4 selecting input line branch circuit protection – Rockwell Automation SP600 AC Drive User Manual Version 1.0 User Manual

Page 63

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Wiring Requirements for the Drive

4-9

4.4

Selecting Input Line Branch Circuit
Protection

Input line branch circuit protection fuses or circuit breakers must be
used to protect the input power lines. Tables 4.5, 4.6, and 4.7
provide recommended AC line input fuse and circuit breaker
information. Both types of short circuit protection are acceptable for
UL and IEC requirements. The input fuse or circuit breaker ratings
listed in the tables are applicable for one drive per branch circuit. No
other load may be applied to that circuit. Sizes listed are the
recommended sizes based on 40° 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

1

, EN60269-1, Parts 1

& 2, type gG or equivalent should be used.

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

2

Circuit Breakers

The circuit breakers listed in tables 4.5 through 4.7 are for inverse
time circuit breakers.

!

ATTENTION: Most codes require that upstream branch
circuit protection be provided to protect input power wiring.
Install the fuses or circuit breakers recommended in tables 4.5
through 4.7. Do not exceed the fuse or circuit breaker ratings.
Failure to observe this precaution could result in a dangerous
condition and/or damage to equipment.

1

Typical designations include, but may not be limited to the following: Parts
1 & 2: AC, AD, BC, BD, CD, DD, ED, EFS, EF, FF, FG, GF, GG, GH.

2

Typical designations include:Type CC - KTK-R, FNQ-R;
Type J - JKS, LPJ; Type T - JJS, JJN

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