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ZN65A-12/T1250-25 Indoor Vacuum Circuit Breaker

The ZN65A-12/T1250-25 indoor vacuum circuit breaker is a new economical product. It adopts the spring energy storage type operating mechanism, including a four-link transmission mechanism, which can be operated by AC, DC or hand.

This indoor vacuum circuit breaker can be used as the control or protection switch in power transmission and distribution systems. It is especially suitable for occasions requiring frequent operations.

Environmental Conditions
1. Altitude: < 1,000m (Ordinary type), < 3,000m (Suitable-for-all-working-conditions Type)
2. Ambient Temperature: -25℃~+40℃
3. Relative Humidity: Daily average ≤ 95%, monthly average ≤ 90%
4. Earthquake Intensity: < 8degree
5. The indoor vacuum circuit breaker should be used in places without fire or explosion hazard, corrosive gas, or severe shaking.

Technical Parameters
No. Item Unit Value
1 Rated Voltage kV 12
2 Rated Current A 630 1250
3 Rated Short-circuit Breaking Current kA 20 25
4 Rated Peak Withstand Current kA 50 63
5 Rated Short-time Withstand Current kA 20 25
6 Rated Short-circuit Closing Current kA 50 63
7 Rated Short Circuit Duration s 4
8 Rated Short-circuit Current Breaking Times times 50
9 Rated Operating Sequence
Open- 0.3s-close open- 180s- close open
10 Rated Frequency Hz 50
11 Lightning Impulse Withstand Voltage kV 75
12 1min Power Frequency Withstand Voltage kV 42
13 Closing Time ms 40~80
14 Opening Time ms 35~60
15 Breaking Time ms ≤ 80
16 Mechanical Life times 10,000
17 Rated Breaking Current of the Capacitor Bank A 630
18 Rated Power of the Energy Storage Motor W 200
19 Rated Voltage of the Energy Storage Motor V 110. 220
20 Energy Storage Time s ≤ 15
21 Rated Voltage of the Closing and Opening Electromagnet V DC 110. 220
22 Rated Current of the Auxiliary Switch A AC 10. DC 5

BBE is an experienced indoor vacuum circuit breaker manufacturer and supplier in China. We also provide air circuit breaker, distribution board, withdrawable low voltage switchgear, and much more.

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