Installation and connection
22
RCMS460-490_D00067_03_M_XXEN/12.2017
4.2 Fuses, max. voltage, cable lengths
Equip the supply voltage of all system components with fuses.
IEC 60364-4-473 requires protective devices to be used to protect the
component in the event of a short circuit. We recommend the use of 6
A fuses.
When using busbar systems, please note: The maximum voltage of the
system being monitored must not exceed the nominal insulation volt-
age of the measuring current transformers used in the RCMS system.
Select the cables and cable lengths according to the technical data on
page 86ff. If you use cables that are longer than those specified here,
Bender cannot guarantee that the equipment will function safely.
For UL application:
– Use at least 60/70 °C copper lines!
4.3 Installation instructions
The devices are suitable for the following installation methods:
Distribution panels according to DIN 43871 or
DIN rail mounting according to IEC 60715 or
Screw mounting using M4 screws.
Mount the measuring current transformers in accordance with the notes in the
"Transformer installation“ technical information. When connecting the measu-
ring current transformers, it is essential that you observe the maximum cable
lengths, the conductor cross section and that you use shielded cables.
Danger of electric shock!
Before fitting the device and prior to working on the device
connections, make sure that the power supply has been
disconnected and the system is dead.
Furthermore, the electrical installation may sustain damage
and the device be destroyed beyond repair.
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