Ul-Specific Chapter - Beckhoff AX8000 Series Manual

2.3.1

UL-specific chapter

The integrated protection against short circuit is no substitute for the external mains protection. The mains
protection must comply with the manufacturer's specification and the national and international regulations
and laws.
Components of the AX8000 multi-axis servo system must be operated on mains supplies that can supply a
maximum current carrying capacity of 5 kA at 480 V
UL circuit breakers of class "J" are to be used for protection.
• AX8620 power supply modules must be fuse-protected with 30 A max.
• AX8640 power supply modules must be fuse-protected with 60 A max.
With regard to alternatives to the UL circuit breakers of the class "J", be sure to refer to the UL standard "UL
508 A, chapter SB4.2.3, exception no. 1".
Fuse holders with UL approval
Possible configuration examples are described in the further course of this document. Be-
fore implementing a UL configuration, please contact your UL certification body and discuss
further necessary boundary conditions. Furthermore, when using fuse holders, care must
be taken that they have also been tested and manufactured in accordance with the applica-
ble standards of the UL certification body.
Multi axis servo system AX8000
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AC
Version: 1.6
Guidelines and Standards
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