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Electrical installation
4.9 Additional connections
Article no.
SCCR (short circuit current rating)
according to UL508A File no.
E83449
8)
Minimum short-circuit current
Rated output of a typical 6-pole standard induction motor based on I
1)
Shaft output of the matching motor based on the current according to NEC table 430-250.
2)
The currents are based on a line power factor of cos φ = 1.
3)
The base-load current I
4)
(see "Overload capability").
The base-load current I
5)
(see "Overload capability").
The current values given here are based on the rated output current.
6)
The SCCR value of the cabinet unit is based on the fuses listed. Substitutes are not permitted.
7)
In conjunction with the specified fuses or circuit breakers.
8)
Minimum current required for reliable triggering of the protective devices.
9)
Current for unit rating
10)
The possible output current of the inverter is specified in brackets.
Stripped lengths of the power cables: front 1" (25.4 mm), rear 2" (50.8 mm).
11)
Tightening torque: 375 lb.in. (42.4 Nm).
4.9.2
dv/dt filter plus Voltage Peak Limiter (option L10)
Description
The dv/dt filter plus Voltage Peak Limiter comprises two components: the dv/dt reactor and
the Voltage Peak Limiter , which cuts off the voltage peaks and returns the energy to the DC
link.
The dv/dt filters plus Voltage Peak Limiter must be used for motors for which the proof
voltage of the insulation system is unknown or insufficient. Standard motors of the 1LA5,
1LA6 and 1LA8 series only require them at supply voltages > 500 V +10%.
The dv/dt filter plus Voltage Peak Limiter limits the voltage gradient to values < 500 V/µs and
the typical transients to the values below (with motor cable lengths of < 150 m):
● < 1000 V at U
● < 1250 V at 660 V < U
Depending on the converter power, option L10 can be accommodated in the converter
cabinet unit, or an additional cabinet with a width 15.8" (400 mm) or 23.6" (600 mm) is
required.
120
6SL3710- 7LE37-5AU3
kA
65
A
12000
9)
is based on a duty cycle of 110% for 60 s or 150% for 10 s with a duty cycle duration of 300 s
L
is based on a duty cycle of 150% for 60 s or 160% for 10 s with a duty cycle duration of 300 s
H
< 575 V
line
line
7LE41-0AU3
84
2500
or I
at 400 V 3 AC 50 Hz.
L
H
< 690 V.
Operating Instructions, 12/2018, A5E36652151A
Enclosed Drives
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