Staco E3 FC
Staco E3 FC is a three-phase, online double-conversion frequency converter for export testing and internationally rated equipment. It spans 3.5 to 40 kVA with 208/120 or 480/277 VAC configurations and selectable 50 or 60 Hz output. Unity output power factor, transformer options, and optional battery support allow the converter to fit different load, voltage, and short-duration ride-through requirements in three-phase installations.
Product details
Key features
- Soft-start rectifier provides progressive input current walk-in
- Touchscreen display provides settings and measurement access
- SNMP, Modbus, BACnet, and relay communication options
- Generator compatibility supports sites with limited source capacity
Key specs
- Topology
- Online double conversion with unity output power factor
- Capacity
- 3.5–40 kVA, three phase
- Voltage
- 208/120 or 480/277 VAC; delta options with transformers
- Frequency
- Selectable 50 or 60 Hz
- Input range
- +20% / −17% at full load
- Input power factor
- 0.99 at full load
- Output regulation
- ±2%
- Efficiency
- Above 92%
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