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Vertiv / DC Power Systems (-48V)

ER22010-T Equipment information & support

The Vertiv ER22010-T is a 220Vdc/10A high-voltage DC switch-mode rectifier module engineered for utility substations, power plants, and HVDC distribution systems. Utilizing advanced resonant soft-switching technology, it delivers >94% peak efficiency, hot-swappable reliability, and comprehensive electrical protection.

Equipment information

Brand
Vertiv
Equipment model
ER22010-T
Equipment type
DC Power Systems (-48V)
Controller / software version
Confirm against the installed equipment
View full product specifications
Vertiv ER22010-T High-Voltage DC Rectifier Module (220Vdc/10A Forced Air-Cooled Telecom & Utility Power) - Isometric 45-Degree Angled View

Information below comes from the current product catalogue. Confirm the controller, software version and configuration of the installed equipment separately.

Rated DC Output Current
10A Continuous Regulated Current
Supervisory Interface
CAN Bus High-Speed Isolated Interface
Nominal Conversion Efficiency
≥ 94.0%
Rated DC Output Voltage
220VDC (176V ~ 286V)
AC Input Phase Voltage Range
323Vac - 475Vac (Three-Phase Three-Wire) VAC
Overall System Efficiency
Up to 96.2% (Gold Standard)

Alarms & troubleshooting

AC_IN_FAIL / Utility Grid Failure
Input Amber LED flashing, Master Alarm Red solid
Utility power outage, AC voltage outside tolerance (<85Vac or >300Vac), or tripped circuit breaker
1. Measure incoming AC line voltage to verify it has normalized; 2. Confirm that the input breaker on the distribution panel is closed; 3. Once AC grid recovers, the module soft-starts automatically to resume DC output.
DC_OV_LOCKOUT / DC Overvoltage Shutdown
Fault Red LED solid, module completely shut down
Internal voltage feedback loop failure, lightning surge ingress, or severe current-sharing imbalance
1. Probe DC bus voltage with a digital multimeter to rule out external spikes; 2. Open the input breaker, extract the module, wait 30s for capacitor discharge, and reinsert; 3. If overvoltage persists upon power-up, replace the internal control board.
FAN_FAIL_OTP / Fan Failure & Over-Temperature
Temp Amber LED solid, output power derated proportionally
HVAC failure in server room, clogged air intake filters, or seized ball-bearing cooling fan
1. Clean dust accumulation from front-panel intake grilles to ensure unrestricted airflow; 2. Confirm equipment room ambient temperature is maintained under 25°C; 3. Inspect fan rotor for mechanical obstruction; hot-swap replacement fan if seized.

Access Complete Maintenance & Full Alarm Troubleshooting Manual

This page lists high-frequency critical alarm codes commonly encountered in field maintenance. Comprehensive manufacturer troubleshooting matrices, board-level repair guides, detailed electrical schematics, and firmware commissioning manuals are delivered alongside equipment upon formal project procurement, accompanied by dedicated FAE technical support.

Contact Account Manager for Full Manual

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