Specifications are subject to change without notice SCT74/30 DS 0703 1
•Split-core current transformer
•Cable/bus-bar type current transformer
•5A (1A on request) secondary current
•Screws and nuts for busbar mounting
Product Description
Model
Primary current
Secondary current
Accuracy class
Ordering Key
These split core current
transformers can be used for
currents from 100A to 400A.
The current transformers are
made according to BS3938,
EN60044-1 and DIN42600
standards.
Accessories
Split-core Current Transformer, 1-Phase AC
Type SCT74/30
Type Selection
Primary Current
Refer to Range Table
Model SCT7430
Bus-bar size: 31 x 26 mm
Rated secondary current 5 A standard
1 A (on request)
Output Specifications
Input Specifications
Operating frequency 50 to 60 Hz
Max. system voltage 0.72 kV
Rated insulation level 4kVRMS, 50Hz, 1 min
Short-time current rating
Ith 60 In
Idyn 2.5 x Ith
Extended current rating 120%
Security factor (FS) 5, 10
Insulation class E (MAX 120°C)
Protection IP00
Working temperature range -20 to 45°C
Storage temperature -50 to 80°C
Standards According to BS3938,
EN60044-1 and DIN42600
Connection The secondary terminals
have two connections on
each side. Connection with
M4 (M5) screws easy to
handle and securing low
contact resistance.
Housing ABS, self-extinguishing:
UL 94 V-0
Mounting DIN-rail/bus-bar
and panel mounting (bracket
supplied with the CT)
Standard accessories Screw and nut for busbar
mounting
Accesories on request Clip, for DIN EN50022 rail
Special features The terminal cover is fitted
for a lead seal.
This execution complies with
the VGB4 protection of
DIN57106 standard.
Cable diameter Max. 26 mm
Bus-bar size 31 x 26 mm
General Specifications
SCT7430 2005A C1
Secondary current
5A
1A (on request)
Accuracy class
1 ... 3 (see table)
0.5 (on request)
2Specifications are subject to change without notice SCT74/30 DS 0703
Dimensions (mm)
Wiring Diagram
Range Table
Rated Rated secondary current 5 A (1 A on request)
Primary Class 1 Class 3 Class 0.5 (*)
Current Burden Burden Burden
100 A - 1.5 VA -
125 A 1.5 VA - -
150 A - 2.5 VA -
200 A 1.5 VA 5 VA -
250 A 1.5 VA 5 VA -
300 A 1.5 VA 7.5 VA -
400 A 5 VA 10 VA 1.5 VA
* On request
SCT74/30
Output secondary
L
N
Standard and optional Accessories
Screws and nuts for
busbar mounting (stan-
dard) and clip for DIN
EN50022 rail mounting
(on request).
