Yaskawa AC Drive Z1000 HVAC - Manual (Page 40)

i.5 UL/cUL Standards
u UL Standards Compliance
The UL/cUL mark applies to products in the United States and Canada. It indicates that UL has performed product testing and
evaluation, and determined that their stringent standards for product safety have been met. For a product to receive UL
certification, all components inside that product must also receive UL certification.
Figure i.24 UL/cUL Mark
This drive is tested in accordance with UL standard UL508C and complies with UL requirements. The conditions described
below must be met to maintain compliance when using this drive in combination with other equipment:
n Installation Area
Do not install the drive to an area greater than pollution degree 2 (UL standard).
n Ambient Temperature
IP20/NEMA Type 1 Enclosure, External Heatsink (2A0011 to 2A0073 and 4A0005 to 4A0302): -10 to +40 °C (14 to 104 °F)
IP00/Open Type Enclosure (2A0343 and 2A0396 and 4A0361 to 4A0590): -10 to +50 °C (14 to 122 °F)
n Main Circuit Terminal Wiring
Yaskawa recommends using closed-loop crimp terminals on all drive models. UL/cUL approval requires the use of UL Listed
closed-loop crimp terminals when wiring the drive main circuit terminals on models CIMR-Zo2A0031 to 2A0396 and 4A0034
to 4A0590. Use only the tools recommended by the terminal manufacturer for crimping. Refer to Closed-Loop Crimp
Terminal Size on page 23 for closed-loop crimp terminal recommendations.
The wire gauges listed in the following tables are Yaskawa recommendations. Refer to NEC table 310-16 for proper wire
gauge selection for terminals -M, +M, -1, +3, and ground.
Wire Gauges and Tightening Torques
Refer to Wire Gauges and Tightening Torque on page 19 .
Closed-Loop Crimp Terminal Recommendations
Refer to Closed-Loop Crimp Terminal Recommendations on page 23 .
Factory Recommended Branch Circuit Protection
WARNING! Fire Hazard. Install adequate branch circuit protection according to applicable local codes and this manual. Failure to comply
could result in fire and damage to the drive or injury to personnel. The device is suitable for use on a circuit capable of delivering not more
than 100,000 RMS symmetrical amperes, 240 Vac (200 V class) and 480 Vac (400 V class), when protected by branch circuit protection
devices specified in this manual.
Branch circuit protection shall be provided by any of the following: Non-time delay Class J, T, or CC fuses sized at 300% of the drive input
rating, or Time delay Class J, T, or CC fuses sized at 175% of the drive input rating, or MCCB sized at 200% maximum of the drive input
rating.
NOTICE: If a fuse is blown or a Ground Fault Circuit Interrupter (GFCI) is tripped, check the wiring and the selection of the peripheral devices.
Check the wiring and the selection of peripheral devices to identify the cause. Contact Yaskawa before restarting the drive or the peripheral
devices if the cause cannot be identified.
Yaskawa recommends installing one of the following types of branch circuit protection to maintain compliance with UL508C.
Semiconductor protective type fuses are preferred. Alternate branch circuit protection devices are also listed in the tables
below.
i.5 UL/cUL Standards
40 YASKAWA ELECTRIC TOEP YAIZ1U 01A YASKAWA AC Drive – Z1000 Safety Precautions