YASKAWA GA800 Series, Technical Reference

Page: 124 / 1016

3.15 Branch Circuit Protection
124 YASKAWA SIEPC71061737B GA800 Drive Technical Reference
3.15 Branch Circuit Protection
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Factory-Recommended Branch Circuit Protection for UL Listing
Yaskawa recommends installing one of the following types of branch circuit protection to maintain compliance with
UL 508C. Semiconductor protective type fuses are preferred. Alternate branch circuit protection devices are also
listed. Maximum Time Delay fuse is 175% of drive full load output amps (FLA). This covers any Class CC, J, or T
class fuse. Refer to
200 V Class on page 124 and 400 V Class on page 125 for the recommended fuses.
WARNING! Electrical Shock Hazard. After the drive blows a fuse or trips a GFCI, do not immediately energize the drive or operate
peripheral devices. Wait for the time specified on the warning label at a minimum and make sure that all indicators are OFF. Then
check the wiring and peripheral device ratings to find the cause of the problem. If you do not know the cause of the problem, contact
Yaskawa before you energize the drive or peripheral devices. If you do not fix the problem before you operate the drive or peripheral
devices, it can cause serious injury or death.
• 200 V class
Use the fuses specified in this document to prepare the drive for use on a circuit that supplies not more than 100,000
RMS and not more than 240 Vac when there is a short circuit in the power supply.
• 400 V class
Use the fuses specified in this document to prepare the drive for use on a circuit that supplies not more than 100,000
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.
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200 V Class
Table 3.19 Factory Recommended Fuses for 200 V Class
Drive Model
Semiconductor Fuse
Manufacturer: EATON/Bussmann
Alternate Time-Delay
Class CC, J, or T
*1
Maximum Amp Rating
(Maximum SCCR (kA))
2004 FWH-45B 6 (65)
2006 FWH-45B 10 (65)
2008 FWH-45B 12 (65)
2010 FWH-45B 15 (65)
2012
FWH-50B
FWH-80B
*2
20 (65)
2018
FWH-80B
FWH-100B
*2
30 (65)
2021
FWH-80B
FWH-100B
*2
35 (65)
2030 FWH-125B 50 (100)
2042 FWH-150B 70 (100)
2056 FWH-200B 90 (100)
2070 FWH-225A 110 (100)
2082
FWH-225A
FWH-250A
*2
125 (100)
2110
FWH-225A
FWH-250A
*2
175 (100)
2138
FWH-275A
FWH-300A
*2
225 (100)
2169
FWH-275A
FWH-350A
*2
250 (100)
2211
FWH-325A
FWH-450A
*2
350 (100)