ERICO TDS-MOVTEC Surge Diverters - Manual (Page 20)

G L O B A L L I G H T N I N G T E C H N O L O G I E S
PAGE 20
8. RCD, ELCB
Where RCDs/ELCBs (Residual Current
Devices / Earth Leakage Circuit Breakers) are
fitted the Movtecs should be installed in the
circuit prior to these devices (ie upstream).
Where this can not be avoided and RCDs/
ELCBs are installed upstream, nuisance
tripping of the RCD/ELCB may occur during
transient activity.
Contact your local ERICO agent for advice if
upstream RCDs/ELCBs can not be avoided.
9. ISOLATION AND FUSING
Overcurrent and short circuit protection must
be provided to protect the Movtec and
associated wiring if a fault develops. The
overcurrent protection should be installed in
such a manner to also provide a means of
isolating the Movtec module from the mains
supply. This is an important safety
consideration and is required in the event that
any future maintenance or testing is needed.
The Movtec uses disconnection devices to
isolate internal segments that have reached
the end of their service life. In order for this
disconnection to occur correctly, Movtecs
should be only used on circuits with fuse or
circuit breaker ratings of 32A or greater.
(Nuisance operation of the overcurrent
protection may occur during transient activity
on smaller capacity circuits.)