Vacuum Circuit-Breakers for Special Applications – Siemens
Siemens vacuum circuit-breakers for special applications are designed for medium-voltage power distribution under demanding conditions. They reliably handle high currents, frequent operations, and generator or railway switching, while being almost maintenance-free throughout their lifecycle. Flexible designs accommodate customer-specific requirements, offering high product quality and sustainable vacuum technology
Technical Specifications
Applications: Generator switching, high current switching, frequent operations, railway applications
Voltage levels: Medium-voltage distribution up to 24 kV
Breaking capacities:
3AE2: 31.5 kA
3AH37/38: 50 kA, 63 kA, 72 kA
3AK7: 40 kA, 50 kA
3AH3: 63 kA
Rated currents: 4,000 A, 5,000 A, 6,300 A, 8,000 A
Operating cycles: 30,000 ops, 60,000 ops, 120,000 ops
Frequency: 16.7 Hz, 25 Hz
Poles: One pole, Two poles
Benefits: Maintenance-free, high reliability, flexible design, German-made sustainable vacuum technology
Voltage levels: Medium-voltage distribution up to 24 kV
Breaking capacities:
3AE2: 31.5 kA
3AH37/38: 50 kA, 63 kA, 72 kA
3AK7: 40 kA, 50 kA
3AH3: 63 kA
Rated currents: 4,000 A, 5,000 A, 6,300 A, 8,000 A
Operating cycles: 30,000 ops, 60,000 ops, 120,000 ops
Frequency: 16.7 Hz, 25 Hz
Poles: One pole, Two poles
Benefits: Maintenance-free, high reliability, flexible design, German-made sustainable vacuum technology
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