ABB YO-1SDA038290R1 Shunt Opening Release Coil is a dedicated 110–120 V coil designed to energize the shunt opening release in ABB equipment. The unit accepts a 110–120 V supply (AC or DC) and uses an E1/6-T8 mounting footprint, with the part number identifying it as 1SDA038290R1. As a Shunt Opening Release, this coil is used to trigger the breaker’s opening sequence when energized, enabling remote or automated protection schemes in ABB installations.
