Fuse and circuit breaker ratings, Input device requirements fusing, Circuit breakers – Rockwell Automation 20G PowerFlex 755 IP00 NEMA/UL Open Drive - Frames 8-10 User Manual

Page 67

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Rockwell Automation Publication 750-IN020C-EN-P - May 2012

67

PowerFlex 755 IP00, NEMA/UL Open Type Drive

Fuse and Circuit Breaker
Ratings

The tables on pages

68

74

provide drive ratings (including continuous, 1

minute and 3 second) and recommended AC line input fuse and circuit breaker
information. 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. In
addition, Frame 8 and larger drives include AC line fuses (with blown fuse
indicators) to provide drive short circuit protection.

Input Device Requirements

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 T, J or L should be used.

Circuit Breakers

The “non-fuse” listings in the following tables include both circuit breakers
(inverse time or instantaneous trip). If one of these is chosen as the desired
protection method

, the following requirements apply.

• IEC and UL – Both types of devices are acceptable for IEC and UL

installations.

Frames

Enclosure
Catalog Code

Installation Type

UL Certification Required

UL Certification
Not Required

8…10

T

Installed inside of
any cabinet.

All devices listed on pages

68

,

70

,

72

and

74

are acceptable.

All devices listed on pages

68

through

74

are acceptable.

(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.

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