Modular circuit breakers (MCB) VA47-29 are designed to protect distribution and group circuits having different loads:
– electric appliances, lighting – B characteristic MCBs,
– drives with moderate starting currents (compressor, fan group) – C characteristic MCBs,
– drives with high starting currents (hoisting mechanisms, pumps) – D characteristic MCBs.
Modular circuit breakers VA47-29 are recommended for use in electrical distribution panels of residential and public buildings.
Additional protection against burning of automatic circuit breaker and heat removal due to plastic and metallic fire resistant plates.
Improved arc blowout system: longer service life, increased resistance to short-circuit currents: patent No. RU 139886.
Increased strength of the casing in the area of connection of conductors due to two additional rivets and monolithic faceplate.
Notches on the contact clamps reduce heat loss and increase the mechanical stability of the connection.
Protection of heat release mechanism by plexiglass against change of factory settings.
Quick mounting and more reliable mounting on a DIN-rail by means of latches in dual fixed position.
Soldering of the silver-containing composite increases the wear resistance of the contact group and reduces the contact resistance.
The possibility of simultaneous connection of FORK bus and flexible conductor for the distribution of circuit power supply through the upper terminal clamps, as well as the possibility of connection via PIN bus.
The presence of the indicator of contacts position.
