Wiegand Interface Unit Four State (WIU-4)
Installation Manual
20
Regulatory approvals
UL
The following are the results of the UL evaluation of the WIU-4:
• Operating temperature range: +32 F (+0 C) to +120 F
(+49 C)
• Relative humidity: 85%
• Input voltage range: 9 to 16 VDC, 55 mA or higher to
ensure the measured 60 mA is within 110% of the current
rating.
• For UL Listed installations, the WIU-4 must be mounted
within the protected area of a protective enclosure.
UL Listed Installations
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