Home » Products » Outdoor Vacuum Circuit Breaker » ZW20-12/630-20 Outdoor Vacuum Circuit Breaker
inquiry form

ZW20-12/630-20 Outdoor Vacuum Circuit Breaker

The ZW20-12/T630-20 outdoor vacuum circuit breaker is a pole-mounted air-insulated metal-enclosed switching device combining the advantages of similar domestic and foreign products. It is used to break and close normal load current and fault current in the overhead distribution network with the rated voltage of 12kV and the rated frequency of 50Hz. Our vacuum circuit breaker can also be used for receiving and distributing electric power in substations as well as industrial and mining enterprises.

This pole-mounted vacuum circuit breaker, C20E intelligent control and protection device, and the outdoor potential transformer jointly compose an outdoor pole-mounted intelligent control switch system. This system can automatically isolate the fault segment and restore the non-fault segment, thus achieving the automation of overhead distribution network. Controlled remotely or locally, this system has high reliability, no maintenance, intelligent automaticity and other features, which is the first choice for domestic overhead distribution network automation.

Environmental Conditions
1. Altitude: ≤ 1,000m
2. Ambient air temperature: -45℃~+40℃
3. Wind Speed: ≤35m/s
4. Relative Humidity: Daily average≤95%, monthly average≤90%
5. Earthquake intensity: ≤ class VIII
5. The outdoor vacuum circuit breaker should be used in places without fire or explosion hazard, chemical corrosion, or severe shock.

Technical Parameters
Item ZW20-12/T630-16 ZW20-12/T630-20
Rated Voltage kV 12 12
Rated Current A 630 630
Rated Short-circuit Breaking Current kA 16 20
Rated Dynamic Stable Current (Peak Value) kA 40 50
Rated Short-circuit Closing Current (Peak Value) kA 40 50
4s Rated Thermal Stable Current kA 16 20
Rated Short-circuit Current Breaking Times kA 30 30
Mechanical Life (times) 10,000 10,000
Power Frequency Withstand Voltage (kV) To ground, phase to phase (wet): 30 To ground, phase to phase (wet): 30
To ground, phase to phase/break: 42/48 To ground, phase to phase/break: 42/48
Rated Operating Sequence O-0.3s-CO-180s-CO
Rated Operating Voltage (AC) V 220

As a professional outdoor vacuum circuit breaker manufacturer and supplier in China, BBE provides a wide array of products, including gas insulated switchgear, withdrawable switchgear, low voltage distribution board, and more.

Inquiry Form