Description

The TDK-Lambda DRB240-48-3-A0 is a compact, industrial-grade DIN rail-mounted 3-phase power supply delivering 240W output at 48VDC / 5A. Designed for demanding control, automation, and communication systems, it combines efficiency, safety, and durability within a robust, space-saving footprint.

This model supports a 3-phase AC input voltage range from 350 to 575VAC (50/60Hz), offering flexible integration into international systems. Its output voltage is adjustable between 45 to 55VDC, with a boost mode output of 6A (288W) for up to 600 seconds—suitable for capacitive or motor loads with high start-up currents.

Engineered for reliability, the DRB240-48-3-A0 features constant current overload protection, latch-mode overvoltage shutdown, and remote inhibit functionality. A built-in DC-OK relay contact provides real-time status feedback, ideal for integration into automated monitoring systems or SCADA environments.

With convection cooling, high energy efficiency of up to 92.5%, and full safety approvals including IEC/EN/UL/CSA 61010-1 and 62368-1, this model delivers dependable performance in environments up to +70°C without derating below +55°C. It is housed in a slim 65mm enclosure and mounts easily to standard DIN rails.

Features and Benefits – TDK-Lambda DRB240-48-3-A0

• 48VDC Output at 5A Continuous (240W):
  Provides reliable power for industrial automation, process control, sensors, and communication equipment requiring higher voltage levels.
• Boost Mode Output – 6A (288W) for 600 Seconds:
  Accommodates temporary overload conditions or inrush currents, making it ideal for systems with inductive or capacitive loads.
• Wide 3-Phase Input Range (350–575VAC):
  Compatible with standard global 3-phase supplies, ensuring flexibility in industrial deployments and reduced need for adaptation.
• High Efficiency (up to 92.5%):
  Minimises power loss and internal heating, reducing energy costs and improving overall system thermal management.
• Constant Current Overload Protection:
  Maintains system stability under fault conditions and transitions to hiccup mode to prevent component damage.
• Remote Inhibit Control:
  Enables shutdown from remote or automated systems, enhancing operational control and system safety.
• DC-OK Relay Output:
  Provides output voltage monitoring for integration into SCADA systems, PLCs, or remote fault indication circuits.
• Adjustable Output Voltage (45 – 55VDC):
  Offers flexibility to suit a wide range of load requirements or to offset voltage drops over long cable runs.
• Reliable in Harsh Environments (-25°C to +70°C):
  Operates without derating below +55°C and uses convection cooling for quiet, low-maintenance performance.
• Compact DIN Rail Format (65mm Width):
  Saves panel space and installs easily into industrial control cabinets using TS35/7.5 or TS35/15 DIN rails.
• Global Compliance and Certification:
  Certified to IEC/EN/UL/CSA 61010-1 and 62368-1 with CE and UKCA markings for international regulatory assurance.
• IP20 Rated Housing:
  Suitable for secure integration into protected electrical enclosures and industrial automation panels.