Emerson ER22020/T DC panel high-frequency charging rectifier module

I. Basic Positioning
Brand: Original Emerson Network Power, now Vertiv Utilitysure Series
Model: ER22020/T
Order Code: 02130734
Usage: Core charging module of 220V high-frequency switching DC panel for power stations, power plants, and hydropower plants, for floating charge / equalization of battery banks, and also for providing control, protection, and circuit breaker operation DC loads.

Core Electrical Parameters
AC Input
Standard: Three-phase three-wire 380VAC 50/60Hz
Voltage Range: 323～475VAC, automatic half-load power limit in case of phase loss
Input Current: ≤10A, Active PFC, Power Factor ≥0.99, Harmonic THDi ≤5%
DC Output (220V System)
Nominal Output: DC220V / Rated 20A, Peak 22A
Output Power: 5720W
Voltage Adjustable Range: 176～320VDC
Default float charge 234V; Equalization, voltage regulation can be set on the panel
Stabilization / Stabilization Accuracy: ≤±0.5%
Ripple Coefficient: ≤0.1% RMS
Current Sharing Performance: Unbalanced degree of multi-module parallel connection ≤±5% (50%~100% load)
Overall Efficiency: ≥93%, Soft-switching resonant topology, Low Heat Generation

Hardware Structure and Heat Dissipation
Intelligent Air Cooling: Temperature-controlled stepless speed fan, low noise at low temperature, full-speed cooling at high temperature, environmental noise <55dB
Hot Swap Design: Supports online replacement and maintenance without cabinet power outage
Human-Machine Interface: Front panel LCD digital screen + Up/Down adjustment buttons, operation / fault indicator lights, local viewing of voltage/current, parameter modification, reading of fault codes
Communication Interface: Built-in CAN bus, networked with EMU series monitoring module; can be connected to old PSM monitoring system through EDU protocol converter
Size: 388×88×242mm, standard DC panel frame installation

Complete Protection Functions
Input: Overvoltage, undervoltage, phase loss, overcurrent protection
Output: Overvoltage, undervoltage, short circuit current-limiting self-recovery, overcurrent current-limiting
Battery Reverse Connection Protection: Battery polarity reversed, module automatically locks without damage
Overheating Protection: Reduce power when overheating, stop operation in severe overheat
Output Soft Start: 3~8s slow voltage increase, avoiding impact on batteries