3.15 Protect the Drive during Failures
112 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual
3.15 Protect the Drive during Failures
Use branch circuit protection to protect against short circuits and to maintain compliance with UL61800-5-1. The
manufacturer recommends connecting semiconductor protection fuses on the input side for branch circuit
protection.
WARNING! Electrical Shock Hazard. Do not immediately energize the drive or operate peripheral devices after the drive blows
a fuse or trips an RCM/RCD. 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. Contact the manufacturer before
energizing the drive or peripheral devices if the cause is not known. Failure to obey can cause death or serious injury and
damage to the drive.
◆ Branch Circuit Protection for 200 V Class (ND)
Use the fuses specified in this document to prepare the drive for use on a circuit that supplies not more than
100,000 RMS symmetrical amperes and 240 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 3.17 Factory-Recommended Branch Circuit Protection: 200 V Class (ND)
Drive Model
Maximum Applicable Motor Output
kW (HP)
Input Current Rating
A
Semiconductor Protection Fuse
Rated Current
Manufacturer: EATON/Bussmann
2004 0.75 (0.75) 4.8 FWH-45B
2006 1.1 (1.5) 6.7 FWH-45B
2010 2.2 (3) 12.7 FWH-45B
2012 3 (4) 17 FWH-50B
2018 3.7 (5) 20.7 FWH-80B
2021 5.5 (7.5) 30 FWH-80B
2030 7.5 (10) 40.3 FWH-125B
2042 11 (15) 52 FWH-150B
2056 15 (20) 78.4 FWH-200B
2070 18.5 (25) 96 FWH-225A
2082 22 (30) 114
FWH-225A
FWH-250A
*1
2110 30 (40) 111
FWH-225A
FWH-250A
*1
2138 37 (50) 136
FWH-275A
FWH-300A
*1
2169 45 (60) 164
FWH-275A
FWH-350A
*1
2211 55 (75) 200
FWH-325A
FWH-450A
*1
2257 75 (100) 271 FWH-600A
2313 90 (125) 324 FWH-800A
2360 110 (150) 394 FWH-1000A
2415 - - -
*1 A fuse with a large rated current for applications with repeated loads is recommended.
◆ Branch Circuit Protection for 200 V Class (HD)
Use the fuses specified in this document to prepare the drive for use on a circuit that supplies not more than
100,000 RMS symmetrical amperes and 240 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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