Current and Voltage Controls
Current Transformer, 1-Phase AC
Type TADK, TADK 2
•
Dry-type wound primary current transformer
•
For low primary currents (TADK)
•
For DIN-rail and panel mounting
•
TADK2: Class 0.5, currents from 1 to 40 A
•
TADK: Class 0.5, currents from 1 to 250 A
TADK
TADK2
Product Description
Dry-type wound primary cur-
rent transformer with DIN-rail
and panel mounting facility.
Rated primary currents from
1 A to 250 A.
Ordering Key
Model
Primary current
Secondary current
TADK 40A 5A
Type Selection
Model
TADK:
TADK2:
For low primary
currents
Standard
Primary current
Refer to Range Table
Input Specifications
Operating frequency
Max. system voltage
Rated insulation level
Short-time current rating
I
th
I
dyn
Extended current rating
Security factor
(FS)
40 to 60 Hz
0.72 kV
3 kV / 1 min. @ 50 Hz
60 I
n
/ 1 s
2.5 I
th
120%
≤
5
General Specifications
Standards
Housing
Mounting
According to IEC 60185,
ABS, self-extinguishing:
UL 94 V-0
DIN-rail 46277 and panel
mounting (by means of
brackets supplied with the CT)
Screws + washers for
primary and secondary ter-
minals
Brackets for panel mounting
Sealable terminal block
cover
1 A secondary current
Double ratio obtained on the
secondary
Tropicalization
Standard accessories
Output Specifications
Rated secondary current
5 A - standard
1 A - on request
Special features
Specifications are subject to change without notice (26.10.99)
1
TADK, TADK2
Range Table
Rated
Primary
Current
1A
5A
10 A
15 A
25 A
40 A
50 A
60 A
80 A
100 A
150 A
200 A
250 A
Bus-bar
(mm)
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
25 x 5
Rated secondary current 1 A/5 A
TADK:
TADK2:
Class
Burden
Class
0.5
0.5
0.5
0.5
0.5
0.5
-
-
-
-
-
-
-
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
-
-
-
-
-
-
-
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
Burden
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
10 VA
Dimensions
44
44
TADK
TADK2
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)
