Rockwell Automation 20D PowerFlex 700 Installation Instructions - Frames 7…10 - Manual (Page 41)

Rockwell Automation Publication 20B-IN014H-EN-P - June 2013 41
PowerFlex 700 Adjustable Frequency AC Drive – Frames 7…10
Motor Overload Protection
Class 10 motor overload protection according to NEC article 430 and motor
over-temperature protection according to NEC article 430.126 (A)(2). UL 508C
File E59272.
Drive, Fuse & Circuit Breaker Ratings
The PowerFlex 700 can be installed with input fuses or an input circuit breaker.
National and local industrial safety regulations and/or electrical codes can
determine additional requirements for these installations.
The tables on the following pages provide recommended AC line input fuse and
circuit breaker information. See Fusing and Circuit Breakers below for UL and
IEC requirements. Sizes listed are the recommended sizes based on 40 °C (104
°F) and the U.S. NEC. Other country, state, or local codes can require different
ratings. Tables with DC link fuse recommendations for DC input drives are also
provided.
Fusing
The recommended fuse types are listed below. If available current ratings do not
match those listed in the tables provided, choose the next higher fuse rating.
• IEC – BS88 (British Standard) Parts 1 & 2, EN60269-1, Parts 1 & 2
(1)
,
type gG or equivalent must be used.
• UL Class T, RK1, J, or L must be used.
Circuit Breakers
The “non-fuse” listings in the following tables include inverse time circuit
breakers and instantaneous trip circuit breakers (motor circuit protectors). If one
of these is chosen as the desired protection method, the following requirements
apply:
• IEC – Both types of circuit breakers are acceptable for IEC installations.
• UL - Only inverse time circuit breakers are acceptable for UL installations.
ATTENTION: The PowerFlex 700 does not provide branch short circuit
protection. Specifications for the recommended fuse or circuit breaker to
provide protection against short circuits are provided on pages
42 through 44 .
(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.