Zw8-12 Outdoor Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Zw8-12
• Model NO.: ZW8-12
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: ISO9001-2000, IEC
• Transport Package: Wooden Carton
• Specification: ZW8-12 Vacuum Circuit Breaker
• Trademark: JECSANY
• Origin: China
• HS Code: 8504220000
• Production Capacity: 50000PCS/Years

Product Description

Circuit Breakers & Switch /Outdoor Circuit Breakers

ZW8-12 Vacuum Circuit Breaker

 

Name		Unit	Data
			16kA	20kA	25kA
Rated voltage		KV	10
Max. operation voltage		KV	12
Rated current		A	630/1250
Rated short-circuit breaking current		KA	16	20	25
Rated short-circuit making current		KA	40	50	63
Rated peak withstand current		KA	40	50	63
Rated short-time withstand current		KA	16	20	25
Rated Insulate level	1min P.F withstand voltage	KV	42/48
	Lightning impulse withstand voltage(peak)	KV	75
Rated operating sequence			O-0.3s-CO-180s-CO
Mechanical life		Times	10000
Rated short-circuit breaking current breaking times		Times	30
Rated Operating Setup Closing Voltage		V	AC220 DC220,100
Rated Operating Setup Opening Voltage		V	AC220 DC220,100
Contact Stroke		mm	11±1
Contact Over travel (Contact Spring Constringent Length)		mm	3
Out Of Simultaneity Of Contact Closing And Opening		ms	≤2
Contact Closing Bounce Time		ms	≤2
Average opening Speed		m/s	1.0±0.2
Average Closing Speed		m/s	0.7±0.15
Opening Time	The Highest Operating Voltage	s	0.015-0.05
	The Lowest Operating Voltage	s	0.03-0.06
Contact Closing Time		s	0.025-0.05
Current by Phase Circuit Resistance		μΩ	≤120(≤200)
Contact erosion limit		mm	3