Schneider Electric METSECT5CC004 PowerLogic CT 40/5 A Class 3 21 mm Window Current Transformer

The Schneider Electric METSECT5CC004 is a PowerLogic solid-core current transformer tropicalised for cable mounting, with a 40/5 A current ratio and a 21 mm cable window. It is rated Class 3 accuracy (Class 3 at 1 VA) with a 2.4 kA thermal withstand current, suitable for metering and protection-relay current inputs on DIN rail or mounting-plate panels.

Technical Specifications

Certifications & Standards

• CE
• VDE 0414
• IEC 61869-2

Selection Notes

Accuracy class sets the use case: this unit is supplied without a Class 0.5 tap, so it is suited to panel indication (Class 1) and protection-relay feeds (Class 3) rather than billing-grade metering. The 2.4 kA thermal withstand current scales with the 40 A rating, so moving to a higher-current sibling in the CC series also raises the short-circuit withstand available at the metering point — pick the ratio that matches the actual line current rather than the breaker frame size, since oversizing a CT ratio reduces measurement resolution at normal load.