ABB Relion REB500, Product Manual, Page: 47 / 50

Distributed busbar protection REB500 1MRK 505 352-BEN
Product version: 8.2 Issued: 2016-03-01
Revision: -
ABB 47
Order code Switches/ Transceivers
Switch AFS677: x 1MRK010500- Transceiver x 1MRK010501- AA
System
up to 10 BU 1
n BU’s
+2 =
up to 24 BU 2
n BU’s
+6 =
up to 38 BU 3
n BU’s
+8 =
up to 52 BU 4
n BU’s
+10 =
up to 60 BU 5
n BU’s
+12 =
Switch data
24/36/48V DC no redundant power supply module AA
24/36/48V DC redundant power supply module
BA
110/250 V DC / 110/230 V AC no redundant
power supply module
CA
110/250 V DC / 110/230 V AC redundant
power supply module
DA
Remark: All switches of the system shall be from the same type (same order number)
Technical details of the switch are listed in the respective manual 1KHD641605
Example for a system with 22 Bay Units:
Switch AFS677: 2 x 1MRK010500- CA Transceiver 28 x 1MRK010501- AA
System
up to 24 BU 2 n BU’s 22 +6 = 28
Switch data
110/250 V DC / 110/230 V AC no redundant
power supply module
CA
For details about REB500 process bus/ switch configuration see section 8.