
4 Branch Circuit Protection
10
YASKAWA America, Inc.
PL.GA500.01 YASKAWA AC Drive - V1000 to GA500 Transition Guide
GA500 Branch Circuit Protection
Use branch circuit protection to protect against short circuits and to maintain compliance with UL61800-5-1. Yaskawa
recommends connecting semiconductor protection fuses on the input side for branch circuit protection.
• 240 V model fuse selection:
Use the fuses specified in this document or in the drive product instructions to prepare the drive for use on a circuit that
supplies not more than 31,000 Amps RMS and not more than 240 Vac when there is a short circuit in the power supply.
• 480 V model fuse selection:
Use the fuses specified in this document or in the drive product instructions to prepare the drive for use on a circuit that
supplies not more than 31,000 Amps RMS and not more than 480 Vac when there is a short circuit in the power supply.
The built-in short circuit protection of the drive does not provide branch circuit protection. The user must provide branch
circuit protection as specified by the National Electric Code (NEC), the Canadian Electric Code, Part I (CEC), and local
codes.
Table 8 GA500 Branch Circuit Protection
GA500 Catalog Code
GA50U_
Fuse Type: Class J, T, and CC Time-delay
Rated Current (A)
Fuse Type: Semiconductor Fuse, Fast Acting
(Manufacturer: EATON/Bussmann)
Model
Amp
Single-Phase 240 V
B001
2
FWH-25A14F
25
B002
3.5
FWH-25A14F
25
B004
9
FWH-60B
60
B006
15
FWH-80B
80
B010
20
FWH-100B
100
B012
30
FWH-125B
125
B018
40
FWH-150B
150
Three-Phase 240 V
2001
3
FWH-25A14F
25
2002
3.5
FWH-25A14F
25
2004
6
FWH-25A14F
25
2006
10
FWH-25A14F
25
2010
15
FWH-70B
70
2012
20
FWH-70B
70
2021
35
FWH-90B
90
2030
50
FWH-100B
100
2042
70
FWH-150B
150
2056
90
FWH-200B
200
2070
110
FWH-200B
200
2082
125
FWH-225A
225
Three-Phase 480 V
4001
3
FWH-40B
40
4002
3.5
FWH-40B
40
4004
7
FWH-50B
50
4005
9
FWH-70B
70
4007
12
FWH-70B
70
4009
15
FWH-90B
90
4012
20
FWH-90B
90
4018
30
FWH-80B
80
4023
40
FWH-100B
100