Model Number: ZN85-33 Brand Name: YUFLY Key Specifications/Special Features: 1: Effective Arc-extinguish.2: Long electrical lifetime.3: Maintenance free.4: Safe and reliable operation.5: Sealed spark chamberOperational:1: Fixed type or drawer type2: Phase distance:150/210/275mm Item Unit Data Rated voltage kV 33 Rated current A 630,1000,1250,1600 Rated short circuit breaking current kA 20 Rated short circuit making current kA 50 Rated short time withstand current kA 20 Rated short circuit duration time s 4 Operating type fixed or drawer Phase distance mm 275 Rated operating sequence O-0.3s-CO-180s-CO Mechanical lifetime Times 20000 Rated operation voltage V 220V DC AC