Emerson ER11040/T5 Equipment information & support
Emerson (Vertiv) ER11040/T5 is an industrial-grade switch-mode rectifier and battery charger module engineered for electrical utility substations, stepping down 3-phase 380VAC to regulated 110VDC at 40A for switchgear tripping and relay protection.
Equipment information
- Brand
- Vertiv
- Equipment model
- Emerson ER11040/T5
- Equipment type
- DC Power Systems (-48V)
- Controller / software version
- Confirm against the installed equipment

Information below comes from the current product catalogue. Confirm the controller, software version and configuration of the installed equipment separately.
- 3-Phase AC Input Voltage Range
- 3-Phase 323VAC ~ 475VAC (Nominal 380VAC)
- Nominal DC Output Voltage
- 90VDC ~ 140VDC (Nominal 110VDC Regulated)
- Rated Constant Output Current
- 40A Rated Constant DC Output
- Rated Output Power
- 4400W Utility Rated Output Power
- Cooling Architecture
- Natural Convection / Silent Internal Airflow
- Power Conversion Efficiency
- ≥93.0% High-Frequency Utility Efficiency
Alarms & troubleshooting
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