English – Burkert Type 8643 User Manual
Page 16

16 - 8643
english
name
value
Outputs
4, intrinsically safe
Outputs for pilot valves
Min. switching current
Min. holding current
Internal resistance
Open-circuit voltage
30 mA
1)
15 mA
330 Ohm
24 v
1)
Power reduction on holding current after min. 50 ms.
Electrical connections for inputs
and outputs
Screw terminals (up to 2.5 mm
2
)
Fieldbus interface
Communication according to
IEC 1158-2
4-Lead version
According to FISCO
Type of ignition protection
Ex i
Electrical connection
Bus 4 screw terminals (up to 2.5 mm
2
)
Shield 3 screw terminals
(1x directly and 2x capacitively ground-
ed)
2-Lead version
Type of ignition protection
Ex e
Auxiliary supply
4-Lead version only
Type of ignition protection
Increased safety Ex e
Electrical connection
4 screw terminals (up to 2.5 mm
2
)
Device keys (see type plate)
2-Lead version
Polyester housing
8643-2-PO-XX-X-XXX
2-Lead version
Aluminum housing
8643-2-AL-XX-X-XXX
4-Lead version
Polyester housing
8643-4-PO-XX-X-XXX
4-Lead version
Aluminum housing
8643-2-AL-XX-X-XXX
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- Type 0330 (2 pages)
- Type 0331 (4 pages)
- Type 6012 (4 pages)
- Type 0127 (18 pages)
- Type 0131 (5 pages)
- Type 0141 (5 pages)
- Type 0142 (12 pages)
- Type 0145 (3 pages)
- Type 0174 (5 pages)
- Type 0212 (2 pages)
- Type 0211 (5 pages)
- Type 0212-B (18 pages)
- Type 0250 (64 pages)
- Type 0253 (2 pages)
- Type 0255 (15 pages)
- Type 0355 (2 pages)
- Type 0255 (2 pages)
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- Type 0256 (15 pages)
- Type 0256 (2 pages)
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- Type 0280 (2 pages)
- Type 0280 (12 pages)
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- Type 0283 (2 pages)
- Type 0286 (4 pages)
- Type 0287 (15 pages)
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- Type 0300 (6 pages)
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- Type 0311 (2 pages)
- Type 0312 (6 pages)
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- Type 6519 (4 pages)