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316 HVAC Drive H300
Issue Number: 3
14 UL listing information
14.1 UL file reference
All products covered by this Guide are UL Listed to both Canadian and US requirements. The UL file reference is: NMMS/7.E171230.
Products that incorporate the Safe Torque Off function have been investigated by UL. The UL file reference is: FSPC.E171230.
14.2 Option modules, kits and accessories
All Option Modules, Control Pods and Installation Kits supplied by Nidec Industrial Automation for use with these drives are UL Listed.
14.3 Enclosure ratings
Drives are UL Open Type as supplied.
Drives fitted with a conduit box are UL Type 1.
Drives that are capable of through-hole mounting are UL Type 12 when installed with the high-IP insert (where provided), and the Type 12 sealing kit
to prevent ingress of dust and water.
Remote Keypads are UL Type 12.
14.4 Mounting
Drives can be mounted directly onto a vertical surface. This is known as 'surface' or 'standard' mounting. Refer to section 3.5.1 Surface mounting on
page 34 for further information.
Drives can be installed side by side with recommended spacing between them. This is known as 'bookcase' mounting. Refer to section 3.6 Enclosure
for standard drives on page 48 for further information.
Drives fitted with a conduit box can be mounted directly onto a wall or other vertical surface without additional protection. Suitable conduit boxes are
available from Nidec Industrial Automation.
Some drives may be through-hole mounted. Mounting brackets and sealing kits are available from Nidec Industrial Automation. Refer to section
3.5.2 Through-panel mounting on page 41 for further information.
Remote Keypads can be mounted on the outside of a UL Type 12 enclosure. A sealing and mounting kit is provided with the keypad.
14.5 Environment
Drives must be installed in a Pollution Degree 2 environment or better (dry, non-conductive pollution only). All drives are capable of delivering full
rated output current at surrounding air temperatures up to 40 °C.
Drives may be operated in surrounding air temperatures up to 50 °C or 55 °C at de-rated current, depending on the model number. Refer to section
12.1.1 Power and current ratings (Derating for switching frequency and temperature) on page 259.
14.6 Electrical Installation
TERMINAL TORQUE
Terminals must be tightened to the rated torque as specified in the Installation Instructions. Refer to section 3.12.2 Terminal sizes and torque
settings on page 66 for further information.
WIRING TERMINALS
Drives must be installed using cables rated for 75 °C operation, copper wire only.
UL Listed closed-loop connectors sized according to the field wiring shall be used for all field wiring connections. Refer to section 3.12.2 Terminal
sizes and torque settings on page 66 for further information.
BRANCH CIRCUIT PROTECTION
The fuses and circuit breakers required for branch circuit protection are contained in the Installation Instructions. Refer to section 12.1.20 Input
current, fuse and cable size ratings on page 271
OPENING OF BRANCH CIRCUIT
Opening of the branch-circuit protective device may be an indication that a fault has been interrupted. To reduce the risk of fire or electric shock, the
equipment should be examined and replaced if damaged. If burnout of the current element of an overload relay occurs, the complete overload relay
must be replaced.
Integral solid state short circuit protection does not provide branch circuit protection. Branch circuit protection must be provided in accordance with
the National Electrical Code and any additional local "codes".
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