Обяснение:

Zener barrier is a device used to limit electrical power to prevent explosion. In hazardous areas, it provides safe connection between field equipment and other systems.

Zener barrier includes:

• resistances for limiting current

• Zener diodes  for limiting  voltage

• fuses for protecting components

Zener barrier is easy to use and is a confidential system. This device is used in ECI-Ex and PWI-Ex products at.