Schneider Electric SE30NCT Current Transformer

The Schneider Electric SE30NCT Neutral Current Transformer is an external CT sensor designed to integrate with Square D/Micrologic circuit breakers to monitor neutral current. It is offered in multiple primary sensor ratings for SE/SEH breakers, including 1600, 2000, 2500, and 3000 A, so the CT can match the breaker's main current path. This Micrologic-compatible NCT is part of Square D's current-transformer accessories and is listed for use with SE and SEH series breakers that feature Micrologic trip units. Catalog literature identifies SE30NCT as the neutral current transformer sensor for SE/SEH breakers, ensuring proper compatibility and wiring within the protection scheme.