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Protection Classes
Measures must be taken to protect against electrical shock in electrical
equipment as in luminaires. They must guarantee that even in the case
of failure no dangerous electrical voltages can occur on accessible casing
parts.
The various possibilities of achieving this are divided into protection classes.
In Germany only protection classes I, II and III are permitted.
Technical Characteristics
Protection
Classes
Meaning
Notes
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Luminaires with a connection point for
an earth wire, to which all accessible
metal parts must be connected which
might directly take on voltages in case
of failure.
Connection to protective earth
conductor mandatory.
The symbol is affixed to the
connection point.
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In such luminaires no metal parts may
be accessible, which in the case of
failure might directly take on voltages
(protective insulation or double
insulation).
Luminaire must not have an
earth wire connection and not
be connected to a protective
earth conductor.
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Luminaires that operate with safety
extra-low voltage (SELV), i.e. with
voltages under 50V generated by a
safety transformer according to DIN
VDE 0551 (EN 60742) or taken from
batteries or accumulators.
Luminaire must not have an
earth wire connection and not
be connected to a protective
earth conductor.
IP protection types
The IP protection types denote a luminaire’s degree of mechanical safety.
They describe the degree to which the luminaire is protected against the
penetration of foreign bodies or damp.
Our recessed luminaires’ protection types IP 23 and IP 44 named in the cat-
alogue apply to the light emission aperture and only for use of the recessed
luminaires in dry rooms and closed roof systems.
protec-
tion type
1st reference number
Dust and Foreign Body
Protection
2nd reference number
Water and Damp Protection
IP 00
Unprotected
Unprotected
IP 11
Protected against solid foreign
bodies larger than 50 mm
Protected against dripping water,
0° angle of impact to perpendicular
IP 20
Protected against solid foreign
bodies larger than 12 mm
Unprotected
IP 22
Protected against solid foreign
bodies larger than 12 mm
Protected against dripping water,
15° angle of impact to perpendicular
IP 23
Protected against solid foreign
bodies larger than 12 mm
Protected against spray water from
an inclination of up to 60° against the
perpendicular
IP 33
Protected against solid foreign
bodies larger than 2,5 mm
Protected against spray water from
an inclination of up to 60° against the
perpendicular
protec-
tion type
1st reference number
Dust and Foreign Body
Protection
2nd reference number
Dust and Damp Protection
IP 40
Protected against solid foreign
bodies larger than 1 mm
Unprotected
IP 44
Protected against solid foreign
bodies larger than 1 mm
Protected against spray water
from any direction
IP 50
Dust-protected
Unprotected
IP 54
Dust-protected
Protected against spray water
from any direction
IP 55
Dust-protected
Protected against jet spray water from
any direction
IP 65
Dust-protected
Protected against jet spray water from
any direction
IK protection type
The IK protection type shows the mechanical resistance of a casing and
thus denotes the impact protection. The degree of IK protection ofered
by a casing against external mechanical stress is stipulated by the IK code
according to standard DIN EN 50102 (VDE 0470 Part 100).
IK
Test
Energy in Joules
IK 00
–
0,00
IK 01
75 mm
0,15
IK 02
100 mm
0,20
IK 03
175 mm
0,35
IK 04
250 mm
0,50
IK 05
350 mm
0,70
IK 06
200 mm
1,00
IK 07
400 mm
2,00
IK 08
295 mm
5,00
IK 09
200 mm
10,00
IK 10
400 mm
20,00
0,2 kg
0,2 kg
0,2 kg
0,2 kg
0,2 kg
0,5 kg
0,5 kg
1,7 kg
5,0 kg
5,0 kg
