Schneider Electric METSECT5CC015 PowerLogic CT 150/5 A Class 0.5 21 mm Window Current Transformer

The Schneider Electric METSECT5CC015 is a PowerLogic solid-core current transformer tropicalised for cable mounting, with a 150/5 A current ratio and a 21 mm cable window. It is rated Class 0.5 accuracy (Class 0.5 at 3 VA, Class 1 at 4 VA, Class 3 at 5 VA) with a 9 kA thermal withstand current, suitable for metering and protection-relay current inputs on DIN rail or mounting-plate panels.

Technical Specifications

Certifications & Standards

• CE
• EAC
• IEC 61869-2
• VDE 0414

Selection Notes

Accuracy class sets the use case: this unit's Class 0.5 tap supports revenue-grade or sub-billing metering, while its Class 1 and Class 3 taps on the same core cover panel indication and protection-relay feeds respectively. The 9 kA thermal withstand current scales with the 150 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.