The 1SDA062898R1 is a shunt trip release accessory engineered for ABB Tmax XT series molded case circuit breakers. This electromechanical accessory receives external electrical trip signals to remotely open the circuit breaker. It enables remote load switching, emergency shutdown logic and automatic tripping triggered by fire alarm systems, protection relays or building safety controllers. Once energised, the unit instantly activates the breaker’s opening mechanism to isolate power circuits. Maintenance technicians utilise this spare component to replace faulty trip accessories inside motor control centres and power distribution panels, preserving remote emergency switching capabilities for critical low-voltage distribution systems.

Application Scenarios

• Industrial Low Voltage MCC Rooms: Fitted to Tmax XT feeders for emergency remote isolation of process motors and equipment. Supports safety interlock shutdown sequences during abnormal operational conditions.
• Commercial Buildings & Data Centers: Enables remote tripping for fire safety systems. Fire alarm control panels send signals to cut non-essential power to limit fire spread risks.
• Water & Wastewater Treatment Plants: Provides remote isolation for pump and blower feeder circuits. Operators can safely disconnect equipment from central control rooms without local access.
• Petrochemical Plant Distribution Panels: Integrates with plant safety systems. Fast remote tripping supports emergency isolation requirements in compliance with site safety regulations.