ZW28 Series High Voltage Outdoor Vacuum Circuit Breaker VCB

ZW28-12 series outdoor vacuum circuit breaker is high voltage outdoor VCB with rated voltage 12KV, alternative current 3 phases 50 Hz.

Product Details Company Profile

Description

Place of Origin: Guangdong, China (Mainland)
Brand Name: Powint
Model Number: ZW28
Type: High Voltage
Poles Number: 3
Color: Grey or blue
Mechanical Life: 10000 Times
Current: 630A
Certificate: pccc

ZW28-12 series outdoor vacuum circuit breaker is high voltage outdoor VCB with rated voltage 12KV, alternative current 3 phases 50 Hz.

It is widely used for switch on/off the load current, over load current and short circuit current for rural grid, urban grid and small power system. Its structure is 3 phases in one enclosure, 3 phase arc extinguishing room is in metal enclosure. The insulation between phases and to ground is by SMC insulation material. It is with reliable function and good insulation.

No.	Item	Unit	Data
1	Rated voltage	KV	12/17.5/24
2	Rated power frequency	Hz	50,60
3	Rated current	A	630,800,1000
4	Rated short-circuit breaking current	KA	12.5,16,20,25
5	Rated withstand current(peak)	KA	31.5,40,50,63
6	Rated short-time withstand current(4s)	KA	12.5,16,20,25
7	Rated short-circuit making current (peak)	KA	15,40,50,63
8	Mechanical life	Times	10000
9	Rated short-circuit breaking time	Times	30
10	1 min P.F withstand voltage-dry(phase to phase, to earth;across open contacts	KV	42/49,42/48,60
11	lighting impulse withstand voltage peak(phase to phase, to earth, across open contacts)	KV	75/85,95/110,125/145
12	P.F withstand voltage for secondary loop	KV	2
13	Net weight	KG	145,185
14	SF6 rated gage pressure	Mpa	"0"