The unique tap-off design also provides the essential safety element when inserting a tap-off onto a live busway system. The power contacts are engaged via a patented actuation system which not only controls the tap-off contacts, but also interlocks with the switching device to ensure that no load is connected during the engage operation.


  • Independently certified by ASTA to BS EN / IEC 61439-6
  • Two busway designs; DX for 160A to 630A and DX Plus for 800 to 1000A systems with 3, 4 or 5 poles in the same footprint
  • Continuous open channel permits tap-offs to be installed anywhere along the busway (IP2X)
  • Flexible extension and re-configuration with integral plug-n-play jointing system
  • A patented design feature within the tap-off unit centres around the actuator mechanism puts safety and efficiency at the forefront of the design and installation process.
  • IP3X achievable by using the channel cover strip solution
  • Available in 1m, 2m and 3m lengths as standard. Non -standard lengths also available on request
  • Optional overrated neutrals or 100% integral earth conductor
  • The busbar trunking system has also been independently tested for resistance to Arc Flash in accordance with IEC / BS EN 61641 and seismically tested to IEEE 344-2103.


  • The compact design of the DATABAR busway is ideal in situations where low ceiling height and IT / fibre conduits compete for space.
  • Safety in simplicity and scalability – there are only two DATABAR sizes: 160a-630a and 800a-1000a. The same low-profile housing accommodates both 4 and 5 pole systems while maintaining the smallest footprint design.
  • The open channel modular busway construction allows the tap-off units to be placed at any location along the busway. Tap-off designs are available to install over the joint if necessary and the whole design is aimed at flexibility and simplicity.
  • Easy installation, extension and development means that an investment in DATABAR today will still be giving you a return in years to come.

SPECIFICATIONS – 160/250/400A/630A

Rated Current In [A] 160, 250A, 400A, 630A
Rated operating voltage Ue [V] 600
Rated insulation voltage Ui [V] 1000
Frequency f[Hz] 50/60
Degree of protection IP 2X
Casing Material Aluminium
Conductor material Cu (99.9%) BS EN 13601
Case dimensions (4 or 5 pole systems) W x H mm 165 x 47
Phase Neutral or Isolated Earth Conductor CSA CSA [mm2] 1457
Case Earth (PE) CSA CSA [mm2] 194
Weight (4 pole systems) p[kg/m] 12.9
Weight (5 pole systems) p[kg/m] 14.5
Rated short-time current for three phase fault Icw[kA] rms 30
Allowable peak current for three phase fault Ipk [kA] 64.2
Rated conditional protection for three phase fault Icc [kA] 50
Conditional protection peak current rating Ipk [kA] 106
Impact Resistance IK IK08




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