). The symbol indicating the protective
earth often used.171
The Lighting Handbook
Protection classes
Protection classes describe measures
providing protection against touch-sensitive
voltages.
The Zumtobel range includes protection
class luminaires, for instance moisture-
proof batten luminaires and moisture-proof
diffuser luminaires.
Unless specified otherwise, all luminaires
by Zumtobel comply least with protection
class I.
Architectural luminaires such as
2LIGHT MINI and MICROS-S are protection
class III luminaires.
Protection class not identified a
symbol. These measures are set out the
EN 61140 standard and marked with symbols
in compliance with IEC 60417.
Class luminaires
Class luminaires have total insulation but
no protective earth terminal.
Class III luminaires
Class III identifies luminaires that are
intended for operation with protective extra
low voltage (50 max.
= Protection class I
= Protection class II
= Protection class III
v
w
x
.
Zumtobel luminaires are classified into the
following classes protection:
Class luminaires
The luminaire designed for connection to
a protective conductor
