Eaton 3AS4 Vacuum Circuit Breaker
3AS4 Vacuum Circuit Breakers are a new generation of indoor vacuum circuit breakers with integrated encapsulated pole units. These circuit breakers can be used in harsh environments or where frequent operations of rated working current or multiple switching of short circuit current are required.
Core features
- Powerful switching and maintenance-free care using Eaton’s internationally recognized vacuum interrupter
- Proven APG encapsulation process to prevent damage from harsh conditions
- Complete compatibility with the mainstream domestic medium voltage distribution panel KYN28, lowering costs for Chinese users
- Guaranteed interchangeability and universality with all products being subjected to pre-engineering tests for standard panels
- Stable performance proven over hundreds of mechanical operation running-in tests on all products before they are delivered
- Proven spring mechanism for stable operation, strong protection against corrosion and a long service life
- Class E2 electrical endurance, class M2 mechanical endurance and class C2 breaking capacitive current as per GB 1984-2003
Specifications
3AS4 Vacuum Circuit Breaker
RATED VOLTAGE
RATED CURRENT
BREAKING CURRENT
BREAKING CLASS
MECHANICAL LIFE
PARAMETERS
RATED VOLTAGE
12kV
12kV
12kV
RATED CURRENT
630–1250A
630–1250A
1250–4000A FC
BREAKING CURRENT
25kA
31.5kA
40kA
BREAKING CLASS
E2
E2
E2
MECHANICAL LIFE
30,000
30,000
20,000
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