ZW8-12G Series 12kV 16kA/20kA/25kA 630A 1250A Outdoor VCB

ZW8-12 outdoor high voltage AC vacuum circuit breakerZW8-12 outdoor high-voltage AC vacuum circuit breaker is used in 12V, 50Hz three-phase power systems. It is mainly used to switch the load current,

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ZW8-12 outdoor high voltage AC vacuum circuit breaker

ZW8-12 outdoor high-voltage AC vacuum circuit breaker is used in 12V, 50Hz three-phase power systems. It is mainly used to switch the load current, overload current and short-circuit current of rural power grids, urban power grids and small power systems. The overall structure of the product is a three-phase common box type. The three-phase vacuum arc extinguishing chamber is placed in a metal box. It uses SMC insulation material for inter-phase insulation and ground insulation. It has reliable performance and high insulation strength. The circuit breaker can be equipped with an isolation switch or anti-surge protector according to user needs. The circuit breaker can be equipped with a manual spring operating mechanism or an electric spring operating mechanism. The electric spring operating mechanism can be equipped with a wireless remote control. The circuit breaker can be combined with the corresponding intelligent controller to form an intelligent circuit breaker according to user requirements to realize distribution network automation.

Normal service conditions

1. Ambient temperature: -40°C ~+40°C

2. Altitude :≤3000m (if the altitude is higher, the rated insulation level will be increased accordingly);

3. The ambient air can be polluted by dust, smoke, corrosive gases, steam or salt spray, and the pollution level is IV;

4. The wind speed shall not exceed 34m/s (equivalent to 700Pa on the cylinder surface);

5. Vibration or ground motion from outside the switchgear and control equipment can be ignored;

6. Special conditions of use.

If the application is required under normal use conditions other than those specified above, please consult with us.

Main technical parameters

The serial numberThe name of theunitdata
1The rated voltageKV12
2Rated currentA630  1250
3Power frequency dry withstand voltage (1 min)
42
4Lightning shock withstand voltage (peak)KV75
5Rated short-circuit breaking currentKV16  20  25
6Rated short circuit switching current
40  50  63
7Rated peak tolerance currentKA40  50  63
84S short-time withstand currentKA16  20  25
9Rated order of operation
Points -0.3s- points -180s- points
10Rated short-circuit current times of breakingtimes30
11Mechanical lifetimes10000
12Rated voltage of energy storage motorV
13Rated operating voltage with special spring operating mechanismVDC/AC220


VDC/AC220
14Rated current of overcurrent tripperA5
15Allowable wear thickness of static contactmm3
16From contactmm11±1
17(Overstroke (contact spring compression length)mm
18Tripole and brake are not synchronousms≤2
19Contact closing spring timems≤2
20Average opening speedm/s1±0.2
21Average closing speedm/s0.7±0.15
22Break-brake times0.015-0.05


s0.03-0.06
23Closing times0.025-0.05
24Main circuit resistanceμΩ≤12(G≤200)

Hebei Liebang Electric Technology Co. LTD was established in 2000, located in Hebei, China, covering an area of 20,000 square meters, is a group integrating R&D, manufacturing, sales and service. Our products cover many fields such as transformersswitch cabinetselectricity meterswires and cables, and are widely used in construction, energy, communication and other industries.The company has its own technology research and development team. All products can be individually designed according to structural, mechanical and electrical principles. With advanced production equipment, testing equipment, production line and computer network control system, it is a leading domestic power equipment manufacturer in terms of product production, component selection and assembly. It has also passed ISO9001, ISO14001, ISO45001, CQC, test report and other quality system certifications, and the credit rating AAA certificate.We sincerely invite you to visit our factory for guidance and negotiation, and to explore potential cooperation opportunities.
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