Energy Meter
EM 330
N
1
4
6
5
10 11
12
16
1.
EM 330 requires the following current
transformers based on the amperage limit
and the characteristics of the cabling system.
2. Amperage limit
250 A
400 A
600 A
2
3
8
7
9
13 14 15
17
3. Transformer
CTA 5 X
CTA 6 X
CTD-6S
EM 330
T
10
A-
12
B+
11
GND
13
4. Hole diameter
24 mm
36 mm
50 mm
Wallbox
D- (RS485B)
D+ (RS485A)
GND
5. Number of
Transformers
3
3
3