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