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 | |
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IP 5XX | Against harmful dust deposits |
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IP 6XX | Against dust entry |
Water protection - 2nd IP digit
| Test Mark | Protection Type | Protection |
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IP X1X | Against drops of water falling vertically |
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IP X2X | Against drops of water from angles up to 15° |
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IP X3X | Against showers up to 60° |
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IP X4X | Against splash water |
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IP X5X | Against heavy downpours |
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IP X6X | Against water jets |
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IP X7X | Against immersion |
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IP X8X | Against submersion |
Mechanical impact protection - 3rd IP digit
| Test Mark | Protection Type | Protection |
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IP XX1 | Impact 0,225 joule |
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IP XX2 | Impact 0,375 joule |
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IP XX3 | Impact 0,500 joule |
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IP XX5 | Impact 2,00 joules |
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IP XX7 | Impact 6,00 joules |
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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.