Product Details
Zn85-40.5 Indoor High Voltage Vacuum Circuit Breaker
Product Description
ZN85 40.5 vacuum circuit breaker
1, indoor type
2, 3phase
3, rated voltage: 40.5kv
4, apply for GB IEC
36kv vacuum circuit breaker
Type ZN85-40.5 indoor alternating current high voltage vacuum
circuit breaker
Usage and Characteristics
Type ZN85-40.5 indoor alternating current high voltage vacuum
circuit breaker is applicable for the three-phase AC 50Hz. 40.5kv
power system. It can used as the protective and contorl device in
the industrial and mining enterprise. Power plant and substation.
It is applicable for frequently operation.
The circuit breaker meet the requirements of state standard GB 1984
Alternating current high voltage circuit breaker and JB3855
3.6-40.5kv indoor alternating current high voltage vacuum circuit
breaker
Service and Environmental Condition
1, Ambient Temperature: -25° C~+40° C, Daily mean: ≤ 35° C
2, Relative humidity: Daily mean ≤ 95%, monthly mean ≤ 90%, Water
Vapor: Daily mean ≤ 2.2Mpa
3, Water Vapor: Monthly mean ≤ 1.8Mpa
4, Sea-level Altitude: ≤ 1000m
5, no dust, smoke, corrosive and inflammable gas, vapor, salt spray
or strenuous vibration.
6, The amplitude of electromagnetic interference induced in the
auxiliary circuit: ≤ 1.6KV
Main Technical Parameters
No. | Item | | Unit | Data | 1 | Rated voltage | | KV | 40.5 | 2 | Rated insulation level | Power frequency withstand voltage 1min (effective value) | KV | 95 | | | Lightning impulse withstand voltage (effective value) | KV | 185 | 3 | Rated current | | A | 1000 1250 1600 2000 | 4 | Rated frequency | | Hz | 50 | 5 | Rated short - time withstand current | | KA | 20 25 31.5 | 6 | Rated peak withstand current | | KA | 50 63 80 | 7 | Rated short-circuit breaking current | | KA | 20 25 31.5 | 8 | Rated short circuit making current(peak value) | | KA | 50 63 80 | 9 | Rated Short-circuit Continuing Time | | S | 4 | 10 | Rated operating sequence | | | C-0.3s-CO-180s-CO | 11 | Breaking time | | ms | <80 | 12 | Rated short circuit breaking current times | | time | 20 | 13 | Single capacitor unit breaking current | | A | 630 | 14 | Machinery life | | Time | 10000 | 15 | Rated operating voltag | | V | -110/~110,-220/~220 |
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Company Profile
Xi'an ERFA Switchgear Co.,Ltd is under ERFA Industries group, was
established in 2006, It is located in moden enterprise central, and
has a registered captial of RMB60 millions and specializes in
developing, manufacturing and selling high voltage and low voltage
electrical products.
Our company professional developed: ZN63A(VS1)-12 VCB (vacuum
circuit breaker), ERFA (ZN73A)-12 permanent magent VCB, ZN163
(ZN)-24 VCB, ERFA-40.5 VCB, ect.


