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1MRS755225
Transformer Terminal
Technical Reference Manual, General
RET 54_
Table 3.2.-4 Hardware versions of RET 543, 6I/3U transformers
HW modules
Order number
RET543A_240AAAA
RET543A_240BAAA
RET543A_240CAAA
RET543A_240AAAB
RET543A_240BAAB
RET543A_243AAAA
RET543A_243BAAA
RET543A_243CAAA
RET543A_243AAAB
RET543A_243BAAB
Analog interface
Current trafo 1/5 A 6666666666
Voltage trafo 100 V 3333333333
Main processor boards
CPU module 1111111111
Power supply boards
PS1: 80...265 VDC/AC (High) 1 1 1 1
PS1: 80...265 VDC/AC (Medium) 1 1 1 1
PS1: 18...80 VDC (Low) 1 1
PS2: 80...265 VDC /AC
PS2: 18...80 VDC
Digital I/O boards
BIO1: threshold voltage 155 VDC 1 1 1 1
BIO1: threshold voltage 80 VDC 1 1 1 1
BIO1: threshold voltage 18 VDC 1 1
BIO2: threshold voltage 155 VDC 1 1 1 1
BIO2: threshold voltage 80 VDC 1 1 1 1
BIO2: threshold voltage 18 VDC 1 1
Analog I/O board
RTD/analog module 11111
Display boards
Graphic HMI display, fixed 1 1 1 1 1 1
Graphic HMI display, external 1 1 1 1
Mechanic
1/2 enclosure 1111111111
Digital inputs
25 25
Power outputs, single pole
22
Power outputs, double pole
99
Signal outputs (NO)
22
Signal outputs (NO/NC)
55
Supervised trip circuits
22
IRF outputs
11
RTD/analog inputs
08
Analog outputs
04
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