Low Voltage Current Transformers

Flex-Core® manufacturers and stocks a wide range of Low-Voltage Split-Core, Solid-Core and Clamp-On Current Transformers, including Metering Class, Multi-Ratio, Relay Class and Rogowski Coils for most common applications.

If you have a specific application and need a split-core current transformer with a custom ratio, please contact support.

Flexible, Standard Meter Output, Split-Core

MODEL #PRIMARY CURRENTSECONDARY OUTPUTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
FCL0-200A thru 0-6000A1A, 5A, .333V or 1VAmmeters, Control Relays, Sub-MetersRound - 4", 6", 8", 11",or 18"
Rectangle - 2.75" x 6.63" or 4" x 11"

Flexible, Standard Meter Output, Open Circuit Protection, Outdoor, Split-Core

MODEL #PRIMARY CURRENTSECONDARY OUTPUTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
FC0-200A thru 0-6000A1A, 5A, .333V or 1VAmmeters, Control Relays, Sub-MetersRound - 4", 6", 8", 11",or 18"
Rectangle - 2.75" x 6.63" or 4" x 11"

Multi-Ratio, Split-Core

MODEL #PRIMARY CURRENTSECONDARY OUTPUTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
3310-300A thru 0-2000A5AAmmeters, Control Relays, Sub-Meters2.5" x 5.5" or 4.5" x 4.5"

Removable Leg, Split-Core

MODEL #PRIMARY CURRENTSECONDARY OUTPUTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
600

0-400A thru 0-2000A5AAmmeters, Control Relays, Sub-Meters2″ x 5.50″

601
0-400A thru 0-2000A5AAmmeters, Control Relays, Sub-Meters4.50″ x 4.50″
617
0-400A thru 0-1200A5AAmmeters, Control Relays, Sub-Meters2″ x 3.50″
615
0-100A thru 0-400A5AAmmeters, Control Relays, Sub-Meters1.31″ x 1.66″
6160-200A thru 0-800A5AAmmeters, Control Relays, Sub-Meters1.31″ x 2.16″
500T0-300A thru 0-6000A5AAmmeters, Control Relays, Sub-MetersAvailable up to 10″ X 30″

Low Cost, Split-Core

MODEL #PRIMARY CURRENTSECONDARY OUTPUTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
SCT-04000-5A thru 0-75A.333VSub-Meters0.40"
SCT-0750
0-5A thru 0-200A.333VSub-Meters0.75"
SCT-1250
0-70A thru 0-600A.333VSub-Meters1.25"
SCT-2000
0-100A thru 0-1500A.333VSub-Meters2"

Rogowski Coils, Split-Core

MODEL #PRIMARY CURRENTSECONDARY OUTPUTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
ACP
0-30, 0-300, 0-3000A 3VacHandheld Portable Meters7", 10.9" or 14.7"
RCS-18000-250A Thru 0-5000A.333VSub-Meters5.73"
RCT-1800

0-250A Thru 0-5000A.333VSub-Meters5.73"

Low Cost, "Donut" Style, Standard Meter Output, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
2RL0-50 thru 0-400A5AAmmeters, Control Relays, Sub-Meters1.05″
7RL0-300 thru 0-1600A5AAmmeters, Control Relays, Sub-Meters2.50"

Low Cost, Secondary Terminals, Mounting Feet, Standard Meter Output, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
2SFT
0-50 thru 0-400A5AAmmeters, Control Relays, Sub-Meters1.13″
5SFT
0-100 thru 0-600A5AAmmeters, Control Relays, Sub-Meters1.56″

Metal Mounting Bracket, Standard Meter Output, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
58RBL
0-50 thru 0-300A5AAmmeters, Control Relays, Sub-Meters1.25"
7RBL0-400 thru 0-800A5AAmmeters, Control Relays, Sub-Meters2.50"
76RBL0-1000 thru 0-2000A5AAmmeters, Control Relays, Sub-Meters3.00"

Revenue Grade, "Donut" Style, Standard Meter Output, Solid-Core,

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
2DARL0-50 thru 0-300A5ARevenue Meters, Service Meters1.00″
5ARL0-100 thru 0-600A5ARevenue Meters, Service Meters1.56″
180RL0-50 thru 0-1000A5ARevenue Meters, Service Meters2.50″
19RL0-500 thru 0-3000A5ARevenue Meters, Service Meters4.25″

Revenue Grade, Secondary Terminals, Metal Mounting Bracket, Standard Meter Output, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
60RBT0-50 thru 0-200A5ARevenue Meters, Service Meters0.94″

