The CT19 series spring operating mechanism is designed for operating various types of indoor high-voltage vacuum circuit breakers of the ZN28 series with breaking currents of 20kA, 31.5kA, and 40kA, or other types of vacuum circuit breakers with equivalent closing power.
Our company produces two main types of CT19 mechanisms: for fixed cabinets (CT19B) and for withdrawable switchgear (CT19A). The CT19B model is an improved and miniaturized version based on the CT19A, offering more stable and reliable mechanical performance.
The mechanism features two energy storage methods for the closing spring: motor storage and manual storage. The opening operations include four types: opening solenoid, overcurrent release solenoid, manual button, and undervoltage release solenoid.