
6
Electrical installation
Installation instructions for fieldbus interfaces, field distributors
Manual – EtherCAT
®
Interfaces, Field Distributors
40
6.2.9
UL-compliant installation
INFORMATION
Due to UL requirements, the following chapter is always printed in English indepen-
dent of the language of the documentation.
Field wiring power terminals
Observe the following notes for UL-compliant installation:
•
Use 60/75 °C copper wire only
•
Tighten terminals to 1.5 Nm (13.3 in-lb.)
Short circuit current rating
Suitable for use on a circuit capable of delivering not more than 200,000 rms symmet-
rical amperes when protected as follows:
For 240V systems:
250V minimum, 25A maximum non-semiconductor fuses or
250V minimum, 25A maximum inverse time circuit breakers
For 500V systems:
500V minimum, 25A maximum, non-semiconductor fuses or
500V minimum, 25A maximum, inverse time circuit breakers
The max. voltage is limited to 500 V.
Group installation
Suitable for motor group installation on a circuit capable of delivering not more than
5,000 rms symmetrical amperes when protected by:
For 240V systems:
240V minimum, 25A maximum non-semiconductor fuses, or
240V minimum, 25A maximum inverse time circuit breaker
For 500V systems:
500V minimum, 25A maximum, non-semiconductor fuses, or
500V minimum, 25A maximum, inverse time circuit breakers
Suitable for motor group installation on a circuit capable of delivering not more than
18,000 rms symmetrical amperes when protected by:
For 240V systems:
240V minimum, 25A maximum non-semiconductor fuses
For 500 V systems:
500V minimum, 25A maximum, non-semiconductor fuses
25809148/EN – 01/2019