Item Name: ZW8-12 series Outdoor Vacuum Circuit Breaker

The ZW8-12 series outdoor HV vacuum automatic circuit reclosers(short for brea) be used for switching on/off load current, overload current and short circuit current in three-phase power systms with AC 50Hz and rated voltage 12KV. Matching with recloser controllers, the breaker can identify current characteristic and realize repetitious autoeclosing or permanent fault isolation. With its own PT power, it becomes an intelligence breaker having controlled voltage and current signal output. With electric PT Power, It povides three segment compound protection of over current time delay, rush current time delay and short circuit quick break.

Item			Unit	Data
Rated Voltage			kV	12
Rated Current			A	630, 1000, 1250
Rated Frequency			Hz	50
Rated insulating level	1min power frequency withstand voltage	Dry	kV	42
		Wet		34
	Lightning impluse withstand voltage(peak)			75
Rated short-circuit breaking current			kA	12.5, 16, 20
Breaking times of rated short-circuit breaking current			time	30.31.5, 50
Rated short-circuit making current(peak)			kA	31.5, 40, 50
Rated peak withstand current			kA
Rated short-time withstand current			kA	12.5, 16, 20
Rated short-circuit current duration			s	4
Rated operating order				O-0.3S-CO-180S-CO
Mechanical life			time	10000
Rated operating voltage			V	AC/DC220
Over current trip rated current			A	5
Weight			KG	160

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