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116 Connect Devices
WAGO-I/O-SYSTEM 750
750-489 4AI RTD/TC/Strain Gauge Ex i
Manual
Version 1.1.0, valid from FW Version 02
Power Supply Concept for Marine Applications in Ex i Class B
Figure 18: Power Supply Concept for Marine Applications in Ex i – Class B (shown with 750-
626/xxx-xxx for Field 2)
Table 135: Legend for figure “Power Supply Concept for Marine Applications in Ex i – Class B (shown
with 750-626/xxx-xxx for Field 2)”
No. Explanation
1
Fieldbus Couplers/Controllers
2
Filter module, 24 VDC, HI GF (750-626/020-002) or
Filter module, 24 VDC, HI (750-626/020-000) or
Filter module, 24 VDC, HI / Temperature (750-626/025-001)
3
Filter module, 24 VDC, HI GF (750-626/020-002) or
Filter module, 24 VDC, HI (750-626/020-000) or
Filter module, 24 VDC, HI / T (750-626/025-001)
4
Supply module, 24 VDC, Ex i, with diagnostics (750-606) or
Supply module, 24 VDC, Ex i (750-625/000-001)
5
Ex I I/O modules
6
End Module
Table 136: Explanation of the Legend for figure “Power Supply Concept for Marine Applications in Ex
i – Class B (shown with 750-626/xxx-xxx for Field 2)”
Explanation
HI
High Isolation (filter for isolation-monitored systems)
GF
Ground Fault (filter with ground fault diagnostics)