Branch Circuit Overload Protection - YASKAWA E7N Technical Manual

Table E.2 Recommended Fuse and Circuit Breaker Ratings per NEC (480 Vac Input)
Model
Hp
CIMR-E7U
40P4 0.5/0.75
40P7 1
41P5 1.5/2
42P2 3
43P7 5
44P0 -
45P5 7.5
47P5 10
4011 15
4011 20
4015 25
4018 30
4022 -
4030 40
4030 50
*1 Input and Output Amps are based on the Normal Duty (ND) current rating. Consult the Specification section for details on the Heavy Duty (HD) and Normal Duty (ND) ratings.

Branch Circuit Overload Protection

All models have built-in UL evaluated motor overload protection. Motor overload protection is also provided in
accordance with the NEC and CEC. Additional branch circuit overload protection is not required for single motor
applications.
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Input Output
Amps Amps
*1 *1
(Continuous (Continuous
Rating) Rating)
2.2 1.8
2.5 2.1
4.4 3.7
6.4 5.3
9 7.6
10.4 8.7
15 12.5
20 17
33 27
33 27
40 34
48 40
55 50.4
74 67.2
74 67.2
Peripheral Devices E - 3
Fuse
Selection Criteria
Maximum Maximum
Time-Delay Non-Time-Delay
Fuse Rating (A) Fuse Rating (A)
4 10
4 10
8 12
10 15
15 20
15 30
25 30
30 30
45 50
45 50
60 70
70 80
80 70
100 100
100 100
Circuit Breaker
Selection Criteria
Maximum CB
Rating (A)
15
15
15
15
20
20
30
40
60
60
80
90
100
125
125