Installation Guide 21
Issue Number: 2 www.johnsoncontrols.com
Safety information Operation Mechanical installation Electrical installation
Operation
Technical specifications UL listing information
7 UL listing information
7.1 UL information
(For VFD66JCB-1, VFD66KCB-1)
The Johnson Control UL file number is E244421. Confirmation of UL listing can be found on the UL
website: www.ul.com.
7.1.1 Conformity
The drive conforms to UL listing requirements only when the following are observed:
• Class 1 60/75°C (140/167°C) copper wire only is used in the installation.
• The ambient temperature does not exceed 50°C (122°F) when the drive is operating.
• The grounding connection shall be made with a UL listed ring lug.
• The drive is installed into a separate electrical type 1 enclosure or better, as defined by UL50.
• UL listed class CC acting fuses e.g. Bussman Limitron KTK series, Gould AmpTrap ATM series
or equivalent are used in the AC supply.
• Ensure that the field wiring leads are securely installed to the input and output power tabs.
• Power circuit wiring leads need to be a minimum of 14 AWG wire.
7.1.2 AC supply specification
The drive is suitable for use on available circuits of 5,000A RMS maximum, 480V/240V maximum,
when protected by fuses only, sized 250% FLA maximum.
7.1.3 Motor overload protection
The drive provides motor overload protection. The overload protection level is 110% of the full load
current. For individual motor drive current rating, please refer relevant section of the User guide.
7.1.4 Over-speed protection
The drive provides over-speed protection. However, it does not provide the level of protection
afforded by an independent high integrity over-speed protection device.
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