Burkert Type 8643 - Manual (Page 22)

22
Installation
supply connection 2-wire device 7.4.3.
The 2 conductor device is supplied via the bus.
Bus terminal
Connection for the bus supply in accordance with IEC 1158-2.
Bus supply in ignition protection type EEx e ii
(max. connected loads see EC Type Examination Certificate in the Appendix)
supply connection 4-wire device 7.4.4.
terminal 24 V DC
Connection for the power supply in the ignition protection type EEx e II. Max. connected loads see EC Type
Examination Certificate in the Appendix.
Bus terminal
Connection for the bus supply in accordance with IEC 1158-2.
There are two options available depending on the device model.
DAngeR!
Danger of explosion due to unauthorized combination of the ignition protection types!
Unauthorized combination of the ignition protection types may cause hazardous situations!
If the bus supply of the 4-wire version of the device was operated once in ignition protection type of •
increased safety (e), the bus supply may no longer be intrinsically safe in the ignition protection type (i).
Bus supply with increased safety
Ignition protection type: EEx e II
intrinsically safe bus supply •
Ignition protection type EEx ia IIC or ignition protection type EEx ia IIB
english
Type 8643 PA