Branch Circuit Short Circuit Protection - Emerson EVH Series Installation Manual

Branch circuit short circuit protection

Integral solid-state short circuit protection does not provide branch circuit protection. Branch circuit protection
must be provided in accordance with the National Electrical Code and any additional local codes.
480 V Drive Series are suitable for use on a circuit capable of delivering not more than 100,000 rms symmetrical
amperes, 500 volts maximum, when protected by UL and cUL/CSA Listed devices mentioned below with an
A.I.C. rating of 100 kA minimum.
Class RK5, Class J, Class T or equivalent fuses
•
Thermal-magnetic circuit breakers
•
Magnetic only circuit breakers
•
Refer to the following information for recommended ratings.
Protection ratings—480 V drive series
Frame
EVH Base Model
size
1
EVH-3443D3-R.....
EVH-3444D3-R.....
EVH-3445D6-R.....
EVH-3447D6-R.....
EVH-344009-R.....
EVH-344012-R.....
EVH-344016-R.....
2
EVH-344023-R.....
EVH-344031-R.....
EVH-344038-R.....
3
EVH-344046-R.....
EVH-344061-R.....
EVH-344072-R.....
4
EVH-344087-R...
EVH-344105-R.....
EVH-344140-R.....
5
EVH-344170-R.....
EVH-344205-R.....
EVH-344261-R.....
6
EVH-344310-R.....
Notes: These ratings are based off the largest wire size designed for the given Frame. Please verify your
protection protects your wire sizing.
Maximum thermal-
Maximum magnetic breaker
fuse rating
rating
600 V, 10 A 480 V, 15 A
600 V, 10 A 480 V, 15 A
600 V, 15 A 480 V, 15 A
600 V, 15 A 480 V, 15 A
600 V, 15 A 480 V, 15 A
600 V, 15 A 480 V, 15 A
600 V, 35 A 480 V, 35 A
600 V, 60 A 480 V, 60 A
600 V, 80 A 480 V, 80 A
600 V, 90 A 480 V, 90 A
600 V, 100 480 V, 100 A
600 V, 150 480 V, 150 A
600 V, 175 480 V, 175 A
600 V, 200 480 V, 200 A
600 V, 300 480 V, 300 A
600 V, 350 480 V, 350 A
600 V, 400 480 V, 400 A
600 V, 400 480 V, 400 A
600 V, 400 480 V, 400 A
600 V, 400 480 V, 400 A
Magnetic only circuit breakers
Maximum magnetic
breaker rating
480 V, 7 A
480 V, 15 A
480 V, 15 A
480 V, 25 A
480 V, 25 A
480 V, 25 A
480 V, 50 A
480 V, 70 A
480 V, 100 A
480 V, 100 A
480 V, 100 A
480 V, 100 A
480 V, 250 A
480 V, 250 A
480 V, 400 A
480 V, 400 A
480 V, 400 A
480 V, 400 A
480 V, 400 A
480 V, 400 A
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