BZG767PLUS Barrier Type, BZG767PLUS | GEORGIN 1 Channel Double Zener Barrier, ATEX

Zener barriers contribute to the intrinsic safety [Ex i] and are installed in safe areas. Their mission is to limit the level of energy that may appear in an electric circuit routed through a potentially explosive area, whatever the connection established upstream of the barrier.A barrier is made up of:- resistors that limit the current- Zener diodes that limit the voltage- fuses that protect the components
When a fault voltage is applied across the input terminals of the barrier, the voltage that may appear in the explosive zone is limited by a Zener diode, which is in turn protected by a fuse.The current is limited to an acceptable value by the resistor.They can be installed in zone 2, thanks to the Ex nA certification in an IP 54 housing.
Zener barrier for logic signalsPolyester enclosure / DIN Rail mountingFor floating potential wiring3/4: U0=15.79V I0=83.08mA P0=327.85mW2/3: Ua=13.8V Ifm=100mA RL=103.6ohmNumber of channels: 1Screw terminals
ATEX / IECEx informations:INERIS 11ATEX0024X / IECEx INE11.0009XGroup II (surface) - category (1) G/DII(1) GD [Ex ia Ga] IIC, IIB or [Ex iaD Da] IIICII3(1) G Ex nA [ia Ga] IIC T4 GcInstallation in safe zone or zone 2For equipment installed in zone 0,1,2,20,21,22See leaflet for a safe use