Current Transformers

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Part	Manufacturer	Transformer Type	Mounting Feature	Manufacturer Series	Approvals (V)	Type (Primary)	Window Dimension	Isolation Voltage	Packing Method	Accuracy Class	Current Rating Ip:Is (A)	Dimensions	Maximum Operating Temperature	Minimum Operating Temperature	Nominal Operating Frequency	Height	Width	Diameter	Nominal Input Voltage (V)	Maximum Secondary Burden	Minimum Operating Frequency	Length	Maximum Operating Frequency
1SVR450116R1200	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX		100:1					78.5 mm	48 mm			2.5 VA		61 mm
1SVR450117R1300	Abb	CURRENT SENSE TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX		500:1					78.5 mm	48 mm			5 VA		61 mm
1SVR450117R5100	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX		300:5					78.5 mm	48 mm			5 VA		61 mm
2277019	Phoenix Contact	CURRENT TRANSFORMER	DIN RAIL MOUNT		UL	BAR PRIMARY	D21XH30 m	1000 V		1		L44.0XB30.0XH66.0 (mm)	40 Cel	-25 Cel		66 mm	30 mm					44 mm
1SVR450117R1100	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX	1	300:1					78.5 mm	48 mm			5 VA		61 mm
1SVR450116R5400	Abb	CURRENT TRANSFORMER	STUD MOUNT		IEC	BAR PRIMARY			BOX		200:5					78.5 mm	48 mm			5 VA		61 mm
1SVR450117R1400	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX		600:1					78.5 mm	48 mm			5 VA		61 mm
1SVR450116R5200	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX		100:5					78.5 mm	48 mm			2.5 VA		61 mm
1SVR450116R1100	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX	1	75:1					78.5 mm	48 mm			1.5 VA		61 mm
CSE187-L	Magnetek	CURRENT TRANSFORMER
1SVR450117R5400	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX	1	600:5					78.5 mm	48 mm			5 VA		61 mm
1SVR450116R5300	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX		150:5					78.5 mm	48 mm			2.5 VA		61 mm
2277064	Phoenix Contact	CURRENT TRANSFORMER	DIN RAIL MOUNT		UL	BAR PRIMARY	D28XH15 m	1000 V		1		L60.0XB30.0XH80.0 (mm)	40 Cel	-25 Cel		80 mm	30 mm					60 mm
1SVR450116R1400	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC	BAR PRIMARY			BOX	1	200:1					78.5 mm	48 mm			2.5 VA		61 mm
5353	Api Technologies	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED			BAR PRIMARY	D9.5XH14.2(mm)									31.75 mm	14.224 mm		2.13		.05 KHz	31.75 mm	100 KHz
6SHT-152	TE Connectivity	CURRENT TRANSFORMER	STUD MOUNT		CSA; CUL; UL	BAR PRIMARY	D2.06(inch)	600 V		1	1500:5				60 HZ	27.94 mm	103.632 mm			50 VA	.05 KHz	107.188 mm	.4 KHz
AC1020	Nuvotem Talema	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED			BAR PRIMARY	D9.5XH11.12 (mm)					L23.8XB11.12XH23.8 (mm)			50/60 HZ	23.8 mm	11.12 mm					23.8 mm
AC1005	Nuvotem Talema	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED			BAR PRIMARY	D9.5XH11.12 (mm)					L23.8XB11.12XH23.8 (mm)			50/60 HZ	23.8 mm	11.12 mm					23.8 mm
142-501	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT			WOUND PRIMARY	D7.25XHN/S (inch)	600 V			500:5										.05 KHz		.4 KHz
