ZW32-12 Outdoor Vacuum Circuit Breaker

Selection

Operating conditions

1. The environment temperature: upper limit +40℃, lower limit -30℃ 2. Altitude ≤ 2000 meters 3. Wind pressure: no more than 700Pa (corresponding to the wind speed 34m/s) 4. Earthquake intensity: do not exceed 8 degree 5. Pollution grade: III class 6. Maximum daily temperature: less than 25℃ .

Technical data

Item		Unit	Parameter
Voltage, current parameters
Rated voltage		kV	12
Rated short time power frequency withstand voltage (1min)		kV	42/48
Rated lightning impulse withstand voltage (peak)		kV	75/85
Rated frequency		Hz	50/60
Rated current		A	630	1250
Rated short-circuit breaking current		kA	20
Rated short-time withstand current (RMS)		kA	20
Rated peak withstand current		kA	50
Rated short-circuit closing current		kA	50
Rated single / back-to-back capacitor bank breaking current		A	630/400
Rated short-circuit current duration		S	4
Rated short-circuit current breaking times		Times	50
The main circuit resistance		μΩ	≤80(140)
Rated operational voltage			AC/DC≌220
Mechanical life		Times	10000
The overcurrent regulating ☆		A	1~10
Quick-break current ☆		A	6~20
The delay time ☆		ms	40~850
Remote control distance ☆		m	> 30
Reclose time ☆		Times	0~3
Rated operating sequence ☆			O-0.3s-CO-180s-CO
CT ※	Ratio	A	()/5
	Capacity	VA	15
The output voltage ※		A	AC220
The output capacity ※		W	600
The overcurrent regulating ※		A	1~10
The delay time ※		ms	40~850
Remote control distance ※		m	30

Note: the one not marked above is basic technical parameters; marked☆ is intelligent technology parameter; marked ※ is the electronic PT type technical parameters.

Overall and mounting dimensions(mm)

1. operating handle 2. spindle of solation 3. circuit breaker manual on-off handle 4. circuit breaker energy storage handle 5. on-off instructions 6. connection plug 7. current transformer 8. insulator 9. Isolation frame 10. insulated tension pole