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サーキットブレーカー EKF PROxima VA 47-100 SeriesのPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。EKF PROxima VA 47-100 Series 17 ページ。 Miniature circuit breakers
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The miniature circuit breakers series VА 47-100 from EKF PROxima are used
in AC power circuits with rated voltage 230/400 V and frequency 50Hz.
The miniature circuit breakers are mechanical switching devices and used
for quick on/off switching in AC power networks and for protection against
overload currents and short-circuits in residential and public buildings.
The miniature circuit breakers series VА 47-100 from EKF PROxima
correspond to GOST IEC 60898-1.
2 TECHNICAL CHARACTERISTICS
Basic technical characteristics are given in Table 1
Table 1
Parameter
Number of poles
Rated voltage, Un, V
Frequency, Hz
Rated load current In, А
Impulse withstand voltage, kV
Tripping characteristics
Thermal trip unit. If the ambient tem-
perature differs from 30°С, the rated
current of the miniature circuit breaker
shall be multiplied by the coefficient
given in fig. 2
Max. breaking capacity, not less
than Iсn, А
Protection degree
Mechanical endurance, cycles
Electrical endurance, cycles
Cross- section of connected wire,
mm, мм²
Climate version
at I=1,13In, response t≤1h (for In≤63A)
t≤2h (for In>63A) without release
at I=1,45In, response t≤1h (for
In≤63A) t≤2h (for In>63A) tripping at
I=2,55In,1c<tcp<60c (for In<32A);
1c<tcp<120c (for In>32A) tripping
2
Value
1; 2; 3; 4
230/400
50
10 - 125
4
С, D (fig. 1)
10 000
IP20
20 000
8 000
1-35
NF 4