Accessories
Current Transformer, 1-Phase AC
Type TAD 8, TAD 12
•
•
•
•
Cable/bus-bar type current transformer
Direct mounting on bus-bar
TAD8: class 0.5, currents from 400 to 2500 A
TAD12: class 0.5, currents from 800 to 4000 A
TAD 8
TAD 12
Product Description
Cable/bus-bar type current
transformer for direct mount-
ing. Rated primary currents
from 400 A to 4000 A.
Ordering Key
Model
Primary current
Secondary current
TAD8 600A 5A
Type Selection
Model
TAD8:
Bus-bar size:
82 x 32 mm or
65 x 34 mm
TAD12:
Bus-bar size:
127 x 51 mm or
102 x 53 mm
Primary Current
Refer to Range Table
Input Specifications
Operating frequency
Max. system voltage
Rated insulation level
Short-time current rating
I
th
I
dyn
40 to 60 Hz
0.72 kV
3 kV/1 min. @ 50 Hz
Typical 100 I
n
/1 s
2.5 I
th
The short-time thermal cur-
rent I
th
is anyway limited by
the cable/bus-bar size
120%
≤
5
General Specifications
Standards
Housing
Mounting
Standard accessories
According to IEC 60185
Self-extinguishing thermo-
plastic insulated housing
Direct mounting on bus-bar
Double FAST-ON for
secondary terminals
Small bars for bus-bar
mounting
1 A secondary current
Sealable terminal cover
Double ratio obtained on
the secondary
Tropicalization
82 x 32 mm or
65 x 34 mm
127 x 51 mm or
102 x 53 mm
Special features
Extended current rating
Security factor
(FS)
Output Specifications
Rated secondary current
5 A standard
1 A on request
Bus-bar size
TAD 8:
TAD 12:
Specifications are subject to change without notice
1
TAD 8, TAD 12
Range Table
TAD 8:
Rated
Primary
Current
400 A
500 A
600 A
800 A
1000 A
1200 A
1500 A
2000 A
2500 A
1)
Rated secondary current 1 A/5 A
Class 0.5
1)
Class 1
1)
Class 5P10
Burden
Burden
Burden
4 VA
6 VA
10 VA
15 VA
20 VA
30 VA
40 VA
50 VA
60 VA
8 VA
12 VA
20 VA
30 VA
40 VA
50 VA
60 VA
80 VA
100 VA
5 VA
5 VA
5 VA
5 VA
5 VA
5 VA
5 VA
5 VA
5 VA
TAD 12:
Rated
Primary
Current
800 A
1000 A
1200 A
1500 A
2000 A
2500 A
3000 A
4000 A
Rated secondary current 1 A/5 A
Class 0.5
1)
Class 1
1)
Class 5P10
Burden
Burden
Burden
15 VA
20 VA
30 VA
40 VA
50 VA
60 VA
80 VA
100 VA
30 VA
40 VA
60 VA
80 VA
100 VA
120 VA
160 VA
200 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
The accuracy class is depending on the burden output. For the same rated primary current, the higher the burden the lower
the class (class down-grade).
Dimensions (mm)
TAD 8
TAD 12
Wiring Diagram
Output (Secondary)
L
N
2
Specifications are subject to change without notice