Description
The Chinfa WRA480-24 is a high-power three-phase DIN rail power supply designed for industrial automation, machinery and control-panel applications. It delivers a regulated 24VDC output at up to 20A, providing 480W of continuous output power.
A wide three-phase input range of 340 to 575VAC allows the WRA480-24 to operate from common industrial 400V and 480V supplies. Its adjustable output, high efficiency and integrated parallel function make it suitable for demanding systems requiring a stable, high-current 24VDC supply.
The robust metal enclosure mounts directly onto a standard 35mm DIN rail and includes protection against short circuit, overload, overvoltage and overtemperature conditions.
Chinfa WRA480-24 24V 20A Three-Phase DIN Rail Power Supply
A robust 480W industrial power supply with a wide three-phase input, adjustable 24VDC output and parallel-operation capability.
The WRA480-24 converts a three-phase industrial AC supply into a stable 24VDC output for machinery, process equipment and control systems. Its 20A output capacity makes it suitable for powering multiple control devices or larger DC loads from a single DIN rail supply.
Typical Applications
The Chinfa WRA480-24 is suitable for applications including:
- Industrial automation and machinery
- PLC, HMI and remote I/O systems
- Motors, actuators, solenoids and contactors
- Process-control and factory-automation equipment
- Packaging and material-handling systems
- Industrial communications and monitoring equipment
- High-current 24VDC control panels
Three-Phase Industrial Input
The power supply accepts a three-phase input from 340 to 575VAC, allowing operation from common industrial mains systems without a neutral connection.
480W High-Current Output
The WRA480-24 supplies 24VDC at up to 20A, delivering 480W of continuous output power for demanding industrial loads.
Adjustable Output Voltage
The output voltage can be adjusted from approximately 22.5 to 28.5VDC, allowing compensation for cable voltage drop or matching to the requirements of connected 24V equipment.
Parallel Operation
An integrated parallel-function selector allows compatible WRA480 power supplies to be connected in parallel where additional output capacity or system redundancy is required.
Integrated Protection
Short-circuit, overload, overvoltage and overtemperature protection help safeguard the power supply and connected equipment during abnormal operating conditions.
Robust DIN Rail Construction
The metal enclosure is designed for industrial control cabinets and mounts onto a standard 35mm DIN rail. Natural convection cooling eliminates the need for a fan.
Key Features
The principal electrical, protection and installation characteristics of the Chinfa WRA480-24.
- Product type: Three-phase industrial DIN rail AC-DC power supply
- Input: Three-phase 340 to 575VAC
- Nominal output voltage: 24VDC
- Output adjustment: Approximately 22.5 to 28.5VDC
- Maximum output current: 20A
- Rated output power: 480W
- Minimum efficiency: 88%
- Typical efficiency: 90%
- Protection: Short circuit, overload, overvoltage and overtemperature
- Cooling: Natural convection
- Degree of protection: IP20
- Operating temperature: Up to +71°C with derating above +61°C
- Mounting: 35mm DIN rail
- Dimensions: 124 x 150 x 118.8mm
- Weight: Approximately 1.72kg
- Warranty: 3 years
Technical Specification
Electrical, protection, environmental and mechanical information for product selection and system design.
| Specification | Details |
|---|---|
| Manufacturer | Chinfa Electronics |
| Model Number | WRA480-24 |
| Product Type | Three-phase industrial DIN rail AC-DC power supply |
| Number of Outputs | 1 |
| Input Phases | Three phase |
| AC Input Voltage | 340 to 575VAC, three phase |
| Nominal Output Voltage | 24VDC |
| Output Voltage Adjustment | Approximately 22.5 to 28.5VDC |
| Rated Output Current | 20A |
| Rated Output Power | 480W |
| Typical Efficiency | 90% |
| Parallel Operation | Supported via integrated selector switch |
| Operating Temperature | -40 to +71°C; output derating above +61°C |
| Storage Temperature | -40 to +85°C |
| Relative Humidity | Up to 95% RH at 25°C, non-condensing |
| Cooling Method | Natural convection |
| Degree of Protection | IP20 |
| Connections | Screw terminals |
| Enclosure Material | Metal |
| Dimensions | 124 x 150 x 118.8mm |
| Weight | Approximately 1.72kg |
| Mounting | 35mm DIN rail |
| Warranty | 3 years |
Available Model
This product page covers only the 24V version of the Chinfa WRA480 series.
| Model Number | Input Voltage | Output Voltage | Output Current | Power Rating |
|---|---|---|---|---|
| WRA480-24 | 3-phase 340–575VAC | 24VDC | 20A | 480W |
Technical Support from Relec Electronics
As part of the Relec Electronics group, Dinrail Power benefits from over 45 years of experience supplying industrial electronic components and power solutions. Our engineering team can provide technical guidance, product selection support and assistance with three-phase DIN rail power supplies and complex industrial power requirements. For alternative solutions, customised options or specialist technical advice, visit the Relec Electronics website.




