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 telecommunications networks!

Ambient temperature

CAUTION
CAUTION!

In order to comply with UL requirements, the IP67 Box modules must only be operated in an ambient temperature range between 0 and 55 °C!

Marking for UL

All UL (Underwriters Laboratories) certified IP67 Box modules have the following markings.

UL Requirements 1:
UL marking