3 Description
3.1.6 Arc Quenching Medium SF
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a SF
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-filling gauge pressure (nominal density line)
b Signal Loss of SF
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c General lockout SF
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e Liquefaction curve
Fig. 1 SF
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-filling and operating values of density
monitor (gauge pressure)
Filling weight (complete circuit-breaker) 44.6 kg
Volume (complete circuit-breaker) 966 dm3
SF
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nominal filling gauge pressure at +20°C 6.0 bar
Monitoring of the SF
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Signal Loss ofSF
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at 20°C
General lockout SF
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at 20°C
5.2 bar 5.0 bar
Filter material (complete circuit-breaker) 7.5 kg
Table 4 Arc quenching medium SF
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3.1.7. Auxiliary Switch
Rated voltage 250 V
DC
220 V
DC
125V
DC
110V
DC
60V
DC
48V
DC
Rated normal current 10A 10A 10A 10A 10A 10A
Switching capacity
Resistive load 2.5 A 2.5 A 4A 5A 9A 10A
Resistive-inductive load
(time constant x = 20 ms)
1,2 A 2A 2.5 A 4A 7A 9A
Table 5 Auxiliary switch
Auxiliary switch contact class 1
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