Rockwell Automation Liqui-Flo 1.5 AC Power Modules V1.2 User Manual

Page 28

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LiquiFlo 1.5 AC Power Modules, Hardware Reference Version 1.2

3.2.1.4 Recommended Motor Lead Lengths

Motor lead lengths can total up to 76 meters (250 feet).

3.2.2 Selecting Input Line Branch Circuit Fuses

Input line branch circuit protection fuses must be used to protect the input power lines.
See figures 5.1 and 5.2 for typical AC input/output connection diagrams..
Recommended fuse values are shown in table 3.6. The input fuse ratings listed in
table 3.6 are applicable for one drive per branch circuit. No other load may be applied
to that fused circuit.

3.2.3 Verifying Power Module Output Current Rating Is Greater Than

Motor Full Load Amps

Verify that the LiquiFlo output current rating is equal to or greater than the motor’s full
load current (amps). Table 2.1 lists the output current values.

!

ATTENTION: Most codes require that upstream branch circuit protection
be provided to protect input power wiring. Install the fuses recommended
in table 3.6. Do not exceed the fuse ratings. Failure to observe this
precaution could result in damage to, or destruction of, the equipment.

Table 3.6 – AC Input Line Fuse and Circuit Breaker Selection Values

Model Number

Input Voltage

(+/-10%)

Fuse Rating

Motor Circuit Protector

or Circuit Breaker

LF150414R4

LF150414W4

380-480 VAC

600 A

1

1

Recommended fuse type: UL Class J, 600 V, time-delay, or equivalent.

600 A

LF150500R4

LF150500W4

380-480 VAC

750 A

2

2

Recommended fuse type: UL Class L, 600 V, time-delay, or equivalent.

800 A

LF150643R4

LF150643W4

380-480 VAC

1000 A

2

1000 A

LF151200R4

LF151200W4

380-480 VAC

1600 A

2

1500 A

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