Milnor Q4G Series, Схемы/Электрические компоненты, Страница: 9 / 60

Ê Wire Sizing
Size wire as follows:
1. Except as noted in item 2, below, size wire per the external fuse and wire size table in the schematic manual,
for runs up to 50 feet (15 meters). Use next larger size for runs 50 to 100 feet (15 to 30 meters). Use wire
two sizes larger for runs greater than 100 feet (30 meters).
2. If an inverse circuit breaker is to be used and local code requires a larger wire size than called for by the exter-
nal fuse and wire size table, abide by the local code.
UNSAFE OPERATION AND MACHINE DAMAGE HAZARDS—Correct wire size must be
used. Smaller wire—even though its current-carrying capacity may be greater than the re-
quired fuse—may cause voltage drops, thereby reducing starting torque. (A 5% voltage
drop causes motor to produce only 90% of its rated torque.) The voltage drop is greatest
the instant the motor is energized, thus when highest torque is required.
☞
Never use wire of a smaller size than called for by the external fuse and wire size table
in the schematic manual.
Wire size shown in the external fuse and wire size table may sometimes appear to be too
small for the fuse/circuit breaker shown. However, the listed wire size is acceptable for the
load imposed by the machine and commensurate with the National Electric Code.
FUSE/CIRCUIT BREAKER AND WIRE SIZING MSSM0118AE/9330BV (2 of 2)
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