UL Requirements
The installation of the EtherCAT Box Modules certified by UL has to meet the following requirements.
Supply voltage
CAUTIONCAUTION!
This UL requirements are valid for all supply voltages of all marked EtherCAT Box Modules!
For the compliance of the UL requirements the EtherCAT Box Modules should only be supplied
- by a 24 VDC supply voltage, supplied by an isolating source and protected by means of a fuse (in accordance with UL248), rated maximum 4 Amp, or
- by a 24 VDC power source, that has to satisfy NEC class 2.
A NEC class 2 power supply shall not be connected in series or parallel with another (class 2) power source!
CAUTIONCAUTION!
To meet the UL requirements, the EtherCAT Box Modules must not be connected to unlimited power sources!
Networks
CAUTIONCAUTION!
To meet the UL requirements, EtherCAT Box Modules must not be connected to telecommunication networks!
Ambient temperature range
CAUTIONCAUTION!
To meet the UL requirements, EtherCAT Box Modules has to be operated only at an ambient temperature range of -25 °C to +55 °C!
Marking for UL
All EtherCAT Box Modules certified by UL (Underwriters Laboratories) are marked with the following label.
