SCTxxxx | Current transformers (CT) for energy measurement

By completing the power measurement chain from the sensor to the cloud, PC-based control specialist Beckhoff enables a significant simplification of energy management approaches and improves the availability of machines and production facilities. Permanently integrated and seamless power measurement across entire installations allows users to perform extensive inline analyzes to detect any deviation and take quick corrective action.

 

Starting point of the Beckhoff measurement chain: SCT current transformers

With its SCT current transformers, Beckhoff makes it possible to implement reliable power sensor technology in the field, which is directly integrated into the PC-based control system. Users can select from two device concepts, each with various designs and performance categories that are highly scalable and therefore suitable for any application. The SCT portfolio is extremely broad-based, ranging from low-cost 3-phase CT sets for building technology to standard industrial transformers for machines through to solutions for inspection and test stands with extra-high accuracy requirements.

The choice of the suitable product category depends on the type of use. While ring-type CTs are predestined for cost-effective and accurate data acquisition in new installations, split-core CTs provide the ideal solution for retrofit solutions due to their easy installation.

 

SCT current transformers:

Ordering information  
Mini ring-type CT
SCT1111 Accuracy class 1, primary current 32…64 A, secondary current 1 A, max. diameter round conductor 7.6 mm (size 1)
Ring-type CT
SCT2111 Accuracy class 1, primary current 60…500 A, secondary current 1 A, max diameter round conductor 25.7 mm (size 1)
SCT2121 Accuracy class 0.5, primary current 125…600 A, secondary current 1 A, max diameter round conductor 25.7 mm (size 1)
SCT2211 Accuracy class 1, primary current 600/750 A, secondary current 1 A, max diameter round conductor 31.8 mm (size 2)
SCT2221 Accuracy class 0.5, primary current 600/750 A, secondary current 1 A, max diameter round conductor 31.8 mm (size 2)
SCT2311 Accuracy class 1, primary current 800/1000 A, secondary current 1 A, max diameter round conductor 43.7 mm (size 3)
SCT2321 Accuracy class 0.5, primary current 800/1000 A, secondary current 1 A, max diameter round conductor 43.7 mm (size 3)
SCT2411 Accuracy class 1, primary current 1250/1500, A secondary current 1 A, max diameter round conductor 43.7 mm (size 4)
SCT2421 Accuracy class 0.5, primary current 1250/1500 A, secondary current 1 A, max diameter round conductor 43.7 mm (size 4)
SCT2515 Accuracy class 1, primary current 2000 A, secondary current 5 A, max diameter round conductor 54.7 mm (size 5)
SCT2525 Accuracy class 0.5, primary current 2000 A, secondary current 5 A, max diameter round conductor 54.7 mm (size 5)
SCT2615 Accuracy class 1, primary current 2500 A, secondary current 5 A, max diameter round conductor 70 mm (size 6)
SCT2625 Accuracy class 0.5, primary current 2500 A, secondary current 5 A, max diameter round conductor 70 mm (size 6)
3-phase ring-type CT
SCT3111 Accuracy class 1, primary current 3 x 50…3 x 150 A, secondary current 1 A, max. diameter round conductor 13.5 mm (size 1)
SCT3121 Accuracy class 0.5, primary current 3 x 125…3 x 150 A, secondary current 1 A, max. diameter round conductor 13.5 mm (size 1)
SCT3215 Accuracy class 1, primary current 3 x 100…3 x 250 A, secondary current 5 A, max. diameter round conductor 18 mm (size 2)
SCT3315 Accuracy class 1, primary current 3 x 250…3 x 600 A, secondary current 5 A, max. diameter round conductor 22 mm (size 3)
Split-core CT
SCT6101 Accuracy class 3, primary current 60…150 A, secondary current 1 A, max. diameter round conductor 18.5 mm (size 1)
SCT6311 Accuracy class 1, primary current 200/250 A, secondary current 1 A, max. diameter round conductor 18.5 mm (size 3)
SCT6321 Accuracy class 0.5, primary current 200/250 A, secondary current 1 A, max. diameter round conductor 18.5 mm (size 3)
SCT6411 Accuracy class 1, primary current 300…500 A, secondary current 1 A, max. diameter round conductor 27.9 mm (size 4)
SCT6421 Accuracy class 0.5, primary current 400/500 A, secondary current 1 A, max. diameter round conductor 27.9 mm (size 4)
SCT6615 Accuracy class 1, primary current 600/750 A, secondary current 5 A, max. diameter round conductor 42,4 mm (size 6)
SCT6625 Accuracy class 0.5, primary current 600/750 A, secondary current 5 A, max. diameter round conductor 42,4 mm (size 6)
SCT6715 Accuracy class 1, primary current 800/1000 A, secondary current 5 A, max. diameter round conductor 2 x 42,4 mm (size 7)
SCT6725 Accuracy class 0,5, primary current 800/1000 A, secondary current 5 A, max. diameter round conductor 2 x 42,4 mm (size 7)
Busbar split-core CT
SCT7105 Accuracy class 3, primary current 100/200 A, secondary current 5 A, max diameter round conductor 20 mm (size 1)
SCT7115 Accuracy class 1, primary current 200/450 A, secondary current 5 A, max diameter round conductor 20 mm (size 1)
SCT7125 Accuracy class 0.5, primary current 400 A, secondary current 5 A, max diameter round conductor 20 mm (size 1)
SCT7215 Accuracy class 1, primary current 500/600 A, secondary current 5 A, max diameter round conductor 50 mm (size 2)
SCT7225 Accuracy class 0.5, primary current 500/600 A, secondary current 5 A, max diameter round conductor 50 mm (size 2)
SCT7315 Accuracy class 1, primary current 750…1500 A, secondary current 5 A, max diameter round conductor 80 mm (size 3)
SCT7325 Accuracy class 0.5, primary current 750…1500 A, secondary current 5 A, max diameter round conductor 80 mm (size 3)
SCT7415 Accuracy class 1, primary current 1500…5000 A, secondary current 5 A, max diameter round conductor 80 mm (size 4)
SCT7425 Accuracy class 0.5, primary current 1500/5000 A, secondary current 5 A, max diameter round conductor 80 mm (size 4)
Coil CT
SCT0111 Accuracy class 1, primary current 1…30 A, secondary current 1 A
SCT0121 Accuracy class 0.5, primary current 1…30 A, secondary current 1 A