Technical Guide

The ingress protection (IP) code denotes the protection against solid objects, moisture and impact provided by the luminaire enclosure.

 

Foreign body protection - 1st IP digit

Test Mark	Protection Type	Protection
	IP 1XX	Against foreign bodies ≥ 50 mm
	IP 2XX	Against foreign bodies ≥ 12 mm
	IP 3XX	Against foreign bodies ≥ 2.5 mm
	IP 4XX	Against foreign bodies ≥ 1 mm
	IP 5XX	Against harmful dust deposits
	IP 6XX	Against dust entry

 

Water protection - 2nd IP digit

Test Mark	Protection Type	Protection
	IP X1X	Against drops of water falling vertically
	IP X2X	Against drops of water from angles up to 15°
	IP X3X	Against showers up to 60°
	IP X4X	Against splash water
	IP X5X	Against heavy downpours
	IP X6X	Against water jets
	IP X7X	Against immersion
	IP X8X	Against submersion

 

Mechanical impact protection - 3rd IP digit

Test Mark	Protection Type	Protection
	IP XX1	Impact 0,225 joule
	IP XX2	Impact 0,375 joule
	IP XX3	Impact 0,500 joule
	IP XX5	Impact 2,00 joules
	IP XX7	Impact 6,00 joules
	IP XX9	Impact 20,00 joules

17 The ENEC symbol (European Norm Electrical Certification) is a European test and certification symbol for luminaires and electrical components in luminaires.

Luminaires with the F mark can be fixed to normal flame-inhibiting materials (EN60598/VDE0711).

The LED luminaire protective device, MCB (supplied by others), has to be able to withstand the inrush current of the luminaire(s) without tripping. The inrush current of LED luminaires is determined by the driver(s) and is not proportional to the luminaire wattage or running current. LED luminaire inrush currents can be as high as 400 times the running current for a very short time, generally less than 500us. This inrush duration is significantly less than the 10ms lower limit for conventional MCB tripping. However, some MCBs have a second tripping functionality, for inrush durations less than 10ms, having an increasing tolerance to high inrush currents related to the logarithmic inverse of the duration. Therefore Holophane recommends the proposed MCB manufacturers should be consulted regarding the tolerance of their products to the expected inrush current parameters. Holophane publish a table of inrush current parameters for each luminaire so that a suitable MCB can be identified by the lighting circuit designer or specifier.

Circuit protection is the responsibility of the electrical installation designer, as such, Holophane cannot advise on the sizing of circuit protection devices to be used, other than to make available the relevant luminaire inrush data, available via our web site or upon request if not listed

The inrush parameters, using the above link, are obtained from the driver manufacturers. As LED driver technology is in its infancy, the specification of drivers is likely to change more frequently than the lighting industry has become accustomed with similar products. We would therefore recommend that the inrush parameters are confirmed using the link, at circuit design, and again immediately prior to luminaire ordering.

 

 

 

In today’s ultra-competitive environment, it is becoming increasingly important to reduce operating costs to improve profitability. Holophane is your expert when it comes to delivering the most efficient lighting solutions to help you achieve that goal. Taking advantage of the most advanced technologies available, you can achieve an energy saving of up to 60%* over existing installations based on a point for point replacement.
 
*Compared to a 400W HID circuit.

	Lumen Multiplier
Ambient	Interior	Exterior
15°C		1.02
20°C		1.01
25°C	1.00	1.00
30°C	0.99	0.99
35°C	0.98	0.98
40°C	0.98	0.97
45°C	0.97	0.96
50°C	0.96
55°C	0.96
60°C	0.96
65°C	0.95
70°C	0.95