Bender ISOMETER IRDH275, Manual

Page: 121 / 184

29 IRDH275_D00122_03_M_XXEN/05.2017
4. Connection
4.1 Wiring
Connect the terminals A1/+ and A2/- to the supply voltage U
S
in accordance
with IEC 60364-4-43. The connections to the supply voltage shall be provided
with protective devices to afford protection in the event of a short circuit
(a 6 A fuse is recommended).
For UL and CSA applications, the use of 5 A fuses is mandatory.
Devices for protection against short-circuit in conformity with IEC 60364-4-43
for the IT system coupling L1/L2 can be omitted if the wiring is carried out in
such a manner as to reduce the risk of a short-circuit to a minimum (a short-
circuit-proof and earth-fault-proof wiring is recommended).
Only qualified personnel are permitted to carry out the
work necessary to install, commission and run a device or
system.
Risk of electrocution due to electric shock!
Touching live parts of the system carries the risk of:
•
An electric shock
• Damage to the electrical installation
• Destruction of the device
Before installing and connecting the device , make sure
that the installation has been de-energised . Observe the
rules for working on electrical installations.
DANGER