Index of Protection
The index of protection classifies electrical equipment according to the level of protection against contact and electrical safety as well as against the ingress of foreign bodies and water or moisture.
First Index Number: Protection against solid objects
IP 0x No protection against solid objects
IP 1x Protection against solid objects >50mm
IP 2x Protection against solid objects >12mm
IP 3x Protection against solid objects >2,5mm
IP 4x Protection against solid objects >1mm
IP 5x Protection against dust limited ingress
IP 6x Protection against any entry of dust
Second Index Number: Protection against water
IP x0 No protection against water
IP x1 Protection against falling drops of water (vertically)
IP x2 Protection against direct sprays of water (inclination 15°)
IP x3 Protection against falling sprays of water (inclination 60°)
IP x4 Protection against direct sprays of water from all directions
IP x5 Protection against low pressure jets of water
IP x6 Protection against temporary flooding of water
IP x7 Protection against temporary immersion in water
IP x8 Protection against continuous submersion in water
IP 65 Dust-tight and jetwater-proof
BuR Lighting High Bay luminaires have at least the index IP65.
According to EN 61140 and IEC 60417, luminaires are assigned to the following protection classes:
Protection Class I
Luminaires of protection class I are prepared for electrical grounding to a protective conductor. BuR Lighting luminaires meet at least this requirement.
Protection Class II
Luminaires of protection class II are insulated and therefore do not require electrical grounding to a protective conductor. Most functional luminaires from BuR Lighting meet the requirements of protection class II.
Protection Class III
Luminaires of protection class III are designed for operation at a safety extra-low voltage of max. 50V.