Zw32-12 Automatic Outdoor Vacuum Circuit Breaker with Metering Box Transformer Intelligent Switch

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Overcurrent Protection
• Model NO.: ZW32-12
• Rated Frequency: 50
• Rated Voltage: 12
• Rated Current: 630/1250
• Mechanical Life: 10000
• Transport Package: Export Box
• Trademark: DGG
• Origin: China
• HS Code: 8504311000
• Production Capacity: 100000PCS/Year

Product Description

Photo of product

General

ZW32-12 Series outdoor AC vacuum circuit breaker is 12kV distribution equipment of 3 phase,50Hz. It's used to connect and break load current,over-load current, and short-circuit current. It's applicable for substations, industry, mining, and urban and rural electric power networks, especially applicable on occasions with frequent operation and automatic power distribution
network.

Model and Meanings

 

Technical specification
No.	Item		Unit	Data
1	Rated frequency		Hz	50
2	Rated voltage		kV	12
3	Rated current		A	630/1250
4	Rated short-time power frequency withstand voltage	Interphase, to earth(wet)	kV/min	42/1
		Interphase, to earth(dry)		48/1
		Break(dry)		34/1
		Secondary circuit to earth		2/1
5	Rated lightning impulse withstand voltage	Interphase, to earth	kV	75
		Break		85
6	Rated short-circuit breaking current		kA	20/25
7	Rated short-circuit making current(peak)			50/63
8	Rated short-time withstand current and duration		kA/s	(20/25)/4
9	Rated peak withstand current		kA	50/63
10	Rated short-circuit breaking current breaking times		Times	30
11	Rated operating voltage and rated voltage of the auxiliary circuit		V	AC/DC220,DC48,DC24
12	Main circuit resistance	Without isolation	μΩ	≤80
		With isolation		≤120
13	Mechanical life		Times	10000
Note: If the altitude is over 1000m, the rated insulation level should be modified as appropriate.