Branch Circuit Short Circuit Protection; Fuse Type; Circuit Breaker Type - YASKAWA P7 User Manual

Branch Circuit Short Circuit Protection

The following peripheral devices may be required between the AC main circuit power supply and the Drive input
terminals L1(R), L2(S), and L3(T). Refer to applicable codes to determine the devices necessary for a given
installation. Use Table E.1 or E.2 when selecting fuses and circuit breakers per the NEC. When selecting
semiconductor fuses to provide Drive input I
short circuit protection requirements, select one of the fuses in Table E.3 or E.4.

Fuse Type:

Circuit Breaker Type:

Table E.1 Recommended Fuse and Circuit Breaker Ratings per NEC (208-240Vac Input)
Model
Hp
CIMR-P7U
20P4 0.5/0.75
20P7 1
21P5 1.5/2
22P2 3
23P7 5
25P5 7.5
27P5 10
2011 15
20
2015
25
2018
30
2022
40
2030
50
2037
60
2045
75
2055
75/100
2075
2090 125
2110 150
*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.
2
t protection and comply with UL, CSA, NEC, and CEC branch circuit
UL designated Time-Delay or Non-Time-Delay Fuse
Class:
Designators (typical):KTK, FNQ, FRS, LPJ, LPS, JKS, JJN, or JJS
Voltage Rating:
Inverse Time (MCCB) or Instantaneous Trip (MCP)
Voltage Rating: 600V
Input Output
Amps Amps
*1 *1
(Continuous (Continuous
Rating) Rating)
4.3 3.6
5.5 4.6
9.4 7.8
13 10.8
20 16.8
24 23
37 31
53 46.2
70 59.4
89 74.8
98 88
120 115
180 162
212 192
237 215
350 312
396 360
457 415
Peripheral Devices E - 2
CC, J, T, RK1 or RK5
250V for Drives with 208-240V input
600V for Drives with 480V input
Fuse
Selection Criteria
Maximum
Time-Delay Non-Time-Delay
Fuse Rating (A) Fuse Rating (A)
6
8
15
20
30
40
60
80
110
125
150
200
250
300
350
450
600
700
Circuit Breaker
Selection Criteria
Maximum
Maximum CB
Rating (A)
12
12
15
20
30
50
80
80
125
150
150
200
250
300
350
450
600
700
15
15
15
20
35
45
80
100
125
150
175
225
300
350
450
600
700
900