ABB Relion REX640 User Manual page 23

2NGA000105 B
BIO-Tester Relion® REX640
User Manual
GUID-5D4C7B10-17CA-4F59-B9E0-8024CB82CDE8 V1 EN
Figure 4: Connector side of the protection relay
1 Slot markings in enclosure (top and bottom)
2 Ready LED
The relay has mandatory and optional slots. A mandatory slot always contains a
module, while an optional slot may be empty, depending on the composition variant
ordered.
BIO-Tester Relion® REX640
Section 4
1
2
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