12 UL Standards
YASKAWA TOEPC71061737B GA800 Drive Installation & Primary Operation 79
Drive Model
Semiconductor Fuse
Manufacturer: EATON/Bussmann
Alternate Time-Delay
Class CC, J, or T
*1
Maximum Amp Rating
(Maximum SCCR (kA))
4414 FWH-1000A Not applicable
4477 FWH-1200A Not applicable
4568 FWH-1200A Not applicable
4605 FWH-1400A Not applicable
4720 FWH-1400A Not applicable
*1 Class T fuses are fast-acting (non-time delay only).
*2 Yaskawa recommends a fuse with a larger rated current for cyclical load applications that frequently approach 150 % overload.
◆ UL Standards Compliance for DC Power Supply Input
To comply with UL Standards, install a fuse for the DC power supply input.
Figure 12.2 shows a wiring example for a DC power supply that has two drives connected in parallel.
Figure 12.2 Wiring Example for DC Power Supply Input
WARNING
Electrical Shock Hazard. Do not ground the main circuit bus. Incorrect wiring can cause serious injury or death.
Note:
• Install a fuse for each drive when operating more than one drive. If one fuse opens, replace all fuses.
Refer to Table 12.4 and Table 12.5 for the recommended fuses.
Table 12.4 Recommended DC Input Fuse (Three-Phase 200 V Class)
Drive Model
Fuse
Manufacturer: Bussmann
Model Quantity
2004
FWH-45B 2
2006
2008
2010
2012 FWH-50B, or FWH-80B
*1
, or FWH-100B
*1
2
2018
FWH-80B, or FWH-100B
*1
2
2021
2030 FWH-125B 2
2042 FWH-150B 2
2056 FWH-200B 2
2070 FWH-225A 2
2082
FWH-250A 2
2110