Fluke VIBGUARD compact, Manual, Page: 22 / 50

5.2 Mains connection
VIBGUARD compact meets the requirements for protection class I. The resulting necessary protective earth con-
ductor establishes the connection between the protective earth connection of the VIBGUARD compact and the
external protective earth conductor system.
The protective earth conductor is part of the mains connection cable. There must be no fuse, switch or circuit brea-
ker in this connection.
The protective conductor cross-section must correspond to the overcurrent protection device of the building instal-
lation and at least to the cross-section of the mains connection cables.
The cross-sections of the mains connection cables must correspond to the overcurrent protection device of the
building installation and the minimum required cross-section resulting from the power consumption.
Requirements for the mains connection cable :
Diameter 7 mm ... 13 mm for M20 cable gland
Core cross-sections according to upstream cable protection
Strain relief Cable is specified for cable gland. Otherwise, the gland is not suitable as a strain relief.
The overcurrent protection device of the building installation also serves as an isolating device and must be desi-
gned as a circuit breaker.
Circuit-breaker requirements:
T h e c i r c u i t - b r e a k e r s m u s t . . .
be installed in the building installation.
correspond to the rated current 6A and the tripping characteristic C.
meet the requirements of IEC 60947-2.
disconnect all live conductors.
be suitably arranged and easily accessible.
be marked as a disconnecting device for VIBGUARD compact.
be marked with a clear OFF position.
be designed to meet the power supply requirements.
22 Edition: 10.2018
Installation and Operation