Emergency Lighting / Life Safety
Staco Energy
Staco E3 924
Staco E3 924 is a three-phase, online double-conversion central lighting inverter for emergency lighting loads. It covers 3.5 to 40 kW with unity output power factor and 208/120 or 480/277 VAC configurations. When utility power fails, the inverter supports connected lighting from its battery system for the specified backup time, then recharges the batteries after normal power returns for UL 924 applications.
Product details
Key features
- Soft-start rectifier provides progressive input current walk-in
- Front-panel LCD presents system status and alarms
- Dry-contact outputs support building alarm integration
- SNMP, Modbus, BACnet, and relay communication options
Key specs
- Topology
- Online double conversion with unity output power factor
- Capacity
- 3.5–40 kW, three phase
- Voltage
- 208/120 or 480/277 VAC; delta options with transformers
- Input power factor
- 0.99 at full load
- Input current distortion
- Below 1% at full load
- Output regulation
- ±1%
- Operating temperature
- 0–40 °C
- Standards
- UL 924, UL 924 OUST, UL 1778, cUL, FCC Class B
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