Burkert Type 8643 - Manual (Page 23)

8643 - 23
english
6.4.3 supply connection 2-lead device
Illustration 6-3:
Terminal arrangement 2-lead device
TermInal Bus
Bus connection according to IEC 1158-2.
Bus supply for ignition protection type ex e II
(see EC-Type Examination Certificate in Annex for max. connection values)
6.4.4 supply connection 4-lead device
Illustration 6-4:
Terminal arrangement 4-lead device
TermInal 24 V DC
Connection for power supply in ignition protection type Ex e II.
See EC-Type Examination Certificate in Annex for max. connection values.
TermInal Bus
Connection for bus supply according to IEC 1158-2.
There are two variations available depending on the model of the device.
Bus supply with increased safety •
Explosion protection type: Ex e II
Inherently safe bus supply
•
Explosion protection type Ex ia IIC or Explosion protection type Ex ia IIB