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| Categories | Vacuum Circuit Breaker |
|---|---|
| Brand Name: | Metalwork |
| Model Number: | 3AV5-12 |
| Certification: | CE, ISO, CCC |
| Place of Origin: | China |
| MOQ: | 1 set |
| Price: | Negotiable |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 100 sets per month |
| Delivery Time: | 20 days |
| Packaging Details: | Plywooden package |
| Model: | 3AV5-12 |
| Breaking Capacity: | 20, 25, 31.5, 40KA |
| Rated Voltage: | 12KV |
| Rated Current: | 630A, 1000A, 1250A, 1600A, 2000A, 2500A, 3150A |
| Mechanical Life: | 20000 times |
| Motor Voltage: | DC/AC 110V 220V |
| Types: | withdrawable, stationary, side-mounted |
| Warranty: | 1 year |
| Company Info. |
| METALWORK MACHINERY (WUXI) CO.LTD |
| Verified Supplier |
| View Contact Details |
| Product List |
3AV5 circuit breaker series is indoor high-voltage switchgear, suitable for rated voltage 12 kV, frequency 50 Hz three-phase power system, as protection and control appliances, with high reliability, easy operation, simple maintenance and other characteristics. The circuit breaker can be used for middle-type switchgear and fixed switchgear as well as oil-free transformation. Because of the special advantages of vacuum circuit breaker, it is especially suitable for frequent operation requiring rated current, or many times to break the short-circuit current. The 3AV5 vacuum circuit breaker has three installation modes: fixed type, extraction type and side mounted. For special requirements, please contact the manufacturer.
Technical Parameters:
| Items | Unit | Date | |||
| Rated voltage | KV | 12 | |||
| Rated impulse withstand voltage | 75 | ||||
| Rated short-time power frequency withstand voltage (1min) | 42 | ||||
| Rated frequency | Hz | 50~60 | |||
| Rated short-circuit breaking current | KA | 20 | 25 | 31.5 | 40 |
| Rated current | A | 630 1000 1250 | 630 1000 1250 1600 | 1250 1600 2000 2500 | 1600 2000 2500 3150 4000 |
| Rated short-time withstand current | KA | 20 | 25 | 31.5 | 40 |
| Rated peak tolerable current | 50 | 63 | 80 | 100 | |
| Rated short-circuit making current (peak value) | 50 | 63 | 80 | 100 | |
| Secondary circuit power frequency withstand voltage (1min) | V | 2000 | |||
| Rated operation sequence | O－0.3S－CO－180S－CO O－180S－CO－180S－CO (at 40KA) | ||||
Rated single/back-to-back capacitance bank breaking current Set breaking current | A | 630/400 (40KA 800/400) | |||
| Rated short-circuit breaking current DC flow percentage | ≤35% | ||||
| Opening time (rated voltage) | ms | 20-50 | |||
| Closing time (rated voltage) | ms | 30-70 | |||
| Mechanical life | times | 20000 | |||
| Rated short-circuit breaking current breaking times | times | 50 (40KA 30) | |||
| Allowable wear accumulate thickness of moving and static contacts | mm | 3 | |||
| Rated closing operating voltage | v | AC110/220 DC110/220 | |||
| Rated opening operating voltage | v | AC110/220 DC110/220 | |||
| Rated voltage of energy storage motor | v | AC110/220 DC110/220 | |||
| Rated power of energy storage motor | w | 80 | |||
| Contact opening distance | mm | 11±1 | |||
| Contact stroke | mm | 3.5±1 | |||
| Contact bounce time | ms | ≤2 (40KA ≤3) | |||
Three - phase opening and closing heterogeneity | ms | ≤2 | |||
| Average closing speed *1 | m/s | 0.9-1.3 | |||
| Average closing speed*2 | m/s | 0.4-0.8 | |||
| Main circuit resistance | μΩ | ≤50 (630A) ≤45 (1250A) ≤35 (1600-2000A) ≤25 (above 2500A) | |||
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