YASKAWA GA800

Standards Compliance
5
5.3 UL Standards
YASKAWA SIEPC71061737D GA800 Drive Technical Reference 289
Model
Recomm. Gauge (AWG, kcmil)
Crimp Terminal
Model
*1
R/L1, R1/L11
S/L2, S1/L21
T/L3, T1/L31
U/T1
V/T2
W/T3
- +3
T568
3/0 × 2 × 2 - 3/0 × 4P 3/0 × 4P - S3/0-12R-5
- 4/0 × 4P - - - S4/0-12R-5
T605
- - - - 2/0 S2/0-12R-X
4/0 × 2 × 2 - 4/0 × 4P 4/0 × 4P - S4/0-12R-5
- 300 × 4P - - -
LCA300-12-X
LCAX300-12-6
T720
- - - - 2/0 S2/0-12R-X
- - 4/0 × 4P 4/0 × 4P - S4/0-12R-5
250 × 2 × 2 - - - - S250-12R-5
- 300 × 4P - - -
LCA300-12-X
LCAX300-12-6
*1 For use with PANDUIT Corp. heat-shrinkable tubing HSTT-series or an equivalent UL-recognized heat-shrinkable tubing rated 600 V
minimum.
■ UL Compliance
Install one of the types of short circuit protection devices to comply with UL 508C. Yaskawa recommends connecting
semiconductor protection fuses. Refer to Three-Phase 200 V Class on page 290, Three-Phase 400 V Class on page
291, and 6-Phase/12-Pulse 400 V Class on page 292 for recommended fuses and alternative short circuit protection
devices.
• Semiconductor Protection Fuse
– When you use semiconductor fuses as UL listed drive protection, the drives and fuses must be in the same
enclosure.
– Where multiple semiconductor fuse ratings are listed for a single drive, Yaskawa recommends a fuse with a large
rated current for applications with repeated loads of approximately 150%. You can use smaller semiconductor
fuses (than what is listed) of the same manufacturer and series. Please note that this can decrease the life of the
fuses.
• Non-Semiconductor Fuse
– Maximum CC, J, T, RK1 or RK5 fuse rating is 175% of the Normal-Duty drive full load output amp (FLA)
rating.
– When you use class CC, J, or T fuses as UL listed drive protection, models 4371 and larger have the same
minimum enclosure volume requirements as MCCBs.
– Install Class RK1 or RK5 fuses into a ventilated enclosure with a minimum enclosure volume shown in Table
5.20, Table 5.21, and Table 5.22.
• Molded-Case Circuit Breaker (MCCB)
– Maximum MCCB rating is 200% of the Normal-Duty drive full load output amp (FLA) rating.
– When you use MCCBs, install the drive into a ventilated enclosure with a minimum enclosure volume shown in
Table 5.20, Table 5.21, and Table 5.22.
Note:
Yaskawa recommends current limiting MCCBs.
• Short Circuit Current Rating (SCCR)
The maximum SCCR provided by drive and fuse, or drive and MCCB combinations in this document, is 100,000
RMS symmetrical amps.
– 240 V Cass drives: Use the protection 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.
– 480 V Class drives: Use the protection 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.