XDDR-20/DRDN-20 12V/24V/48V 20A Din Rail Type Redundancy Module Support 1+1 and N+1 Redundancy System

The SDDR Series (XDDR-20/DRDN-20) is an industrial-grade 20A DIN Rail Redundancy Module engineered to safeguard critical power systems and minimize the risk of operational downtime. Designed to support both 1+1 hot-swappable and N+1 scalable redundancy configurations, this module ensures continuous power delivery for demanding industrial environments. By integrating advanced MOSFET technology, the unit achieves efficient energy conversion, significantly reduces heat generation, and maintains a minimal voltage drop. This makes it a vital component for industrial automation, semiconductor manufacturing equipment, and electromechanical systems requiring dependable power backup. For procurement teams and facility managers, integrating this redundancy module translates to enhanced system stability, reduced maintenance costs, and long-term operational security.

Core Features & Operational Advantages

To support rigorous project requirements, the SDDR series merges essential performance features with practical procurement benefits, ensuring long-term value for complex power architectures.

• Scalable Power Redundancy

  Supports 1+1 redundancy for immediate failover protection and N+1 configurations for multi-power supply systems. This flexibility allows facility engineers to build resilient power architectures tailored to specific load requirements and safety margins.

• High-Efficiency MOSFET Technology

  Utilizing advanced MOSFET switching components, the module achieves up to 98% typical efficiency. This design ensures a minimal voltage drop of ≤0.25V at full load, reducing power loss and preventing excessive heat buildup within confined control cabinets.

• Ultra-Slim Profile & Fanless Cooling

  Measuring just 32mm in width, the compact DIN rail mounting design saves valuable space in crowded enclosures. It operates via free air convection cooling, eliminating the need for mechanical fans, which reduces maintenance needs and potential failure points.

• Extreme Temperature Resilience

  Engineered for harsh industrial environments, the module functions dependably across an ultra-wide temperature range of -40°C to +80°C. This ensures stable performance in unconditioned facilities, outdoor enclosures, or high-heat manufacturing zones.

• Real-Time Monitoring & Safety Compliance

  Equipped with built-in 2-channel DC OK relay contacts, the unit provides immediate feedback on output status to centralized control systems. It fully complies with IEC62368-1, UL62368-1, and EAC TP TC004 safety standards, ensuring secure integration into global projects.

Ideal Application Scenarios

The universal input design (supporting 12V/24V/48V DC depending on the model suffix) makes this redundancy module highly adaptable for various industrial sectors:

• Industrial Control Systems: Provides uninterrupted power to PLCs, sensors, and critical control nodes, preventing costly production halts.

• Semiconductor Fabrication Equipment: Ensures stable voltage delivery for sensitive manufacturing processes where power fluctuations can impact yield.

• Factory Automation: Supports robotic arms, conveyor networks, and automated guided vehicles (AGVs) by maintaining consistent power availability.

• Electro-Mechanical Apparatus: Delivers dependable redundant power for heavy machinery and complex electromechanical setups requiring continuous uptime.

Technical Specifications

The following parameters detail the operational limits and physical characteristics of the SDDR Series, assisting engineering teams in accurate component selection.