Redundancy modules

PULS' redundancy modules are available with efficient MOSFET or economically priced diode technology.


Redundancy modules with MOSFET technology | YR20.246Redundancy modules with MOSFET technology | YR20.246

High-efficient decoupling

Redundancy modules with MOSFET technology

PULS developed a decoupling solution with MOSFETs to fulfil the need for minimal no-load losses. For instance, when using a MOSFET module, a load current of 40A will only produce power losses amounting up to 3W.

With MOSFETs as a decoupling element, even voltage drops can be minimised. The voltage drop at 40A output current is lower than 50mV between the input and output.

After implementing MOSFETs, even the parallel-use mode achieves better thermal balance, thus leading to an extended lifetime of the power supplies. In this process, the load current is divided equally between the individual power supplies.

MOSFET redundancy module

Compare Article No. DC Output Input Dimension
WxHxD (mm)
Special Feature
12-28V 20A DC 12-28V 32 124 117 2 x 10A input
24-28V 20A DC 24-28V 32 124 117 2 x 10A input
12-28V 40A DC 12-28V (± 30%) 36 124 127 2x 20A input, for all power supplies
12-28V 40A DC 12-28V 36 124 127 2x 20A input
12-28V 40A DC 12-28V 46 124 127 1x 40A input
24-56V 40A DC 24-56V 46 124 127 2x 20A input, for all power supplies
12-28V 80A DC 12-28V 46 124 127 2x 40A input, for all power supplies
12-28V 80A DC 12-28V 46 124 127 2x 40A input


Redundancy module with diode technology | PIRD20.241Redundancy module with diode technology | PIRD20.241

Cost-oriented decoupling

Redundancy modules with diode technology

PULS also offers redundancy modules based on the cost-oriented diode technology. The modules are suitable to set up reliable 1+1 and n+1 redundancy systems.

Their compact and light-weight design makes them a perfect fit for applications with little space.

Diode redundancy module

Compare Article No. DC Output Input Dimension
WxHxD (mm)
Special Feature
12-48V 10A DC 12-48V (± 25%) 45 75 91 2x 5A input
12-48V 10A DC 12-48V (± 25%) 45 75 91 2x 5A input
12-24V 20A DC 12-28V (± 25%) 39 124 124 DC-OK relay contact
24V 40A DC 24-28V (± 30%) 48 124 117
24V 30A DC 24-28V (± 30%) 48 124 102
12-48V 20A DC 12-48V 32 124 102 2x 10A input
24-48V 20A DC 24-48V 32 124 117 2x 10A input, with signal contact


You might also be interested in the following products:

Power supplies with integrated decoupling function

  • 240W and 480W power supplies with built-in redundancy function
  • No need for additional redundancy modules
  • Reduced system complexity and costs
  • Space-savings of more than 45% 
  • Shorter installation times
  • Versions with hot-swap or spring-clamp terminals

Learn more

Power supplies with integrated decoupling functionPower supplies with integrated decoupling function
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Learn more about the benefits of MOSFET technology for redundant systems


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