Fig. 6 Sct3Xxx - Beckhoff SCT Series Documentation

Product overview
3-phase ring-type current transformers
Fig. 6: SCT3xxx
The compact SCT3xxx 3-phase ring-type current transformers for direct mounting under commonly used
power switches measure primary currents from 3 x 50 to 3 x 600 A, with secondary currents of 1 or 5 A. The
whole of the SCT3xxx series is available in accuracy class 1 and is supplemented by the SCT3121-0125 and
SCT3121-0150 current transformers in accuracy class 0.5.
3-phase ring-type current transformers
Accuracy class 1,
SCT3111 [} 40]
primary current 3 x 50...3 x 150 A,
secondary current 1 A,
max. diameter round conductor 13.5 mm (size 1)
Accuracy class 0.5,
SCT3121 [} 40]
primary current 3 x 125 / 3 x 150 A,
secondary current 1 A,
max. diameter round conductor 13.5 mm (size 1)
Accuracy class 1,
SCT3215 [} 41]
primary current 3 x 100...3 x 250 A,
secondary current 5 A,
max. diameter round conductor 18 mm (size 2)
Accuracy class 1,
SCT3315 [} 44]
primary current 3 x 250...3 x 600 A,
secondary current 5 A,
max. diameter round conductor 22 mm (size 3)
14 Version: 1.1 SCTxxxx