Outdoor High-Voltage Vacuum Circuit Breaker ZW8-12 price_Manufacturer_How much

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Outdoor High-Voltage Vacuum Circuit Breaker ZW8-12

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Jiangxi Kerui Electric Co., Ltd.

Located Region:

China

Address:

No. 439, Yizhi Road, Zone A, Xiaolan Economic and Technological Development Zone, Nanchang County, Nanchang City, Jiangxi Province

Biz Consulting:

0791-88556630

E-mail:

1245026240@qq.com

Online Contact

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Overview:

The ZW8-12 series vacuum circuit breaker is a high-voltage outdoor switchgear designed for a rated voltage of 12kV and three-phase AC systems with a frequency of 50Hz. It is primarily used for breaking and closing load currents, overload currents, and short-circuit currents in rural power grids, urban power grids, and small power systems.

The product features a three-phase common box structure, with the three-phase vacuum interrupter housed within a metal box. SMC insulation materials are used for phase-to-phase insulation and grounding insulation, ensuring reliable performance and high insulation strength.

Item	Unit	6.3kA	12.5kA	20kA
Rated Voltage	kV	12	12	12
Rated Current	A	630	630	630
Rated Short-Circuit Breaking Current	kA	6.3	12.5	20
Rated Short-Circuit Closing Current (Peak)	kA	16	31.5	50
Rated Peak Withstand Current	kA	16	31.5	50
Rated Short-Time Withstand Current	kA	6.3	12.5	20
Rated Insulation Level
Lightning Impulse Withstand Voltage (Peak)	kV	75	75	75
1-Minute Power Frequency Withstand Voltage	kV	42	42	42
Rated Operating Sequence		Open-0.3s-Close Open-180s-Close Open
Mechanical Lifespan	Times	10,000	10,000	10,000
Rated Short-Circuit Breaking Current Breaking Times	Times	30	30	30
Operating Mechanism Rated Closing Voltage	V	110/220	110/220	110/220
Operating Mechanism Rated Opening Voltage	V	110/220	110/220	110/220
Contact Opening Distance	mm	11 ± 1	11 ± 1	11 ± 1
Overtravel (Contact Spring Compression Length)	mm	3 ± 0.3	3 ± 0.3	3 ± 0.3
Three-Phase Closing Non-Simultaneity	ms	≤2	≤2	≤2
Contact Closing Bounce Time	ms	≤2	≤2	≤2
Average Opening Speed	m/s	1.0 ± 0.2	1.0 ± 0.2	1.0 ± 0.2
Average Closing Speed	m/s	0.7 ± 0.15	0.7 ± 0.15	0.7 ± 0.15
Opening Time at Maximum Operating Voltage	ms	15-50	15-50	15-50
Opening Time at Minimum Operating Voltage	ms	30-60	30-60	30-60
Closing Time	ms	25-50	25-50	25-50
Resistance of Each Phase Main Circuit	μΩ	≤120 (with G ≤200)	≤120 (with G ≤200)	≤120 (with G ≤200)
Allowable Cumulative Wear Thickness of Moving and Static Contacts	mm	3	3	3
Weight	kg	152 (with G 180)	152 (with G 180)	152 (with G 180)
Phase Center Distance	mm	175 ± 1.5	175 ± 1.5	175 ± 1.5

Modular AC Metal-Enclosed Ring Main Unit HXGN15-12