Current and Voltage Controls
Current Transformer, 1-Phase AC
Type TAD 2, TAD 3
•
Cable/bus-bar type current transformer
•
DIN-rail, bus-bar and panel mounting facility
•
TAD2: 0.5 class, currents from 150 to 300 A
•
TAD3: 0.5 class, currents from 150 to 600 A
TAD2
TAD3
Product Description
Cable/Bus-bar type current
transformer with DIN-rail/bus-
bar and panel mounting faci-
lity. Rated primary currents
from 40 A to 600 A.
Ordering Key
Model
Primary current
Secondary current
TAD2100A 5A
Type Selection
Model
TAD2:
Bus-bar size:
20 x 8 mm
TAD3:
Bus-bar size:
21 x 14 mm,
31 x 11 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
According to IEC 60185
ABS, self-extinguishing:
UL 94 V-0
DIN-rail 46277/bus-bar
and panel mounting (bracket
supplied with the CT)
Screws + washers for
secondary terminals
Brackets for panel mounting
Screws for cable/
bus-bar mounting
Sealable terminal block
cover
1 A secondary current,
double ratio obtained on the
secondary
Tropicalization
Max. 22 mm
20 x 8 mm
21 x 14 mm or
31 x 11 mm
Standard accessories
Extended current rating
Security factor
(FS)
Output Specifications
Rated secondary current
5 A standard
1 A on request
Special features
Cable diameter
Bus-bar size
TAD 2:
TAD 3:
Specifications are subject to change without notice (26.10.99)
1
TAD2, TAD3
Range Table
TAD2:
Rated
Primary
Current
40 A
50 A
60 A
80 A
100 A
150 A
200 A
250 A
300 A
1)
Rated secondary current 1 A/5 A
Class 0.5
1)
Class 1
1)
Class 3
1)
Burden
Burden
Burden
-
-
-
-
-
3 VA
3 VA
5 VA
5 VA
-
-
-
-
3 VA
4 VA
4 VA
8 VA
8 VA
3 VA
3 VA
3 VA
3 VA
4 VA
6 VA
6 VA
10 VA
10 VA
TAD3:
Rated
Primary
Current
100 A
150 A
200 A
250 A
300 A
400 A
500 A
600 A
Rated secondary current 1 A/5 A
Class 0.5
1)
Class 1
1)
Burden
Burden
-
3 VA
3 VA
5 VA
5 VA
6 VA
6 VA
6 VA
3 VA
4 VA
4 VA
8 VA
8 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
44
44
TAD2
TAD3
Wiring Diagram
Output secondary
Standard Accessories
- Sealable plastic cover for
terminal block
- Brackets for panel mount-
ing
L
N
2
Specifications are subject to change without notice (26.10.99)
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