12 UL Standards
80 YASKAWA TOEPC7106171FD FP605 DRIVE INSTALLATION & PRIMARY OPERATION
■ UL Compliance
Install one of the types of short circuit protection devices in Table 12.2 or Table 12.3 to comply with UL 508C.
Semiconductor protective type fuses are recommended, but the tables also show alternative short circuit protection
devices. Make sure that you install this product in a location with Overvoltage Category III and pollution degree 2 or
less.
Molded Case Circuit Breaker (MCCB) Ratings
• Maximum MCCB rating is 250% of the drive full load output amp (FLA) rating for models 2011 to 2273 and 4005
to 4302.
• Maximum MCCB rating is 200% of the drive full load output amp (FLA) rating for models 2343, 2396, and 4361 to
4720.
• When you use MCCBs you must mount the drive in a ventilated enclosure according to the minimum enclosure
volume specified in this document.
Note:
When you use MCCBs, current limiting type are recommended, but not required.
Semiconductor Fuses and Motor Circuit Protectors (MCPs)
When you use semiconductor fuses or Motor Circuit Protectors (MCPs) for drive protection, you must mount them in
the same enclosure with the drive.
Non-Semiconductor Fuse Ratings
• Maximum CC, J, or T fuse rating is 175% of the drive full load output amp (FLA) rating for models 2011 to 2396
and 4005 to 4302.
• Maximum J or T fuse rating is 175% of the drive full load output amp (FLA) rating and enclosed into a ventilated
enclosure with a minimum enclosure volume as described in this document for models 4361 to 4720.
Short Circuit Current Rating (SCCR)
The maximum SCCR provided by the drive with approved protection device listed in this document is 100,000 RMS
symmetrical amps.
Electric Code Compliance
The user must provide short circuit protection to protect input branch circuits as specified by the National Electric
Code (NEC), the Canadian Electric Code, Part 1 (CEC), and local codes.
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