Technical Parameter
Rated voltage: 12kV.
Rated current: 1200A.
Rated short-circuit breaking current: 37kA.
Rated short-time power frequency withstand voltage: generally 42kV (1min).
Rated lightning impulse withstand voltage: usually 75kV (peak).
Mechanical lifespan: up to 30000 cycles.
Electrical lifespan: Under rated short-circuit breaking current, the electrical lifespan is generally more than 30 times.
Contact material: CuCr50/50, with high dielectric strength, high short-circuit breaking capacity, strong resistance to arc burning, low contact resistance and other characteristics.
Size and weight
The specific size and weight information of the 15-GMI-500-1200-37 vacuum circuit breaker is not clearly provided in the search results. It is recommended to refer to Siemens’ official technical documentation or contact Siemens technical support for more detailed size and weight data.
application area
Medium voltage distribution system: suitable for medium voltage distribution systems with a voltage level of 12kV, and can be installed in air insulated switchgear.
Special applications: such as generator outlets, electric arc furnace transformers, and other special occasions.
Industry and infrastructure: widely used in power distribution fields such as power grids, power plants, metallurgy, petrochemicals, and urban infrastructure construction.
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