The ABB 1SDA013783R1 Shunt Opening Release is a shunt-release accessory for ABB S3–S5 series circuit breakers, enabling remote opening when the shunt coil is energized. It is available in 3-pole and 4-pole configurations and supports coil voltages of 110 V AC (CA) or 110–125 V DC (CC). The part number 1SDA013783R1 specifically identifies the 110 V variants of the shunt opening release. Used in industrial protection schemes, this release provides fast, remote opening of the breaker to meet safety and control requirements.
