4 selecting input line branch circuit protection – Rockwell Automation SP600 User Manual Version 3.0 User Manual

Page 57

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Wiring Requirements for the Drive

4-9

4.4

Selecting Input Line Branch Circuit
Protection

Input line branch circuit protection must be provided to protect the
input power lines. Table 4.4 provides drive ratings (including
continuous, 1 minute and 3 second) and recommended AC line
input fuse and circuit breaker information. Both types of short circuit
protection are acceptable for UL and IEC requirements. Sizes listed
are the recommended sizes based on 40 degree C and the U.S.
N.E.C. Other country, state or local codes may require different
ratings.

Fusing

If fuses are chosen as the desired protection method, refer to the
recommended types listed below. If available amp ratings do not
match the tables provided, the closest fuse rating that exceeds the
drive rating should be chosen.

IEC – BS88 (British Standard) Parts 1 & 2, EN60269-1, Parts 1 & 2,
type gG or equivalent should be used.

UL – UL Class CC, T, RK1 or J must be used.

Circuit Breakers

The circuit breaker listings in Table 4.4 are for inverse time circuit
breakers.

IEC and UL – devices are acceptable for IEC and UL installations.

4.5

Verifying Power Module Output
Current Rating is Greater than Motor
Full Load Amps

Verify that the SP600 AC drive output current rating is 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 or circuit breakers recommended in table 4.4.
Do not exceed the fuse ratings. Failure to observe this
precaution could result in damage to, or destruction of, the
equipment.

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