Table 8. Energizing inputs
Description
Value
Rated frequency
50/60 Hz ± 5 Hz
Current inputs
Rated current, I
n
1/5 A
1)
Thermal withstand
capability:
• Continuously
20 A
• For 1 s
500 A
Dynamic current withstand:
• Half-wave value
1250 A
Input impedance
<20 mΩ
Voltage inputs
Rated voltage
60...210 V AC
Voltage withstand:
• Continuous
240 V AC
• For 10 s
360 V AC
Burden at rated voltage
<0.05 VA
1)
Residual current and/or phase current
Table 9. Binary inputs
Description
Value
Operating range
±20% of the rated voltage
Rated voltage
24...250 V DC
Current drain
1.6...1.9 mA
Power consumption
31.0...570.0 mW
Threshold voltage
18...176 V DC
Reaction time
3 ms
Transformer Protection and Control
1MRS756891 F
RET615
Product version: 4.0
26
ABB
Summary of Contents for RET615
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