Revenue Grade, Secondary Terminals, Standard Meter Output, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
19SHT
0-500 thru 0-3000A5ARevenue Meters, Service Meters4.25″
19SHTI
0-800 thru 0-3000A5ARevenue Meters, Service Meters4.25″
125
0-1000 thru 0-4000A5ARevenue Meters, Service Meters6.31"
1260-1500 thru 0-5000A5ARevenue Meters, Service Meters8.25"
191
0-100 thru 0-400A5ARevenue Meters, Service Meters1.25"
194
0-400 thru 0-800A5ARevenue Meters, Service Meters2.50"
1950-800 thru 0-2000A5ARevenue Meters, Service Meters3.062″

Revenue Grade, Secondary Terminals, Standard Meter Output, Higher Accuracy, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
125I
0-1600 thru 0-5000A5ARevenue Meters, Service Meters6.31"
126I0-2500A thru 0-5000A5ARevenue Meters, Service Meters8.25"
191I0-200 thru 0-400A5ARevenue Meters, Service Meters1.25"
194I0-300 thru 0-800A5ARevenue Meters, Service Meters2.50"

Revenue Grade, Secondary Terminals, Solid-Core

MODEL #
PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
19SHT-1V0-100 thru 0-800A1VRevenue Meters, Service Meters4.25″
125-1V0-500 thru 0-2000A1VRevenue Meters, Service Meters6.31"
126-1V0-500 thru 0-3000A1VRevenue Meters, Service Meters8.25"

Revenue Grade, Secondary Terminals, Multi-Ratio, Relay Class, Standard Meter Output, Solid-Core

MODEL #
PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
143MR0-50 thru 0-5000A5ARevenue Meters, Service Meters, Protective Relays7.31″

Revenue Grade, Secondary Terminals, Standard Meter Output, Primary Bar, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
JAK-0C

0-100 thru 0-2000A5ARevenue Meters, Service Meters1.50" up to 3.62"
CTM-0C
0-5 thru 0-1200A5ARevenue Meters, Service MetersWound Primary

Revenue Grade, Secondary Terminals, Standard Meter Output, Relay Class, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
110

0-200 thru 0-3000A5ARevenue Meters, Service Meters, Protective Relays4.00"

114
0-50 thru 0-1600A5ARevenue Meters, Service Meters, Protective Relays3.25"
130
0-200 thru 0-4000A5ARevenue Meters, Service Meters, Protective Relays5.75″
143
0-50 thru 0-6000A5ARevenue Meters, Service Meters, Protective Relays7.31″

Revenue Grade, Secondary Terminals, Standard Meter Output, Relay Class, Switchgear Style, Multi-Ratio, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
781MR
0-50 thru 0-4000A5ARevenue Meters, Service Meters, Protective Relays6.50″


Revenue Grade, Secondary Terminals, Standard Meter Output, Relay Class, Large Window, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
147
0-2000 thru 0-10000A5ARevenue Meters, Service Meters, Protective Relays10.00″

Low Ratio, Secondary Terminals, Standard meter output, Wound Primary, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
189
0-2.5 thru 0-100A5ARevenue Meters, Service Meters, Wound Primary

Revenue Grade, Low Ratio, Secondary Terminals, Standard Meter Output, Wound Primary, Solid-Core

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
190X
0-0.1 thru 0-15A1A, 5A, 10ARevenue Meters, Service Meters, Wound Primary

190XSUM0-5 plus 0-5A5ARevenue Meters, Service Meters, Wound Primary

AC, Micro-Clamp

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
M1
0-1A thru 0-200A1V, 2V, 5V, 1A, 0.1A or 0.2APortable Current Monitoring3.8″ x 1.69″ x 0.9″
M20-25A thru 0-200A1V, 2V or 1VPortable Current Monitoring4.5″ x 1.69″ x 0.9″

AC, Clamp-On

MODEL #PRIMARY CURRENTSECONDARY CURRENTTYPICAL APPLICATIONINSIDE DIAMETER (inches) 
NS
0-100A thru 0-1000A1V, 5V, 1A or 5APortable Current Monitoring8.1″ x 3.5″ x 1.6″
H320-1000A thru 0-3000A1V, 2V, 3V, 5V, 1A, 2A, 3A or 5APortable Current Monitoring5.2″ x 13.11″ x 2.05″
P320-1000A thru 0-3000A1V, 2V, 3V, 5V, 1A, 2A, 3A or 5APortable Current Monitoring5.83″ x 13.11″ x 2.05″