High Voltage Vacuum Interrupter for ZN28 VS1 Indoor Circuit Breaker.ZN28 VS1 ZKTD1600/2000/25000/12-40;250.

• Breaking Capacity: 12kv
• Operation: Electric Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: VCB
• Model NO.: VTD358115A
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: ISO9001-2000
• Transport Package: Pallet, Carton(Ploy Bags, Foam)
• Specification: Silver, Copper, Ceramics
• Trademark: Wuhan Feite Brand
• Origin: China
• HS Code: 8535900090
• Production Capacity: 10000PCS/Year

Product Description

PRODUCT DESCRIPTION:

ZN28 VS1 ZKTD2500/12-31.5
ZN28 VS1 ZKTD1600/12-40
ZN28 VS1 ZKTD2000/12-40
ZN28 VS1 ZKTD2500/12-40

Main Technical Data
Rated voltage	kv	12
Rated current	A		1600/2000/2500
Rated frequency	Hz	50
Rated short-time power frequency withstand voltage(1 min)	kv		48
Rated lightning impulse withstand voltage	kv		85
Rated short-circuit breaking current	KA	31.5/40
Rated short-circuit making current      (peak)	KA	80/100
Rated operations of short-circuit breaking current interruption	times		30
Rated single capacitor bank breaking current	A	630
Rated short-time withstand and current	KA	31.5/40
Rated peak withstand current	KA	80/100
Rated duration of short-circuit	s	4
Mechanical life	times	20000
contact closing force due to bellows and atmosphere	N	250±50
counterforce at rated contact force	N	330±60
circuit resistance at rate contact force	μΩ	≤15
shelf life	years	20
Contact erosion limit	mm	3
Weight of moving parts	kg	≤2.7
MECHANICAL DATE FOR MATCHED VACUUM SWITCHGEAR
rated contact stroke	mm	11±1
average opening speed	m/s	1.1±0.2
average closing speed	m/s	0.7±0.2
added contact force	N	3150/4500±200
contact bouncing duration at closing operation	ms	≤2
contact bouncing bank amplitude of opening operation	mm	≤2
three-pole simultaneity	ms	≤1

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