1MRS755225
Transformer Terminal
Technical Reference Manual, General
RET 54_
15
Table 3.2.-5 Hardware versions of RET 543, 7I/2U transformers
HW modules
Order number
RET543A_241AAAA
RET543A_241BAAA
RET543A_241CAAA
RET543A_241AAAB
RET543A_241BAAB
RET543A_244AAAA
RET543A_244BAAA
RET543A_244CAAA
RET543A_244AAAB
RET543A_244BAAB
Analog interface
Current trafo 1/5 A 7777777777
Voltage trafo 100 V 2222222222
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