| Prod Model: |
ZN73A-12 |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Circuit Breaker: |
Vacuum Circuit Breaker |
| Arc-extinguishing Medium: |
Vacuum |
| Breaking Capacity: |
High Voltage Circuit Breakers |
| Poles Number: |
3 |
| Certification: |
CCC |
| Operation: |
Electric Type |
| Installation: |
Fixed |
| Speed: |
High-Speed Circuit Breaker |
| Structure: |
Conventional Circuit Breaker |
Product Description
ZN73A-12 series permanent magnet-type indoor high voltage vacuum circuit breaker is a three-phase AC 50Hz, rated voltage of 12kV indoor switchgear. I loaded the company with its own research and development of permanent magnetic actuator for industrial and mining enterprises, power generation and substation facilities as electrical control and protection purposes. The product has high reliability and long life characteristics, especially suitable for frequent operation, repeatedly breaking conditions, such as short-circuit current of the place.
Main Features
1. High reliability, long life, maintenance-free
2. China's first permanent magnetic actuator mechanical life of up to 100,000 times
3. With the traditional actuator compared without mechanical removal, locking devices, parts and components significantly reduced the number of hours worked with only one moving parts, low failure rate
4. Actuator performance and interrupter breaking. Closing the features needed for a very consistent
5. All sub-reliable operation of the bistable gate.
6. With anti-skip function
7. With controlling power low-voltage alarm refuse to close-
8. Mechanical manual sub-sub-gate and electric gate at the same rate, in the secondary power supply fault conditions, the application of an emergency sub-gate.
9. AC and DC energy storage operation type, operating current is less than 2A, can be done o-co-o operation within 2 hours after the blackout.
10. Highly reliable operation of control circuit module that can be tolerated in the run-time lightning, surge and other harsh conditions.
11. Versatility, installation size and ZN63 VS1 compatible with other products.
The Use of Environmental Conditions
1. Ambient temperature: not higher than +40°C, not less than -25°C at -30°Cto allow storage and transportation.
2. Altitude: not exceed 1000m, plateau type not exceed 3000m.
3. Relative humidity: daily average is not more than 90%, month average is not more than 95%, saturated vapor pressure daily average is not more than 2.2×10-3 MPa, month average is not more than 1.8 × 10-3MPa. The temperature dropped rapidly during the period of high humidity is that it may Gel.
4. Earthquake intensity: not more than eight.
5. No fire, explosion hazard, serious filthy, chemical corrosion, as well as places of intense vibration.
Mainly Technical Parameters
NO | Item | | Units | Parameters |
| 1 | Rated voltage | KV | 12 |
| 2 | Rated insulation level | 1min Frequency voltage | KV | 75 |
| Rated Lightning Impulse voltage tolerance | 42 |
| 3 | Rated current | A | 630-1250 | 1250-3150 | 1250-4000 |
| 4 | Rated short-circuit breaking current | kA | 20 | 31.5 | 40 |
| 5 | Rated short-circuit closing current (peak) | 50 | 80 | 100 |
| 6 | Dynamic Stability rated current(peak) | 50 | 80 | 100 |
| 7 | Rated thermal stability of current(RMS) | 20 | 31.5 | 40 |
| 8 | Rated short-circuit breaking current breaking number | Times | 30 | 30 | 20 |
| 9 | Rated thermal stabilization time | S | 4 |
| 10 | Rated operating sequence | | O-0.3s-CO-180s-CO |
| 11 | Mechanical life | Times | ≥50000 ≥50000 ≥30000 |
| 12 | Permanent magnetic actuator and transmission part of the Mechanical life | A | ≥100000 ≥100000 ≥100000 |
| 13 | Rated single capacitor breaking current | 630 |
| 14 | Rated back to back capacitor breaking current | M | 400 |
| 15 | Rated breaking current-step | kA | 12.6 16 |
*There should be greater than the rated current 3150A ventilation measures.
Wenzhou Suoli Electric Co, . Ltd. (will change the namer to Wenzhou Manjia Electric Co., Ltd. ) is a manufacturer specialized in low-voltage electrical appliance, gathering research, manufacture, distribution and service as a whole. We mainly produce switch cabinet, JXF, distribution box, lighting box, plastic water-proof and dust-proof junction box, seal box, MCBs and so on.
Our company is established in 1995, located in Yueqing economic development zone with an area of 7800 square meters which is next to national highway 104, the transportation is very convenient.
Relying on powerful technology strength, advanced testing equipment, exquisite technical and modernized management mode, based on the principle that people oriented, we have 200 workers and 20 engineers. We import numerical control bending machine, cutting machine, punch, injection molding machine and such top-ranking facilities. Our products have passed certification of SON, CE and ISO9001.
The satisfaction of customers is our wishes and responsibility. In order to offer best services, we require all the staff to strengthen the notion of customer first. Besides, we also have established the center of after-sale services.
The company always keeps in touch in with clients and communicates with potential clients. Suoli always has been keeping the idea of the human being as base and considers honesty as the foundation, peace as the most valuable thing, and puts credibility in the first place.
Together with you, Souli is willing to create a better future.
