Rockwell Automation 20M LPM15 Liquid-Cooled Adjustable Frequency AC Drive FRN 2.xxx - Manual (Page 25)

Installation/Wiring 1-13
Selecting Input Line Branch Circuit Fuses
Input line branch circuit protection fuses must be used to protect the input
power lines. See
Figure 1.9 and Figure 1.10 for typical AC input/output
connection diagrams. Recommended fuse values are shown in Table 1.C .
The listed input fuse ratings are applicable for one drive per branch circuit.
No other load may be applied to that fused circuit.
Table 1.C AC Input Line Fuse and Circuit Breaker Selection Values
Fuses and Circuit Breakers The LPM15 can be installed with either input fuses or an input circuit
breaker. National and local industrial safety regulations and/or electrical
codes may determine additional requirements for these installations. Refer
to
Table 1.C for recommended fuses/circuit breakers.
Mounting the Drive,
Determining Wire Routing,
and Grounding This chapter shows how to mount the drive and properly ground it. Also
described is the wiring to be routed in and out of the drive.
Lifting and Mounting the Drive
Use the following procedure to lift the LPM15 drive and mount it in the
required enclosure:
!
ATTENTION: Most codes require that upstream branch circuit
protection be provided to protect input power wiring. Install the
fuses recommended in
Table 1.C . Do not exceed the fuse
ratings. Failure to observe this precaution could result in
damage to, or destruction of, the equipment.
LPM15 Drive
Catalog Number
(positions 1-7 only)
Input Voltage
(+/-10%)
Fuse Rating
Motor Circuit Protector
or Circuit Breaker
20MD414 380-480 VAC 600 A
(1)
(1) Recommended fuse type: UL Class J, 600 V, time-delay, or equivalent.
600 A
20MD500 380-480 VAC 750 A
(2)
(2) Recommended fuse type: UL Class L, 600 V, time-delay, or equivalent.
800 A
20MD643 380-480 VAC 1000 A (1) 1000 A
20MD1K2 380-480 VAC 1600 A
(2)
1500 A
!
ATTENTION: The LPM15 does not provide branch short
circuit protection. Specifications for the recommended fuse or
circuit breaker to provide protection against short circuits are
provided in
Table 1.C .