Electrical circuits protection

Against overcurrents and short-circuits
Two types of device are used to protect circuits against current overloads and short-circuits: the fuse switch-disconnector and the circuit breaker. >
They cut off power in the event of a fault on the circuit.

Protection against prolonged overvoltages
These devices, increasingly used in street lighting for added safety and maintenance support they provide, detect any problem with "phase/phase" connection or any neutral break synonymous with temporary or prolonged voltages of 400V or more.

More information

More information

FUSE SWITCH-DISCONNECTOR
The simplest device for protecting circuits. Works with a calibrated fuse cartridge. As the neutral remains connected, the switch has to be opened manually to cut off power completely.
Advantages •

  • High breaking capacity, size, price. • 
  • Available also in Neozed or D0 versions (not including cutting off). 

CIRCUIT BREAKER
In the event of an overcurrent or shortcircuit, the circuit breaker automatically breaks the circuit.
Advantages •

  • Both poles are mechanically cut. • 
  • Simple to reset. • 
  • Easy to identify the defective circuit. 

VARISTORS
One varistor associated with a fuse switchdisconnector is a protection and a simple detection of prolonged overvoltages.