ABB RET 541 - Page 37

Transformer Terminal RET 541, RET 543, RET 545
1MRS755543
37
Ordering The following is to be specified when order-
ing RET 54_ transformer terminals:
• Order number (see figure below)
• Display language combination (e.g.
English-German)
• Quantity of transformer terminals
Each RET 54_ transformer terminal has a
specific order number that identifies the
transformer terminal type as well as the hard-
ware and the software as described in the fig-
ure below. The order number is printed on the
marking strip on the front panel of the trans-
former terminal delivered, e.g. Order No:
RET543AB230AAAA.
RET54_AB230AAAA
Software revision: A
Transformer terminal type: RET 541, RET 543, RET 545
Hardware number: 230, 231, 232, 233, 234, 235,
240, 241, 242, 243, 244, 245,
250, 251, 252
A = fixed display, B = external display module
Auxiliary voltage range of the power supply module and
voltage range of the digital inputs
A: power supply: PS1/240 V (Medium) or PS2/240 V
U
r
= 110/120/220/240 V AC;
110/125/220 V DC
digital inputs: U
r
= 110/125/220 V DC
threshold voltage: U
t
= 80 V DC
B: power supply: PS1/240 V (High) or PS2/240 V
U
r
= 110/120/220/240 V AC;
110/125/220 V DC
digital inputs: U
r
= 220 V DC
threshold voltage: U
t
= 155 V DC
C: power supply: PS1/48 V (Low) or PS2/48 V
U
r
= 24/48/60 V DC
digital inputs: U
r
= 24/48/60/110/125/220 V DC
Reserved for future use
Reserved for future use
Functionality level: C = Control, B = Basic, M = Multi
ret54_ordernumber_
Fig. 5 Order number of RET 54_ transformer terminal.
Language combinations
The display language combination (see table
below) is identified by a three-digit suf-
fix in the software number labelled on the
front panel of the transformer terminal, e.g.
Software 1MRS110028-0_.
Suffix Language combination
001 English-German
002 English-Swedish
003 English-Finnish
007 English-Portuguese
008 English-Polish
009 English-Russian
010 English-Spanish
012 English-Czech
Number of digital inputs/outputs
The RET 541, RET 543 and RET 545 trans-
former terminals differ from each other as to
the number of digital inputs and outputs as
follows:
Number of inputs/outputs RET 541 RET 543 RET 545
Digital inputs
15 25 34
Trip circuit supervision inputs
2 2 2
Power outputs (NO single-pole)
0 2 3
Power outputs (NO double-pole)
5 9 11
Signal outputs (NO)
2 2 4
Signal outputs (NO/NC)
5 5 8