18
1MRS755225
Transformer Terminal
Technical Reference Manual, General
RET 54_
Table 3.2.-8 Hardware versions of RET 545, 7I/2U transformers
HW modules Order number
RET545A_251AAAA
RET545A_251BAAA
RET545A_251CAAA
RET545A_251AAAB
RET545A_251BAAB
Analog interface
Current trafo 1/5 A 77777
Voltage trafo 100 V 22222
Main processor boards
CPU module 11111
Power supply boards
PS1: 80...265 VDC/AC (High)
PS1: 80...265 VDC/AC (Medium)
PS1: 18...80 VDC (Low)
PS2: 80...265 VDC /AC 1 1 1 1
PS2: 18...80 VDC 1
Digital I/O boards
BIO1: threshold voltage 155 VDC 2 2
BIO1: threshold voltage 80 VDC 2 2
BIO1: threshold voltage 18 VDC 2
BIO2: threshold voltage 155 VDC 1 1
BIO2: threshold voltage 80 VDC 1 1
BIO2: threshold voltage 18 VDC 1
Analog I/O board
RTD/analog module
Display boards
Graphic HMI display, fixed 1 1 1
Graphic HMI display, external 1 1
Mechanic
1/2 enclosure 11111
Digital inputs
34
Power outputs, single pole
3
Power outputs, double pole
11
Signal outputs (NO)
4
Signal outputs (NO/NC)
8
Supervised trip circuits
2
IRF outputs
1
RTD/analog inputs
0
Analog outputs
0