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Mean Well DC-DC Converters DDRH-120 Series Supplier
SCB Industries is a leading and trusted Mean Well DC-DC Converters DDRH-120 Series Supplier, offering advanced 120W DIN-rail mounted DC-DC solutions designed for rugged industrial environments. The DDRH-120 Series delivers high stability, reinforced isolation, wide input ranges, and exceptional durability—making it ideal for automation, control panels, telecom systems, and remote industrial applications.
About Our Product – DDRH-120 Series
The Mean Well DC-DC Converters DDRH-120 Series is a high-performance DC-DC converter engineered for industrial use where isolated, noise-free, and efficient power is crucial. With a slim DIN-rail design and up to 92% efficiency, this series supports harsh conditions, wide temperature variations, and continuous operation in demanding installations.
Description
DDRH-120 series is a 250 ~ 1500Vdc high reliable ultra-high input DIN rail type DC-DC converter which can supply stable working voltage for the load. It is suitable to be mounted on TS-35/7.5 or 15 rails. Main features are as following: easy to install DIN rail type, narrow width(63mm) in slim design, -40~+80° C wide range operating temperature, 4KVac high isolation voltage, operation at 5000m altitude, high efficiency, low ripple & noise, complete protections and so on.
DDRH-120 is compliant with UL1741 and BS EN/EN61000-6-2 standard regarding immunity for industrial environments. It is suitable for industrial automation, surveillance, telecommunication and can be widely deployed in the applications of new energy generation such as solar power, and windmill power generation, for instances, photovoltaic power systems, high voltage inverting , DC bus centralized application, ESS, charging pile, railway and so forth.
Features
- 250~ 1500Vdc 6:1 ultra-wide input range
- Withstand 1700Vdc surge input for 10 seconds
- 63mm slim width
- 4KVac I/O high isolation(Reinforced isolation)
- Protections: Short circuit / Overload / Over voltage / Over temperature / DC input under voltage / DC input reverse polarity
- Fanless design, cooling by free air convection
- 3 years warranty
- Can be installed on DIN rail TS-35/7.5 or 15
- -40~+80°C ultra-wide operating temperature (>+50°C derating)
- Over voltage categoryⅡ
- Operating altitude up to 5000 meters
- DC OK relay contact
- DC output voltage adjustable(12~15V, 24~29V, 30~36V, 48~58V)
- Conformal coating
Application
- Photovoltaic power generation
- Renewable Energy System
- High voltage freqency conversion
- Industrial control system
- Semiconductor fabrication equipment
- Electro-mechanical apparatus
- DC bus centralized application
- Energy storage system(ESS)
- Charging pile
- Third rail
Types of Mean Well DDRH-120 Series
Mean Well DC-DC Converters DDRH-120-12
- 12V output model
- Suitable for PLCs, relays, industrial sensors, automation controllers
- Offers high stability and low ripple performance
Mean Well DC-DC Converters DDRH-120-24
- 24V output model
- Most widely used in SCADA, DCS, machine automation, HMIs
- Ensures robust performance for standard industrial voltage circuits
Mean Well DC-DC Converters DDRH-120-32
- 32V output model
- Designed for specialized automation devices, battery-operated systems, industrial communication units
- Perfect for equipment requiring uncommon DC output levels
Mean Well DC-DC Converters DDRH-120-48
- 48V output model
- Ideal for telecommunication networks, energy storage systems, remote stations
- Efficient power delivery for long-distance DC lines
Difference Between All Types
Each model provides reinforced isolation, low noise, and high efficiency, but serves different voltage-dependent industrial requirements.
Model | Output Voltage | Best Use Case | Key Advantage |
DDRH-120-12 | 12V | PLCs, relays, HMIs | Stable output for industrial control |
DDRH-120-24 | 24V | Main automation systems | Standard industrial compatibility |
DDRH-120-32 | 32V | Specialized industrial devices | Unique output for niche applications |
DDRH-120-48 | 48V | Telecom, networking, battery systems | Low-loss, long-distance efficiency |
Technical Highlights
- Power Rating:120W
- Wide Input Ranges:9–36VDC or 18–75VDC
- Output Options:12V / 24V / 32V / 48V
- High Isolation Voltage:Up to 2kVDC
- Efficiency:Up to 92%
- Slim DIN Rail Design
- Cooling Method:Natural air convection
- Operating Temperature:–40°C to +85°C
- Protections Included:
- Overload
- Overvoltage
- Short Circuit
- Certified for Industrial Reliability
Where We Can Use This Product
The Mean Well DC-DC Converters DDRH-120 Series is ideal for:
- Electrical control panels
- Industrial automation & robotics
- PLC & HMI power systems
- IIoT and communication devices
- Telecom towers & network equipment
- Remote monitoring and RTU stations
- Renewable energy storage systems
- Transportation & railway electronics
- Battery-powered industrial equipment
Applications of DDRH-120 Series
- Isolation and conversion of DC power in automation
- Noise-free power for sensitive equipment
- Stable DC supply for field devices and process control
- Voltage stabilization in harsh electrical environments
- Long-distance DC transmission applications
- Telecom and surveillance infrastructure
Technical Chart
Specification | Details |
Power Capacity | 120W |
Input Voltage | 9–36VDC / 18–75VDC |
Output Voltages | 12V / 24V / 32V / 48V |
Isolation Rating | 4.2kVDC |
Efficiency | Up to 92% |
Mounting Type | DIN Rail TS-35/7.5 or 15 |
Cooling Type | Natural Convection |
Protection Modes | OLP / OVP / SCP |
Premium Quality Mean Well Products Available in Your Location
SCB Industries supplies DDRH-120-12, DDRH-120-24, DDRH-120-32, and DDRH-120-48 across: Kolkata, West Bengal, Odisha, Bihar, Chhattisgarh, Assam, Gujarat, Pune & Vapi. Expect genuine Mean Well products, best pricing, and immediate delivery.
Why SCB Industries is Preferred in Kolkata, Pune, Vapi & Across India
SCB Industries is committed to delivering reliable, long-lasting, and efficient DC power solutions for modern industries.
- Trusted Mean Well DC-DC Converter Supplier
- Guaranteed original & certified industrial power products
- Large ready stock for fast shipping
- Expert assistance in selecting the right model
- Competitive prices for bulk and project requirements
- Strong after-sales support and technical guidance




