Satec ezPAC SA300 Series Installation Manual page 20

LINE 1
(A)
LINE 2 (B)
LINE 3 (C)
+ - + -
PT
+ - + -
SW1
Figure 2-8
SA310, SA320: Three Wire Open Delta Connection Using 2 PTs, 3 CTs (2
Wiring Mode = 3OP3
Chapter 2 Installation
CT
K L
-
+ K L
+ -
K
+
CURRENT
INPUTS:
SA310 150A
SA320 150A - -
-
I I
+ +
- -
1 2
1 2 3 4
J12
COM1
+Tx -Tx
RS-232
+Rx
5 1
JDR1 J3
1 2 3
6 9
RS-422/485
IRIG-B
INPUT VOLTAGE
J9
1 2 3
V V V V V
1 2 3
L
-
Shorting
Switches
- -
- - -
I I
+ +
- -
3 4
1
5 6 7 8
J14
COM2 +Tx -Tx
+Rx -Rx
-Rx
J1
4 5 1 2 3 4
RS-422/485
MODEM
1
J7 JP3
VDC
MEASURE
J10
4 5 6 1
+ -
V
4 4N
N
DC
MEASUREMENT
125/220V DC
½
-element)
LOAD
NOT CONNECTED
2 4 5 6 7 8
3
ETHERNET
USB
2 1
J11 J5
5
1
3 4
8
RDM
COM3
RS-485
4 P.SUPPLY
J2
5 4 3 2 1
RDM
-
12V GND +
POWER SUPPLIES
BACKUP
MAIN
2
3 4 5
6
L/+ N/- L/+ N/-
GROUND
SW2
+
125/220V DC
-
OR 120/230V AC
MAIN POWER
SUPPLY
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