BP35 is a principally new vacuum circuit breaker of 35 kV rated voltage for indoor installation. It consists of poles molded of epoxy compound, universal electromagnetic drive and controlled by the electronic control unit positioned in the circuit breaker casing. Together assembled into complex indoor KU35 switchgears and outdoor KRPZ-35 switchgears, the circuit breakers form separate portable units of 35/10 kV modular transformer substations.

BP35NS / BP35NT are outdoor vacuum circuit breakers with electromagnetic (BP35NS) or spring (BP35NT) drives and silicon-organic insulation of poles. The circuit breakers are used in newly constructed KTPBR-110/35/10(6), KTPBR-35/10(6) modular transformer substations as well as retrofit of air and oil circuit breakers in substations being under modernization. BP35NT is intended to operate at temperatures from -35°C.

VBNK-35 «TURA» – three-poles outdoor vacuum circuit breaker with silicon-organic insulation and build-in electromagnetic drive. It has heating devices and could be supplied with build-in transformers.

VBC-35 and VBU-35 – vacuum circuit breakers of indoor installation, intended for  commutation electric networks at normal and emergency modes of 20 and 5 kA rated current. The circuit breakers are used in power engineering, metallurgy, installations with frequent commutations and have noteworthy switching resources for given class of voltage. Separate phase-by-phase commutation is used in this type of apparatuses to reduce commutation over-voltages.

Vacuum circuit breakers VBCO-27,5 – commutation apparatuses of indoor installation, intended for installation in feeder blocks of traction substations, sectionalization towers, parallel lines exchanges of rail-road electric networks, etc. The circuit breaker has spring drive with electromagnetic winding.

VBZO-27,5 is a single-phase outdoor vacuum circuit breakers with electromagnetic drive. The drive is design on the principle of electric-and-magnetic latch. The apparatus serves for commutation electric networks of 27,5 kV rated voltage. The circuit breakers of this type are used in outdoor switchgears of railroad substations.

	VBC-35	VBU-35	VBZO-27,5	VBCO-27,5
Rated voltage, kV	35	35	27,5	27,5
Rated current, A	1 250; 1 600	1 600	1 000	1 250; 1 600
Rated breaking current, kA	20	5	20	25
Mechanical resource, cycles	50 000	100 000	10 000	20 000
Switching resource, cycles
- at rated currents	20 000	20 000	10 000	20 000
- at short-circuit current breaking	50	50	50	30