Non-Fuse Circuit Breaker; Fuse Specification Chart - Delta IED-S Series User Manual

6-2 Non-fuse Circuit Breaker

Comply with the UL standard: Per UL 508, paragraph 45.8.4, part a. The rated current of a breaker
shall be two to four times the maximum rated input current of the AC motor drive.
Single-phase / Three-phase
Model
IED022S21A*
IED037S21A*
IED055S23A
IED075S23A
IED110S23A
IED150S23A
IED185S23A
IED220S23A
*IED022S21A and IED037S21A are single-phase models.

6-3 Fuse Specification Chart

 Fuse specifications lower than the table below are allowed.
 For installation in the United States, branch circuit protection must be provided in accordance
with the National Electrical Code (NEC) and any applicable local codes. Use UL classified fuses
to fulfill this requirement.
 For installation in Canada, branch circuit protection must be provided in accordance with
Canadian Electrical Code and any applicable provincial codes. Use UL classified fuses to fulfill
this requirement.
Model
IED022S21A
IED037S21A
IED055S23A
IED075S23A
IED110S23A
IED150S23A
IED185S23A
IED220S23A
IED055S43A
IED075S43A
IED110S43A
IED150S43A
IED185S43A
IED220S43A
IED300S43A
IED370S43A
IED450S43A
IED550S43A
IED750S43A
Breaker Rated Input
Recommended Current (A)
50
75
50
60
100
125
150
175
Input Current I (A)
26
37
23
30
47
56
73
90
14
17
24
30
37
47
58
80
100
128
165
Chapter 6 Optional Accessories | IED-S
Model
IED055S43A
IED075S43A
IED110S43A
IED150S43A
IED185S43A
IED220S43A
IED300S43A
IED370S43A
IED450S43A
IED550S43A
IED750S43A
Line Fuse
I (A) Bussmann P/N
60
90
60
80
125
150
175
225
40
45
60
80
90
110
150
200
250
300
400
6-7
Three-phase
Breaker Rated Input
Recommended Current (A)
35
40
50
60
75
100
125
150
200
250
350
JJN-60
JJN-90
JJN-60
JJN-80
JJN-125
JJN-150
JJN-175
JJN-225
JJS-40
JJS-45
JJS-60
JJS-80
JJS-90
JJS-110
JJS-150
JJS-200
JJS-250
JJS-300
JJS-400