China ZW32Y-12 Manufacture and Factory

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ZW32Y-12

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ZW32Y-12

1. Overload protection
2. Short circuit protection
3. Controlling
4. Used in residential building, non-residential building, energy source industry and infrastructure.
5. According to the type of instantaneous release classified as follows : type B(3-5)ln, type C(5-10)ln, type D(10-20)ln

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Operating conditions

1. Ambient temperature: upper limit +40℃, lower limit -30℃;
2. Altitude: ≤2000m;
3. Wind pressure: not 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 variety less than 25℃ .

Technical data

Item			Unit	Parameter
Rated voltage			kV	12
Rated	1min power frequency withstand voltage	Dry test	kV	42/ fracture 48
insulation level		Wet test	kV	34
	Lightning impulse withstand voltage (peak)		kV	75/ fracture 85
Rated current			A	630, 1250
Rated short-circuit breaking current			kA	20
Rated short-circuit breaking current time			Times	30
Rated short-circuit closing current (peak)			kA	50
Rated peak withstand current			kA	50
Rated short-time withstand current			kA	20
Rated short circuit duration			S	4
Opening time			ms	＜50
Closing time			ms	＜60
Full off time			ms	≤100
Arcing time			ms	≤50
Mechanical life			Times	30000
Switch on power			J	70
Rated operational voltage and auxiliary			V	DC 220
circuits rated voltage			V	AC 220