ABB REF 541 Product Manual page 51

Feeder Terminal
Hardware modules of REF 543
Analogue interface
Sensor channels (current or voltage)
Current transformer 1/5 A
Current transformer 0.2/1 A
Voltage transformer 100 V
Main processor boards
CPU module
Power supply boards
PS1: 80...246 Vdc/ac (High)
PS1: 80...265 Vdc/ac (Medium)
PS1: 18...80 Vdc (Low)
PS2: 80...265 Vdc/ac
PS2: 18...80 Vdc
Digital I/O boards
BIO1: threshold voltage 155 Vdc
BIO1: threshold voltage 80 Vdc
BIO1: threshold voltage 18 Vdc
BIO2: threshold voltage 155 Vdc
BIO2: threshold voltage 80 Vdc
BIO2: threshold voltage 18 Vdc
Analogue I/O board
RTD/analogue module
Display boards
Graphic HMI display, fixed
Graphic HMI display, external
Mechanical design
1/2 enclosure
Digital inputs
Power outputs, single-pole
Power outputs, double-pole
Signal outputs (NO)
Signal outputs (NO/NC)
Supervised trip circuits
IRF outputs
RTD/analogue inputs
Analogue outputs
REF 541, REF 543, REF 545.
Order number
9 9 9 9 9
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1
1 1 1 1
1 1
1 1 1
1 1 1 1
1 1
1 1 1
1 1 1 1
1 1
1 1 1 1 1
1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
25
2
9
2
5
2
1
0
0
1MRS750443-MBG
9 9 9
1 1 1 1
1 1 1
1 1
1 1 1 1
1 1 1
1 1
1 1 1 1
1 1 1
1 1
1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1
25
2
9
2
5
2
1
8
4
9 9
1
1
1
1
1
1
51