CTS24 – Opening-type current transformer for Cable from 100 to 300A

Open-core current transformer, closed by lateral clips. It is suitable for measuring current in single-phase cables up to 20 mm in diameter. The range covers a range of primary currents, from 100A to 300A AC. They are available in accuracy classes from 1.0 to 3.0.

Round cable (mm): 20
Conductor type: Single-phase
Magnetic core type: Openable
Primary current: 100 A to 300A
Secondary current: 5A (1A on request)
Class 3.0 or 1.0 depending on the size
Power (VA): 1.0 to 1.5 VA

Technical Specifications

Transformation ratio

From 100A to 300A

Nominal Power

Up to 5VA

Accuracy Class

Class 1.0, Class 3.0 or Class 5.0 depending on the size

Secondary

1m cable, 2 wires black/red for connection to the measuring device

Box

ABS . Self-extinguishing

Mounting

On cable

Operating ambient temperature

-25 C ~ +85 C

Primary conductor

24×24 (Ø24)

Number of inputs

1 input

Short-time thermal current

Ith = 60 * In

Continuous thermal current

Id=1 * In

Nominal frequency

50Hz … 60Hz

Overvoltage current limiting factor

FS 5

Test voltage

3kV 1min

Maximum system voltage

0.72kV

Applicable Standards

IEC 60044-1
IEC 61869-2
VDE 0414-1
DIN57414
BS3938
BS7626
EN 61869-2

Diagrams and Dimensions

Reference Tables

Opening (mm)	Series	Ratio (A)	Accuracy Class	Power (VA)
24 x 24	CTS24-100/5	100/5A	3	1
	CTS24-150/5	150/5A	3	1.5
	CTS24-200/5	200/5A	3	1.5
	CTS24-250/5	250/5A	1	1
	CTS24-300/5	300/5A	1	1