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Mounting and connection
EPI3xxx, ERI3xxx
24
Version: 1.2
4.5
UL Requirements
The installation of UL-certified IP67 Box modules must meet the following requirements.
Supply voltage
CAUTION
CAUTION!
• from an isolated source protected by a fuse of max. 4 A (according to UL248) or
• from a voltage supply complying with
NEC class 2
.
An
NEC class 2
voltage source must not be connected in series or parallel with another
NEC class 2
voltage source!
CAUTION
CAUTION!
In order to comply with UL requirements, the IP67 Box modules must not be connected to unlimited voltage
sources!
Networks
CAUTION
CAUTION!
In order to comply with UL requirements, the IP67 Box modules must not be connected to telecommunica-
tions networks!
Ambient temperature
CAUTION
CAUTION!
In order to comply with UL requirements, the IP67 Box modules must only be operated in an ambient tem-
perature range between 0 and 55 °C!
Marking for UL
All UL (Underwriters Laboratories) certified IP67 Box modules have the following markings.
Fig. 19: UL marking
Summary of Contents for EPI3 Series
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