The Westinghouse 68-E-3099 Trip Unit (MPN 68-E-3099) is a 125 A industrial electrical protection device designed for use with circuit breakers and switchgear in industrial power distribution systems. As an AB Trip Time Limit unit, it provides overcurrent protection and precise breaker trip control, and is designed for breaker or switchgear mounting in manufacturing and commercial facilities. For maintenance, retrofit, or replacement projects, it is commonly used in switchgear assemblies and industrial protection circuits, with common replacements from Eaton, Siemens, and Square D available for compatible systems.
