Fuji Electric EW32EAG - Operating Characteristics and Performance; Overload Switching Performance

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2
Operating characteristics and performance
2-3 Overload switching performance
2-3 Overload switching performance
Contacts should have no overt signs of damage, burn out, welding and other electrical or mechanical faults after an overload
switching test is conducted in accordance with the stipulations (IEC 60947) in Table 2-9.
Table 2-9 Overload switching test conditions
Rated current
(A)
Circuit condition Operating system and No. of operations
Voltage Current Power factor/
time constant
Frequency Manual closing
Manual opening
Manual closing
Automatic opening
Operations
per hour
100 or less Max. operating
voltage (Ue)
AC: 6 times the
rated current
(In), 150A min.
Power factor:
0.5
45 to 62Hz 9
Total: 12
3 120
More than 100,
but 315 or less
120
More than 315,
but 630 or less
DC: 2.5 times
the rated current
(In)
Time constant:
2.5ms
120
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