MAG-H500-220S48 | 500W 220VAC to 48VDC Isolated Waterproof AC-DC Power Supply Solution for Substations and Power Plants
In power systems, a large number of critical devices inside substations and power plants — such as high-voltage circuit breakers, relay protection devices, automation instruments, and control systems — rely on stable and reliable DC power. Because field environments often involve voltage fluctuations, strong electromagnetic interference, large temperature variations, and long-term continuous operation, ordinary power modules are usually unable to meet long-term stability requirements.
The MAG-H500-220S48, developed by Mingzinc Technology, is a 500W industrial-grade isolated waterproof AC-DC power module designed specifically for the power industry. It converts 176-264VAC input into a stable 48VDC output, providing safe, stable, and low-ripple DC power for power automation equipment and serving as a key component for ensuring grid stability.
1. Key Product Specifications
Model: MAG-H500-220S48
Type: AC-DC Power Module / Industrial Power Supply
Rated Power: 500W
Input Voltage: 176-264VAC
Output Voltage: 48VDC
Output Current: 10.4A
Output Type: Single Output
Protection Rating: IP65
Dimensions: 200 × 158 × 72 mm
Wiring Method: Aviation connector output
Optional Configurations:
Power range: 400-600W available
Custom single-output options supported
2. Structural Advantages Designed for Power-System Environments
The MAG-H500-220S48 adopts a fully sealed aluminum alloy housing with cooling fins, providing:
High-strength mechanical protection
Efficient thermal conduction and heat dissipation
Dust-proof and moisture-resistant sealing
The module supports natural air cooling, and additional heat sinks can be installed depending on cabinet space. It is suitable for:
Substation control cabinets
Power-plant automation equipment cabinets
Outdoor electrical control boxes
3. Power-Industry Application Scenarios
This power module mainly functions as a core AC-to-DC control power supply in power systems.
1️⃣ Substation Power Supply
Provides stable 48V DC power for:
High-voltage circuit breaker control systems
Relay protection devices
Automation monitoring systems
Data acquisition terminals
2️⃣ Power-Plant Control Systems
Supplies stable DC power for:
Automation instrumentation systems
Control signal equipment
Monitoring and communication devices
Protection and alarm systems
3️⃣ Grid Automation & Remote Monitoring Equipment
Applicable to:
Grid dispatching equipment
Intelligent control terminals
Remote communication modules
4. Core Technical Highlights
✅ Wide Input Voltage Range
Supports 176-264VAC input, allowing reliable operation under:
Grid voltage fluctuations
Cable voltage drops
Startup voltage variations
Ensuring continuous and stable output.
✅ Inrush Current Suppression Circuit
An integrated inrush-current suppression design effectively reduces:
Power-on surge impact
Grid surge interference
Improving overall system safety.
✅ Wide-Band Noise Filtering
Built-in input filtering removes high-frequency grid interference and electrical noise, producing a more stable output voltage. Especially suitable for:
Precision relay protection systems
Control signal systems
✅ High Isolation Between Input and Output
The electrical isolation design provides high isolation voltage between input and output, helping to:
Suppress surges and voltage spikes
Block electromagnetic interference
Prevent fault voltage transmission
Significantly improving downstream equipment safety.
✅ Low Ripple and Low Noise Output
Low output ripple ensures:
Stable automation instrument measurements
Reliable control signals
Proper communication system operation
5. Complete Industrial-Grade Protection Functions
The MAG-H500-220S48 includes multiple built-in protection mechanisms:
Input undervoltage protection
Input overvoltage protection
Over-temperature protection
Output overcurrent protection
Output short-circuit protection
These protections automatically safeguard both the power module and connected equipment during abnormal conditions.
6. Importance of IP65 Protection
Power-system equipment is often deployed in:
Dust-heavy environments
Humid equipment rooms
Outdoor control cabinets
High-temperature enclosed enclosures
The MAG-H500-220S48 uses a fully sealed structure with IP65 protection, effectively preventing:
Moisture ingress
Dust contamination
Corrosive environmental damage
Greatly extending power-supply service life.
7. Compliance With International Safety Standards
The product complies with:
UL1950 safety standard
IEC950 safety regulations
Helping system manufacturers pass industry certification requirements more easily.
8. Mingzinc Technology Power Customization Capability
As a professional power-supply manufacturer, Guangdong Mingzinc Technology Co., Ltd. provides:
Custom input voltage ranges
Custom output voltage and current
Custom housing dimensions and structures
Multi-output design options
Enhanced EMI design
Full OEM / ODM services
Technical support is available from sample verification through mass production.
9. Get Product Documentation & Selection Support
If you are looking for a 500W 48V industrial waterproof AC-DC power module for:
Substation control systems
Power-plant automation equipment
Grid monitoring systems
Please contact Mingxin engineers to obtain:
Full datasheet
Mechanical installation drawings
Application wiring diagrams
Customization recommendations
We will provide a professional power-supply solution tailored to your real application scenario.
