in Ukraine - functional quality without compromise!
SFA and SDA series air circuit breaker is suitable for the
circuit of AC 50Hz/60Hz with rated service voltage 400V,
690V and rated service current up to 4000A. It is mainly used
to distribute electric energy and protect circuits and electric
equipment against over-load, under-voltage, short-circuit and
single-phase earthing fault. With intelligentized and selective
protection functions, the breaker can improve the reliability
of power supply, and avoid unnecessary power failure. The
breaker is applicable for power stations, factories, mines
(for 690V) and modern high-buildings, especially for the
distribution system of intelligentized building.
SIGMA ACBs are produced as fixed and drawable type from 630A up to 4000A according to the TS EN 60947-2 and CE standards. There is
auxiliary Contact 2NO+ 2NC on each sigma ACB.
Air circuit breakers could be coupled with wide range of accessories: aux.
and signal Contacts, all kind of releases,
mechanical interlocks, shunt trips and motor operator.
Ambient air temperature
a) Maximum not exceed +40°C
b) Minumum not lower than -5°C
c) 24h average value not exceed +35°C
Note: Ambient air temperature is -10°C or -25°C and users
should declare to manufacturer when put the order; ambient
working condition is between -25°C and +40°C. User should
negotiate with manufacturer.
Elevation ≤ 2000M
relative humidity is not exceeding
50% at the maximum ambient temperature of +40°C With
lower temperature, higher humidity would be permitted, but
the lowest average temperature in a month not exceeding
+25°C during the moistest month, and the maximum
monthly average relative humidity not exceeding 90% in that
month, and giving consideration to the dews on the goods
surface, which would appear due to temperature change.
УЗО, диф. реле и автоматы серии ABL.
Автоматические выключатели серии SIGMA.