ZENER BARRIER KZBA (Boxed Version of the ZBA1S)

Description

“KMB4” BOX WITH PASSIVE SAFETY ZENER BARRIERS, FOR ATEX ENVIRONMENTS

Kit of three intrinsic protection Zener barriers, for connection of devices in ATEX area with devices in safe area, housed in an ABS box.
Marking of single barrier: ATEX II (1) GD [Ex ia Ga] IIC [Ex ia Da] IIIC.
Marking of the whole box with three Zener barriers:
ATEX II 3(1)G Ex nA [ia Ga] IIC T4 Gc (-20°C ≤ Ta ≤ +40°C) for gas
ATEX II 3(1)D Ex tb [ia Da] IIIC T130°C Dc IP65 (-20°C ≤ Ta ≤ +40°C) for dust.

   

SINGLE CHANNEL FEATURES

  • Barrier for signal and sense: Um=250V
    Fuse: 50mA
    Uo: 17,4V
    Io: 25mA
    Po: 0,11W
    Co: 0,346µF
    Lo: 56,88mH
    Rmin: 705,6Ohm
  • Barrier for supply: Um=250V
    Fuse: 100mA
    Uo: 24V
    Io: 164mA
    Po: 0,98W
    Co: 0,125µF
    Lo: 1,32mH
    Rmin: 147Ohm
  • NOTES:
    – Connection with up to 4 load cells of 350 ohm each.
    – The combination of two or more Zener barriers (1) GD [Ex ia] implies that the Atex marking of the barriers assembly must be update to (2) GD [Ex ib], as required by the EN 60079-14 standard.

 

WARNING
The KMB4 kit can be placed in ATEX zone according to its ATEX marking or in alternative in a safe area.

 

The electric coordination, executed for realizing the DCATEXMB4 certificate, involves the use of the LCCB/EXCB6 cable, maximum length of 200m (greater lengths upon price estimate).

Additional information

Type of Equipment

Applicable Zone

,

Temperature Rating