akse srl
Via Aldo Moro, 39 42124 Reggio Emilia Italy
Tel. +39 0522 924 244 Fax +39 0522 924 245 [email protected] www.akse.it
P.I. 01544980350 R.E.A. 194296 Cap. Soc. Euro 85.800,00 i.v.
Subject to modifi cation without notice.
Edition 2017 05 02 ENG0137
STAR 4W (4 WIRES) 3PH-4W LV
The instrument is fi tted with a separate power supply. The power supply terminals are
numbered (17 e 18). Use cables with max cross-section of 2,5 mm
2
if stranded, 4 mm
2
if
rigid.
POWER SUPPLY
VOLTAGE AND CURRENT CONNECTION
STAR 4W (4 WIRES) 3PH-4W MV
SINGLE PHASE (2 WIRES) 1PH-2W
TRIANGLE 3W (3
WIRES) 3PH-3W
TRIANGLE 2CT (3
WIRES) 3PH-3W
TRIANGLE 2CT(3
WIRES) 3PH-3W MV
BI-PHASE (2
WIRES) 2PH-2W
Made
in
Italy
Pensato, progettato e prodotto in Italia
Engineered and manufactured in Italy
12
20
19
10 11
AUX IN/OUT
S1 S2 S1 S2 S1 S2
I1
I2
I3
VOLTAGE INPUTS
POWER
SUPPLY
RS-485
CURRENT INPUTS
18
17
V1 V2 V3 N
A B
T
21
EXPBUS
ETHERNET
L1
N
S1
S2
P1
P2
12
20
19
10 11
AUX IN/OUT
S1 S2 S1 S2 S1 S2
I1
I2
I3
VOLTAGE INPUTS
POWER
SUPPLY
RS-485
CURRENT INPUTS
18
17
V1 V2 V3 N
A B
T
21
EXPBUS
ETHERNET
L1
L2
S1
S2
P1
P2
12
20
19
10 11
AUX IN/OUT
S1 S2 S1 S2 S1 S2
I1
I2
I3
VOLTAGE INPUTS
POWER
SUPPLY
RS-485
CURRENT INPUTS
18
17
V1 V2 V3 N
A B
T
21
EXPBUS
ETHERNET
L1
L2
L3
S1
S2
P1
P2
S1
S2
P1
P2
12
20
19
10 11
AUX IN/OUT
S1 S2 S1 S2 S1 S2
I1
I2
I3
VOLTAGE INPUTS
POWER
SUPPLY
RS-485
CURRENT INPUTS
18
17
V1 V2 V3 N
A B
T
21
EXPBUS
ETHERNET
L1
L2
L3
S1
S2
P1
P2
S1
S2
P1
P2
S1
S2
P1
P2
12
20
19
10 11
AUX IN/OUT
S1 S2 S1 S2 S1 S2
I1
I2
I3
VOLTAGE INPUTS
POWER
SUPPLY
RS-485
CURRENT INPUTS
18
17
V1 V2 V3 N
A B
T
21
EXPBUS
ETHERNET
L1
L2
L3
N
S1
S2
P1
P2
S1
S2
P1
P2
S1
S2
P1
P2
12
20
19
10 11
AUX IN/OUT
S1 S2 S1 S2 S1 S2
I1
I2
I3
VOLTAGE INPUTS
POWER
SUPPLY
RS-485
CURRENT INPUTS
18
17
V1 V2 V3 N
A B
T
21
EXPBUS
ETHERNET
L1
L2
L3
S1
S2
P1
P2
S1
S2
P1
P2
S1
S2
P1
P2
12
20
19
10 11
AUX IN/OUT
S1 S2 S1 S2 S1 S2
I1
I2
I3
VOLTAGE INPUTS
POWER
SUPPLY
RS-485
CURRENT INPUTS
18
17
V1 V2 V3 N
A B
T
21
EXPBUS
ETHERNET
L1
L2
L3
S1
S2
P1
P2
S1
S2
P1
P2
12
20
19
10 11
AUX IN/OUT
S1 S2 S1 S2 S1 S2
I1
I2
I3
VOLTAGE INPUTS
POWER
SUPPLY
RS-485
CURRENT INPUTS
18
17
V1 V2 V3 N
A B
T
21
EXPBUS
ETHERNET
L
N
FUSE
(500mA T)
85 ÷ 265 V ±10%
Voltage connection:
Use cables with max cross-section of 2,5 mm
2
if stranded 4 mm
2
if rigid and connect them to the clamps marked VOLTAGE INPUT on the instrument according
to the applicable diagrams that follow.
Current connection
: It is necessary to use external CTs with a primary rating adequate to the load to be measured and with a 5A or 1A secondary rating. Connect the CT output(s) to
the terminals marked I1, I2, I3 (CURRENT INPUT) of the instrument according to the applicable diagrams that follow. Use cables with cross-section adequate to the VA rating of the CT
and to the distance to be covered. The max cross-section for the terminals is 2,5 mm
2
if stranded and 4 mm
2
if rigid.
Note:
The CT secondary must always be in short circuit when not connected to the instrument in order to avoid damages and risks for the operator.
Scrupulously respect the matching of phase between the voltage signals and current signals (RTD) and the direction of insertion of CT (P1-P2 and S1-S2). Failure to comply with this
correspondence and connection diagrams gives rise to measurement errors. (*) The grounding of S2 must be close to the CT and not near the instrument.