6SHT-151	TE Connectivity	CURRENT TRANSFORMER	STUD MOUNT		CSA; CUL; UL	BAR PRIMARY	D2.06(inch)	600 V		1	150:5				60 HZ	27.94 mm	103.632 mm			5 VA	.05 KHz	107.188 mm	.4 KHz
606-201	Cr Magnetics	CURRENT TRANSFORMER
AC1010	Nuvotem Talema	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED			BAR PRIMARY	D9.5XH11.12 (mm)								50/60 HZ	23.8 mm	11.12 mm					23.8 mm
A82-20100	Carlo Gavazzi Holding Ag	CURRENT TRANSFORMER	CHASSIS MOUNT			BAR PRIMARY	D1.06 (inch)	1000 V					50 Cel	-20 Cel		67.5 mm	20 mm				.04 KHz	95 mm	1 KHz
606-601	Cr Magnetics	CURRENT TRANSFORMER
AC1050	Nuvotem Talema	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED			BAR PRIMARY	D14.6XH14.3 (mm)								50/60 HZ	34.9 mm	14.3 mm					34.9 mm
CR8420-1000-G	Cr Magnetics	CURRENT TRANSFORMER	CHASSIS MOUNT		CE; CUL; UL	BAR PRIMARY	D15XH9.2 (mm)	3500 V								36 mm	9.2 mm				.02 KHz	30 mm	1 KHz
130-102	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT		UL; CSA	WOUND PRIMARY	D5.75 i	600 V			1000:5	L215.9XB73.66XH215.9 (mm)				215.9 mm	73.66 mm			.3 VA	.05 KHz	215.9 mm	.4 KHz
T60404-E4622-X503	Vacuumschmelze & Kg	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED	T60404		BAR PRIMARY				1	2000:1	6.3mm x 11.5mm			50 HZ	11.5 mm		6.3 mm
2SHT-750	TE Connectivity	CURRENT TRANSFORMER	STUD MOUNT		CSA; CUL; UL	BAR PRIMARY	D1.13(inch)	600 V		3	75:5				60 HZ	24.13 mm	60.96 mm			2 VA	.05 KHz	68.834 mm	.4 KHz
6SHT-751	TE Connectivity	CURRENT TRANSFORMER	STUD MOUNT		CSA; CUL; UL	BAR PRIMARY	D2.06(inch)	600 V		1	750:5				60 HZ	27.94 mm	103.632 mm			25 VA	.05 KHz	107.188 mm	.4 KHz
MR-2	KEMET Corporation	CURRENT TRANSFORMER	CHASSIS MOUNT			BAR PRIMARY	D8.9XH8.3 (mm)		TRAY				80 Cel	-20 Cel		8.3 mm	21.8 mm					24.7 mm
7SHT-751	TE Connectivity	CURRENT TRANSFORMER	STUD MOUNT		CSA; CUL; UL	BAR PRIMARY	D2.5(inch)	600 V		1	750:5				60 HZ	123.19 mm	27.94 mm			30 VA	.05 KHz	115.824 mm	.4 KHz
ACX-1100	Nuvotem Talema	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED		UL	BAR PRIMARY	D14.6X14.3 (mm)			1			85 Cel	-40 Cel	50/60 HZ	34.9 mm	14.3 mm			.125 VA		34.9 mm
ATO-100-B333-D16	Lem International Sa	CURRENT TRANSFORMER	CHASSIS MOUNT		CE; CUL; UL	BAR PRIMARY	D16XH25.8 (mm)	4300 V		1			55 Cel	-10 Cel	50/60 HZ	56.1 mm	33.2 mm				1.5 KHz	40.8 mm
ATO-15-B225-D10	Lem International Sa	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC; UL	BAR PRIMARY	D10XH24 (mm)	4300 V		1			55 Cel	-10 Cel	50/60 HZ	45.5 mm	32 mm				1.5 KHz	33.5 mm
ATO-30-B333-D10	Lem International Sa	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC; UL	BAR PRIMARY	D10XH24 (mm)	4300 V		1			55 Cel	-10 Cel	50/60 HZ	45.5 mm	32 mm				1.5 KHz	33.5 mm
ATO-32-B225-D10	Lem International Sa	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC; UL	BAR PRIMARY	D10XH24 (mm)	4300 V		1			55 Cel	-10 Cel	50/60 HZ	45.5 mm	32 mm				1.5 KHz	33.5 mm
ATO-50-B225-D10	Lem International Sa	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC; UL	BAR PRIMARY	D10XH24 (mm)	4300 V		1			55 Cel	-10 Cel	50/60 HZ	45.5 mm	32 mm				1.5 KHz	33.5 mm
