“KMB4” Box With Passive Safety Zener Barriers, For ATEX Environments

From: £144.00

Kit of three intrinsic protection Zener barriers, for connection of devices in ATEX area with devices in safe area, housed in an ABS box.

Clear

Description

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.

Available versions:

  • KMB4 –  Kit of 3 ATEX zener barriers for load cells, in an ABS box. For up to 4 load cells of 350 ohm, for intrinsic protection weighing systems in an hazardous area. 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 dusts.
  • ZBPW – Intrinsic protection Zener barrier for load cell supply, for mounting on DIN bar in a safe area, or in a hazardous-proof case. Marking: ATEX II (1) GD [Ex ia Ga] IIC [Ex ia Da] IIIC.
  • ZBSG –  Intrinsic protection Zener barrier for load cell signal, for mounting on DIN bar in a safe area, or in a hazardous-proof case. Marking: ATEX II (1) GD [Ex ia Ga] IIC [Ex ia Da] IIIC.
  • ZBSN –  Intrinsic protection Zener barrier for load cell sense, for mounting on DIN bar in a safe area, or in a hazardous-proof case. Marking: ATEX II (1) GD [Ex ia Ga] IIC [Ex ia Da] IIIC.

 

Additional information

Model

KMB4, ZBPW, ZBSG, ZBSN

You may also like…