Low voltage - Bushing type current transformer

Low voltage - Bushing type current transformer, multict CTM7

Mini current transformers of the multict CTM7 series are inductive, according to the transformer principle of working, single-ended current transformers. They are used to adapt the primary measured value to the input nominal values of the connected measuring instruments.
Based on the applied measuring principle, these current transformers are suitable for use in AC networks only.

The multict CTM7 current transformer series is maintenance-free and designed for primary rated currents of 32 A to 64 A with a secondary rated current of 1 A, in accuracy class 1.

Overview:

multict CTM7

Round conductor: 7,6 mm
Width: 27,5 mm

Current range: 32 … 64 A

Highlights

Due to the small current range also suitable for use in data centers
Installation directly on 3-phase circuit breakers possible (Phase center distanced: 17,5 mm)
Quick and easy installation; L1 and L3 transformers are snapped onto the top-hat rail by means of an optional snap-on attachment, L2 transformer is connected to the other two transformer
Secondary rated current of 1 A, in accuracy class 1

Technical data

Working temperature range:	-5 ºC < T < +50 ºC
Storage temperature range:	-25 ºC < T < +70 ºC
Therm. Rated continuous current I_CTH:	1,0 x I_N
Therm. Rated short-time current I_th:	60 x I_N, 1 Sek.
Max. operating voltage U_m:	0,72 kV
Insulation test voltage:	3 kV, U_eff, 50 Hz, 1 Min.
Rate frequency:	50 Hz
Insulation class:	E
Applied technical standards	DIN EN 61869, Teil 1 + 2

Order Table

Order table multict CTM7

Dimensions: Round conductor 7,6 mm ⁄ Structural width 27,5 mm ⁄ Structural height 46,5 mm / Structural depth total 19,0 mm

Item no.	Name	Electrical attributes
Item no.	Name	Primary current	Secondary current	Load	Class
23471	CTM7 32	32 A	1 A	0,2 VA	1
23472	CTM7 35	35 A	1 A	0,2 VA	1
23473	CTM7 40	40 A	1 A	0,3 VA	1
23474	CTM7 50	50 A	1 A	0,4 VA	1
23475	CTM7 60	60 A	1 A	0,4 VA	1
23476	CTM7 64	64 A	1 A	0,5 VA	1