
I-CUEE-03.doc Issue 08 28/04/2021 6
IOM – CURIE ELITE - ZONE 1 RECESSED
Suspension mount holes: If using the 4 additional suspension mount holes on the rear of the fitting, please
ensure the sealing washers are fitted and torqued to a value of 2.5Nm.
3.5 Cabling and Cable Glands
The temperature conditions at the supply cable entry point are such that 70ºC (ordinary PVC) cable can be used.
The installer and user must take responsibility for the selection of cables, cable glands and seals.
The product is certified for ATEX, IECEx and UKEX and to comply with the certification for installation cable glands and
sealing plugs must be ATEX, IECEx or UKEX certified depending on site requirements.
The cable and gland assembly when installed must maintain a minimum IP65 rating.
Where the cable is not reliably clamped externally to the apparatus the cable gland must clamp the cable
against a pull in Newtons of 20 x the cable OD in mm.
Four entries suitable for M20 are provided. Three entries are fitted with suitably approved blanking plugs, the
fourth entry with a transit plug. Other sizes are available on request.
3.6 Electrical Connections and Testing
If work is to be done on any luminaire already connected to the electrical system, the luminaire must be isolated
from the system. Access for the cabling is via removal of front cover and lamp tray. The front cover is secured
using 6/10 off M6 captive screws, care to be taken as there is no suspension on this, and lampholder tray is
secured by M5 screws and keyhole slots, with chain suspension allowing the tray to swing down, giving access
to terminal blocks. Install the conductors in the appropriate terminals. Take care not to cut the conductor
insulation excessively, 1mm of bare conductor outside the terminal throat is a maximum. Before re-fitting
lampholder tray and front cover, the cores/cable should be neatly tucked away and a final check made on correct
connections.
Luminaires are supplied suitable for looping and through wiring.
The through current rating is 16A. 4mm² terminals are standard (6mm² wiring can be used in the terminals as
per the certificate).
Screw type or screw-less “cage clamp” terminals are fitted in the range of luminaires. Mains terminal blocks are
marked L N Earth.
Mains terminal blocks on the emergency luminaires are marked Lc Ls N Earth.
Luminaires can also be supplied with three phase wiring to special order. The marking is L1 L2 L3 L s N Earth
The emergency units can be connected as switched, un-switched or non-maintained units. The switching facility
is to allow the luminaire to be switched off whilst still charging the battery. Where switching is required, the un-
switched line (Lc) is connected to the continuous mains supply. A link is fitted during assembly between Lc and
switched line (Ls); this is removed for the switch-able mode. If the link is removed and Ls not supplied, the unit
will only operate on emergency.
4.0 Emergency Operation
4.1 General description of operation
The luminaire will go seamlessly into emergency mode at not less than 60% rated supply voltage and will remain
in mains mode above 85% of rated supply voltage.
The charging function is monitored continuously, there is a check for over charging and no charging. In case of a
control gear error, the indicator will flash quickly on and off. Batteries will fully charge within 24hrs.
After a complete battery discharge, the unit will switch over to a low discharge current mode.
LED display
The status is displayed by means of green LED signals.
The LED will flash slowly, if the batteries are being charged.
The LED will be steady at full charge.
The LED will flash quickly if there is a fault or a warning.
The LED will be off during emergency operation.
Low Temperature Operation
At battery temperatures below 10°C charge current is reduced and charge time increased. This temperature is
equivalent to the luminaire operating at -5°C with the lamps on or at +5°C with the LEDs off.
Under operating conditions where the ambient temperature is below 0°C for long periods the luminaire should
preferably be used in maintained mode so that the mains supplied LEDs warm up the battery to a normal
working temperature.