ABB RET 541 - Page 43

Table 23: Hardware versions of RET 541, 8I/1U transformers
HW modules Order number
RET541A_232AAAA RET541A_232BAAA RET541A_232CAAA RET541A_232AAAB RET541A_232BAAB RET541A_235AAAA RET541A_235BAAA RET541A_235CAAA RET541A_235AAAB RET541A_235BAAB
Analog interface
Current rafo 1/5 A
8 8 8 8 8 8 8 8 8 8
Voltage trafo 100 V
1 1 1 1 1 1 1 1 1 1
Main processor boards
CPU module
1 1 1 1 1 1 1 1 1 1
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
BIO2: threshold voltage 80 VDC
BIO2: threshold voltage 18 VDC
Analog I/O board
RTD/analog module
1 1 1 1 1
Display boards
Graphic HMI display, fixed
1 1 1 1 1 1
Graphic HMI display, external
1 1 1
1
Mechanic
1/2 enclosure
1 1 1 1 1 1 1 1 1
1
Digital inputs
15 15
Power outputs, single pole
0 0
Power outputs, double pole
5 5
Signal outputs (NO)
2 2
Signal outputs (NO/NC)
5 5
Supervised trip circuits
2 2
IRF outputs
1 1
RTD/analog inputs
0 8
Analog outputs
0 4
Transformer Terminal RET 541, RET 543, RET 545
1MRS755543
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