Emerson HD22005-3A Power Supply Rectifier Module

Overview

The HD22005-3A is a high-frequency DC power rectifier module developed by Emerson. Engineers designed it for use in substations, telecom power systems, and automation environments. It combines microprocessor control with advanced power electronics to deliver efficient, reliable, and stable DC power. The system intelligently switches between natural and forced air cooling based on the load.

Technical Specifications

• Model Number: HD22005-3A

• Manufacturer: Emerson

• Function: DC Power Supply / Rectifier Module

Input Specifications

• Input Voltage: 323–475 V AC (three-phase, three-wire)

• Input Frequency: 45–65 Hz

• Power Factor: ≥ 0.94

Output Specifications

• Output Voltage: 220 V DC (adjustable 176–320 V DC)

• Rated Output Current: 5 A

• Maximum Output Current: 5.5 A

• Efficiency: ≥ 90%

• Ripple Coefficient: ≤ 0.1%

Control and Accuracy

• Voltage Regulation Accuracy: ±0.5%

• Current Regulation Accuracy: ±1%

• Soft Start Time: 3–10 seconds

Protection Features

• Overvoltage Protection: 293–325 V DC

• Undervoltage Protection: 191 ± 6 V DC

• Overtemperature Protection: Trips at 85°C; Recovers at 75°C

• Fan Control: Starts at 50–55°C; Stops at 38°C

Environmental & Safety

• Cooling Method: Natural cooling (<30% load); Air cooling (>30% load)

• Insulation Resistance: >10 MΩ @ 1000 V DC

• Dielectric Strength: 2000 V AC, 50 Hz for 1 minute

Physical Characteristics

• Dimensions (W × H × D): 11 cm × 41.5 cm × 26 cm

• Weight: 5.46 kg