SCT / SCT-T
SCT Clamp Split Core Current Transformer
Maximum continuous primary current 5 A to 120 A
Secondary turns 3000, or per customer datasheet
- Home
- Industries
- Energy And Sub Metering
Industry Pain Points
- Adding a meter to an existing circuit means an outage nobody will authorise
- The logger expects 333 mV and the CT on the shelf is 5 A
- Billing disputes when the CT class does not hold at low load
- DC circuits cannot be measured with a current transformer at all
What Customers Need
- Split core and clamp on bodies that fit around a cable already in service
- Output chosen to match the meter: 5 A, 1 A, mA, 333 mV or 0-5 V
- Class 0.2S where the reading is billed
- A calibrated shunt for the DC side of the same installation
Typical Scenarios
How The Range Is Used
Tenant sub metering in an occupied building
SCT clip on frames sized to the cable, 333 mV output into the logger, fitted circuit by circuit without a shutdown.
Meter manufacturer volume supply
Pin type PCB mount cores in Class 0.1 soldered onto the meter board, with the turns ratio and lead length built to your drawing.
Solar and battery installations
AC split cores on the inverter output and a DIN 43703 shunt on the DC string, with the millivolt drop matched to the monitoring input.
Recommended Products
Frames For This Industry
HK
HK Split Core Current Transformer
Primary current 5 A to 5000 A
Design One button clamp on, open type
JW
Clamp On Current Transformer
Measurement range 1 mA to 1200 A AC
Ratio 1000:1 or 2000:1 (customised)
ABO
ABO Current Transformer
Primary current 5 A to 5000 A
Secondary current 5 A, 1 A, 0.5 A, 0.25 A, 0.1 A
FAQ
Questions Buyers Ask
Which output do energy loggers usually want?
333 mV is the most common for modern loggers and BMS inputs; 1 A and 5 A remain standard for panel instruments; mA outputs suit PCB and transducer inputs.
Is a split core accurate enough for billing?
For billing, specify a solid core in Class 0.5S or 0.2S. Split cores have a mating face in the magnetic circuit and are normally used for monitoring and sub metering rather than revenue.
Can you match a CT to a meter I already use?
Send the meter model and the input specification and an engineer will confirm the ratio, output and burden.
Send Your Specification
Tell us the application and the ratings. An engineer replies with the frame, the class and the price.