Schneider Electric 58 TRX User Manual
Class 8839 58M Enclosed AC Drives
Motor Protecting Output Filters
161
09/2003
©
2000–2003 Schneider Electric All Rights Reserved
Low pass filters can be used on the output of the
Class 8839 58M Enclosed AC Drive to decease
the stress of resonant frequencies on the attached
motor. While low pass filters are not necessary for
most installations, they do provide substantial
benefits in installations involving long motor leads,
such as:
Class 8839 58M Enclosed AC Drive to decease
the stress of resonant frequencies on the attached
motor. While low pass filters are not necessary for
most installations, they do provide substantial
benefits in installations involving long motor leads,
such as:
• 460 V or higher rated AC drives
• 1–25 hp rated units, if cable lead lengths are in
excess of 75 feet
• 30–400 hp rated units, if cable lead lengths are
in excess of 300 feet
• Use of a non–inverter duty rated motor(s)
• Existing general purpose motors subject to
retrofit to an AC drive
The motor protecting output filters combine
inductance, capacitance, and resistance to form a
low pass filter. This filter will lower the dV/dt levels
to prevent exciting the natural resonant wire
frequency of the motor cables. Motors compliant
to NEMA MG–1 Part 31 guidelines do not require
the use of motor protecting output filters.
inductance, capacitance, and resistance to form a
low pass filter. This filter will lower the dV/dt levels
to prevent exciting the natural resonant wire
frequency of the motor cables. Motors compliant
to NEMA MG–1 Part 31 guidelines do not require
the use of motor protecting output filters.
Motor Protecting Output Filters:
1. Output filters are manufactured by
Trans-Coil, Inc.
2. Output filters are designed for cable lead
lengths ranging from 50 to 1000 feet.
3. Output filters include 1.5% nominal reactance
at 480 V.
4. Output filters are enclosed in Type 1 general
purpose enclosures.
5. Output filters are intended for separate
mounting and wiring by user.
HP Rating
@ 460 V
@ 460 V
Output Filter Part No.
(Separate Mounting)
(Separate Mounting)
Separately Mounted
Engineered Option
Engineered Option
1–2
KLCUL4A1
E402
3
KLCUL6A1
E402
5
KLCUL8A1
E402
7.5
KLCUL12A1
E402
10
KLCUL16A1
E402
15
KLCUL25A1
E402
20–25
KLCUL35A1
E402
30
KLCUL45A1
E402
40
KLCUL55A1
E402
50-60
KLCUL80A2
E402
75
KLCUL110A2
E402
100
KLCUL130A2
E402
125
KLCUL160A2
E402
150
KLCUL200A3
E402
200
KLCUL250A3
E402
250
KLCUL300A3
E402
300
KLCUL360A3
E402
350
KLCUL420A3
E402
400
KLCUL480A3
E402
450–500
KLCUL600A3
E402