Vacuum circuit breakers BB/TEL for rated voltage 6(10) kV, rated currents up to 3150 A, rated tripping currents up to 31,5 kA, climatic version U, placement categories 2 and 3, consisting of switching module ISM15 series three-pole design with phase electromagnetic drive and control module CM series, are designed for switching of electric circuits during normal and emergency modes in networks of three-phase alternating current with frequency 50 Hz with isolated, compensated and earthed neutral.Vacuum circuit breakers are designed for use in power grid complex and in various branches of national economy, including oil and gas producing, processing, petrochemical, chemical, mining and other industries.Vacuum circuit breakers series BB/TEL are used as part of switchgear and CSR general industrial or explosion-proof versions.
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