DC Overcurrent Protection Device

DC Overcurrent Protection Device


Snaptec introduces a dc overcurrent protection unit. Model NEF210 is a microprocessor controlled unit that can perform 2 functions:

  • DC overcurrent protector with two output channels rated 2 to10A usable in any system rated 10…31Vdc
  • Static relay with two output channels rated 10A usable in any system rated 10 to 31Vdc

    NEF210 is used on critical applications to protects DC loads that require selectivity. This unit monitors the load current of a maximum of two output channels and, in case of load failure, isolates the load to protect the components connected to the system.

    The main features are:
  • Ultra-compact DC overcurrent protector with two independent channels
  • Classic circuit breaker shape
  • Input: 10 to 31Vdc / maximum 20A
  • Output: maximum 10A per channel (user settable, independently)
  • Digital power regulation
  • Programmable static switch function
  • Advanced CPU control allows set-up of various tripping curves
  • Modbus over USB interface for control and monitoring
  • Suitable for POWERMASTER software (available for Windows and Android OS)


    • Functional description :
    NEF210 is a high performance dual channel overcurrent protector that can be used in any DC system with a rated voltage between 10V and 31V and up to 20A. At the core of the device, two MOSFETs driven by a microcontroller acts as a fuse. In case of overload or short circuit the monitoring and control stage disables in a targeted way the concerned output channel.