ATO-50-B333-D10	Lem International Sa	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC; UL	BAR PRIMARY	D10XH24 (mm)	4300 V		1			55 Cel	-10 Cel	50/60 HZ	45.5 mm	32 mm				1.5 KHz	33.5 mm
ATO-60-B333-D10	Lem International Sa	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC; UL	BAR PRIMARY	D10XH24 (mm)	4300 V		1			55 Cel	-10 Cel	50/60 HZ	45.5 mm	32 mm				1.5 KHz	33.5 mm
CT-05-100	KEMET Corporation	CURRENT TRANSFORMER	CHASSIS MOUNT			BAR PRIMARY	D5.5XH10 (mm)		TRAY				80 Cel	-20 Cel		10 mm	17.5 mm					17.5 mm
CT200	Littelfuse	CURRENT SENSE TRANSFORMER	CHASSIS MOUNT		CSA	BAR PRIMARY	D57 m			2					50/60 HZ	108 mm	44.5 mm					98.3 mm
142-252	Abb	CURRENT TRANSFORMER	CHASSIS MOUNT			WOUND PRIMARY	D7.25XHN/S (inch)	600 V			2500:5										.05 KHz		.4 KHz
17644	Ohio Semitronics	CURRENT TRANSFORMER	CHASSIS MOUNT		EN	BAR PRIMARY	D6.5 (inch)						80 Cel	-20 Cel					1000		.008 KHz		200 KHz
5354	Api Technologies	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED			BAR PRIMARY	D9.5XH14.2(mm)									31.75 mm	14.224 mm		2.89		.05 KHz	31.75 mm	100 KHz
ACX-1050	Nuvotem Talema	CURRENT TRANSFORMER	THROUGH HOLE MOUNTED		UL	BAR PRIMARY	D9.5XH11.12 (mm)			1			85 Cel	-40 Cel	50/60 HZ	23.8 mm	11.12 mm			.125 VA		23.8 mm
ATO-20-B225-D10	Lem International Sa	CURRENT TRANSFORMER	CHASSIS MOUNT		IEC; UL	BAR PRIMARY	D10XH24 (mm)	4300 V		1			55 Cel	-10 Cel	50/60 HZ	45.5 mm	32 mm				1.5 KHz	33.5 mm
T60404-E4626-X002	Vacuumschmelze & Kg	CURRENT TRANSFORMER	CHASSIS MOUNT			BAR PRIMARY	D9.5XH15 (mm)						85 Cel	-40 Cel		15 mm	34 mm					35 mm

Current Transformers (CTs) are electrical devices that are used to measure electrical current in power transmission systems. They are also known as instrument transformers, because they transform the high currents found in power lines into lower currents that can be safely measured by instruments.

The basic principle of a CT is to use the magnetic field generated by the current flowing through a conductor to induce a current in a secondary winding, which is connected to a measuring instrument or a protective relay. The current in the secondary winding is proportional to the primary current, and is typically a lower value, such as 1A or 5A, which is easier to measure.

CTs are typically used in high voltage and high power systems, such as power plants, substations, and industrial facilities, to measure the current flowing through transmission lines, generators, motors, and other equipment. They are also used for protection purposes, such as detecting overcurrents and faults in the system, and triggering circuit breakers to isolate faulty equipment.

CTs come in various shapes and sizes, and are designed for specific current ratings and frequency ranges. They are typically installed around the conductor that carries the current, and connected to the measuring or protective device through insulated leads. Proper installation and maintenance of CTs are critical to ensure accurate and reliable measurements and protection of the system.