Description
Emerson HD22010-3 | 2.2kW Industrial DC Rectifier
Dynamic Product Introduction
The HD22010-3 is built for industrial DC power installations where the rectifier is expected to support a high-voltage DC bus and battery-charging function rather than a conventional low-voltage control cabinet. Its documented architecture uses three-phase AC input, high-frequency switching conversion, regulated DC output, current limiting, protection functions, and controlled cooling. The published technical documentation specifies 10 A nominal output current and 11 A maximum output current.
For engineers maintaining older Emerson DC systems, the model number needs to be read literally. HD22010-3 means the 220 VDC, 10 A configuration; HD22005-3A is a different 5 A rectifier. The family also includes 110 VDC and higher-current 220 VDC variants, so physical similarity is not sufficient for replacement approval. The documented Emerson ordering information identifies HD22010-3 as part number 02130517.
The supplied eBay listing identifies the item as Emerson HD22010-3, MPN HD22010-3, condition New, with the seller located in China. The listing also currently states that returns are accepted. These are marketplace details, not OEM technical specifications.

HD22010-3
Key Technical Specifications
- Model:
- Emerson Ordering Code: 02130517
- Product Type: High-frequency rectifier / DC charging module
- Nominal Output Voltage: 220 VDC
- Output Voltage Range: 176–286 VDC
- Rated Output Current: 10 A
- Maximum Output Current: 11 A
- Maximum Output Current Condition: 11 A at approximately 260 V output
- Constant-Current Range: 10–110% of rated current
- Output Voltage Regulation: ≤±0.5%
- Output Current Regulation: ≤±0.5% at 20% rated current or above
- Output Ripple: ≤0.1%
- Load-Sharing Imbalance: ≤±5% from 50–100% rated load
- Soft-Start Time: 3–8 seconds
- Input Voltage: 323–475 VAC
- Input Configuration: Three-phase, three-wire
- Input Frequency: 45–65 Hz
- Maximum Input Current: ≤10 A
- Efficiency: ≥92%
- Power Factor: ≥0.92
- Cooling: Natural cooling plus forced-air cooling
- Operating Temperature: -10°C to +40°C
- Storage Temperature: -25°C to +55°C
- Relative Humidity: ≤95%
- Acoustic Noise: <55 dB
- Dimensions: 413 × 110 × 257 mm
- Weight: <8 kg
- Insulation Resistance: >10 MΩ under the documented 500 VDC test condition
- Dielectric Strength: 2000 Vrms, 50/60 Hz, under the documented test arrangement
The technical guide also documents automatic recovery from output short-circuit protection, with foldback current at approximately 40% of rated current.
Global Sourcing & Live-Test SOP
1. Inbound verification
For this particular module, receiving inspection should begin with the nameplate rather than the seller title.
- Photograph the complete label.
- Confirm model and Emerson identification markings.
- Record serial number, revision information, and date codes.
- Where available, compare the physical module against Emerson ordering code 02130517.
- Inspect the rear connector, guide hardware, terminals, fan assembly, and ventilation path.
- Check for bent contacts, corrosion, cracked plastic, overheated terminals, or evidence of previous repair.
- For factory-sealed stock, document the condition of the original packaging before opening.
2. AC-side inspection
The is a three-phase high-voltage rectifier. Before energization:
- Confirm the test source is within the documented 323–475 VAC input range.
- Verify phase-to-phase voltage with a properly rated meter.
- Confirm protective-earth continuity.
- Check phase sequence and input wiring against the applicable system documentation.
- Use appropriately rated PPE and measurement equipment.
- Do not improvise a single-phase bench test for a module designed around a three-phase input.
3. DC-side verification
Before connecting the rectifier to a battery bank or live DC distribution bus:
- Verify output polarity.
- Confirm the load bank is rated for the expected DC voltage.
- Confirm the test instrumentation is rated for the voltage involved.
- Monitor output voltage from startup through regulation.
- Test current limiting using a controlled electronic load where practical.
- Confirm the unit does not exhibit abnormal ripple, oscillation, noise, or thermal behavior.
4. Heat-run test
For used, refurbished, or long-stored inventory, a controlled extended test is appropriate. Record:
- Three-phase input voltage
- Input current
- DC output voltage
- DC output current
- Fan operation
- Rectifier temperature
- Output ripple
- Alarm/protection behavior
A 24-hour heat run can expose degraded cooling fans, aging capacitors, intermittent control boards, and thermal drift that a simple power-up test will not reveal.
5. Final preparation
Record the serial number and measured operating values with the spare. Seal the unit in ESD-safe protective material and protect the rear connector and ventilation openings from impact and contamination.
Field Engineer’s Pitfall Guide
❗ Do not substitute HD22005-3A by physical appearance
The HD22005-3A is a 220 VDC / 5 A module, whereas is a 220 VDC / 10 A module. The documented Emerson ordering list separately identifies these models and their part numbers. A chassis that accepts the same mechanical format does not automatically make every HD-family rectifier electrically interchangeable.
❗ The 220 VDC output class requires a properly rated test setup
This is not a 24 VDC PLC supply. The documented output can reach the upper portion of the 220 VDC operating range, and manual adjustment can extend the output significantly within the documented limits. One Emerson technical guide specifically notes that the 220 V version can be adjusted as high as 286 VDC under manual adjustment conditions.
Use a properly rated DC load, meter, probes, wiring, and protective equipment. A casual bench test is not appropriate.
❗ Verify the exact revision before relying on older specifications
There are secondary sources showing different published upper output-voltage figures for —some list 286 V, while others list up to 320 V. The technical guide used for the core specifications here documents 176–286 V and describes a factory float setting of 234 V. For an actual installed system, use the documentation corresponding to the equipment revision rather than mixing specifications from later or derivative documentation.
Intent-Driven FAQ
What is the Emerson ?
The is a high-frequency switching rectifier used in industrial DC power systems. It converts three-phase AC into regulated DC and is intended for applications such as DC distribution and battery charging.
What is the output rating?
The nominal output is 220 VDC at 10 A. The documented maximum output current is 11 A, with the 11 A figure specified at approximately 260 V output.
What input voltage does require?
The documented input range is 323–475 VAC, three-phase, three-wire, at 45–65 Hz. Maximum input current is listed as 10 A.
Is the same as HD22005-3A?
No. They are different rectifier configurations. is 220 VDC / 10 A, while HD22005-3A is 220 VDC / 5 A. The Emerson documentation lists them separately.
Can be used with a 110 VDC system?
Not as a direct substitution. The same Emerson family includes 110 VDC models such as HD11020-3. A 220 VDC rectifier should not be installed into a 110 VDC system simply because the mechanical format appears similar.
Does the module have current limiting?
Yes. The documented constant-current range is 10–110% of rated current, and the rectifier has output short-circuit foldback protection with automatic recovery.
What should I verify when buying the eBay unit?
The supplied listing currently identifies the unit as new, with MPN , two units shown available, and a 30-day return policy. However, the listing’s “New” condition is a marketplace condition statement, not evidence of an electrical load test.
For procurement, request clear photographs of the actual nameplate and rear connector, plus confirmation of the exact model, serial/date information, original packaging condition, and whether the unit has been electrically tested under load.
Procurement note: Use the complete designation “Emerson , 220 VDC / 10 A high-frequency rectifier, Emerson P/N 02130517” in your PO or internal spare-parts database. That is considerably safer than entering only “Emerson 220 V rectifier.”


