Burkert Type 8643 - Handbuch (Seite 6)

20
Electrical connections
for inputs and outputs
Screw terminals (up to 2,5 mm²)
Technical data categorised 7.2.
according to type
Name 2-lead-version 4-lead-version
Ambient temperature
Polyester
-20 ... +55 °C
-20 ... +60 °C
Aluminium -20 ... +57 °C
Power supply voltage
Auxiliary supply
24 V
- 17 ... 32 V DC
Max. current
demand 320 mA (17 V)
220 mA (24 V)
160 mA (32 V) 200 mA (17 V)
140 mA (24 V)
110 mA (32 V)
Bus voltage 17 ... 32 V DC 9 ... 32 V DC
Bus current
consumption - 12 mA /17 mA FDE
Fieldbus interface (Communication according to IEC
1158-2)
Communication
- according FISCO
english 21
Name 2-lead-version 4-lead-version
Type of ignition
protection
Ex e Ex i
Electrical
connection - Bus 4 screw ter-
minals (up to
2.5 mm
2 )
Shield 3 screws
terminals
(1x directly and 2x
capacitively earthed)
Auxiliary supply
Type of ignition
protection
- Increased safety
Ex e
Electrical
connection - 4 screws terminals
(up to 2.5 mm
2 )
Device keys (see type plate)
Polyester
housing
8643-2-PO
-XX-X-XXX 8643-4-PO
-XX-X-XXX
Aluminium
housing 8643-2-AL
-XX-X-XXX 8643-2-AL
-XX-X-XXX
english
22
The cable resistance to the sensors and actu- •
ators may be max. 20 Ω.
The Power I/O Box Type 8643 may be supplied •
with low safety voltage in accordance with VDE
0631 only.
The Power I/O Box satisfies the conditions of the •
EMC Law. EN61000-6-2 Interference Resistance,
EN61000-6-4 Interference Emission
The safety-related maximum values for operation
•
in explosion-risk area can be found in the Type
Examination Certificate in the Appendix.
english 23
dimensions 7.3.
260
160 188
110
240
92
Dimensions Type 8643 Bild 2:
english
Type 8643