150W Isolated DC-DC Converter for PLC Control Cabinet Auxiliary Power
150W Isolated DC-DC Converter for PLC Control Cabinet Auxiliary Power
The MDB150-24S12 is a high-reliability 150W isolated DC-DC converter designed to provide stable 12V auxiliary power for PLC control cabinets, industrial automation equipment and machine control systems.
With an 18-36VDC input range, the converter is compatible with industrial 24VDC power buses where voltage fluctuations may occur due to load switching, actuator operation and dynamic industrial processes.
The MDB150-24S12 provides a regulated 12VDC/12.5A output to supply:
PLC communication modules
HMIs
Industrial sensors
Data acquisition devices
Industrial cameras
Embedded controllers
In modern industrial control cabinets, multiple auxiliary devices often require different voltage levels. The MDB150-24S12 simplifies cabinet power architecture by converting the existing 24VDC bus into a stable isolated 12VDC supply.
The galvanic isolation design helps reduce electrical interference from servo drives, inverters, motors and other industrial loads, improving system stability and reducing communication failures, sensor errors and unexpected controller resets.
Key Features
150W isolated DC-DC converter
Wide 18–36VDC input range
Regulated 12VDC / 12.5A output
Input-to-output galvanic isolation
Designed for PLC and industrial automation systems
Industrial-grade protection functions
Undervoltage protection
Overvoltage protection
Overcurrent protection
Short-circuit protection
Overtemperature protection
OEM & ODM customization available
I. MODELS LIST
Single Channels Output
Model | Input Voltage (VDC) | Input Voltage Range (VDC) | Output voltage (VDC) | Output Current(A) | Output Power(W) | Ripple And Noise(mv) | Efficiency (Typ) |
MDB150-24S12 | 24VDC | 18-36VDC | 12VDC | 12.5A | 150W | 120 | 85% |
Only the typical models are listed. If you need another models, please inform the power,Input and output voltage,then feel free to call us.
II. FEATURES
1 | High and low voltage input for option |
2 | Good heat dissipation with beautiful appearance |
3 | Natural cooling |
Condition: All specifications are tested under the room temperature 25 ℃, Normal input voltage and Pure Negative Normal Load
III. INPUT CHARACTERISTIC
Rated value(VDC) | Voltage Range(VDC) |
24VDC | 18-36VDC |
IV. OUTPUT CHARACTERISTIC
Parameter | Value |
Power | 150W |
Output Voltage | 12VDC |
Output Current | 12.5A |
Line Regulation | ±0.5% |
Load Regulation | ±0.5% |
Voltage Set-point Accuracy | ±2% |
Output Current Limiting | 120%(Typ) |
V. PROTECTIVE CHARACTERISTIC
1 | Input under voltage protection |
2 | Input over voltage protection |
3 | Over temperature protection |
4 | Output over current protection |
5 | Output short circuit protection |
GENERAL CHARACTERISTIC
Parameter | Value |
Switching Frequency | 100-200KHz |
lsolation Resitstance | 200MΩ |
lsolation Voltage
Parameter | Value |
Input-Output | >1500VDC |
Input-Case | >1050VDC |
Output-Case | >500VDC |
Environmental Characteristics
Parameter | Value | |
Case Temperature | Industry | -25 – +85℃ |
Military l | -40 – +85℃ | |
Storage Temperature | Industry | -45 – +105℃ |
Military | -55 – +105℃ | |
VI. MECHANICAL DRAWING AND PIN DEFINITION
Typical Applications
The MDB150-24S12 is widely used in:
PLC Control Cabinets
Industrial Automation Equipment
Remote I/O Systems
Industrial Communication Cabinets
Machine Control Panels
Data Acquisition Systems
Factory Automation Systems
Why Choose MINGZINC?
MINGZINC develops application-oriented isolated DC-DC power solutions based on real industrial system requirements.
We focus on solving practical engineering challenges including:
Industrial voltage fluctuations
Electrical noise interference
Limited cabinet space
Multiple auxiliary voltage requirements
Long-term unattended operation
Our engineering capabilities include:
Wide input voltage design
Isolated power architecture
Customized output solutions
Industrial reliability optimization
Mechanical integration support
OEM/ODM development
Customer Benefits
With the MDB150-24S12, customers can:
Improve PLC control system reliability
Reduce communication failures and sensor errors
Simplify cabinet power architecture
Reduce wiring complexity and component count
Save installation space inside control cabinets
Minimize maintenance requirements
Increase industrial equipment uptime
Reduce automation project integration risks
Application Positioning Recommendation
Application Category:
Industrial Automation Power Solutions
Target Industries:
Industrial Automation
PLC Control Systems
Machine Manufacturing
Factory Equipment
Industrial Communication