The Domus EVAC D63 is a recessed non-maintained LED emergencylight 3.5W, 380lumens, D63classification, LiFePO4 battery, adjustable 95/145mm dishat 34mm deep, in black or white.

Two products share this title, and it fits neither

• The title reads SURFACE EMERGENCY D63 RECESS and is used bytwo different listings this recessed one, and a surface-mountedversion.
• IT CONTAINS BOTH WORDS AND DESCRIBES NEITHER PRODUCT CORRECTLY.
• WHICH IS WHICH IS SETTLED BY THE FEATURES, NOT THE TITLE:
  • THIS ONE IS RECESSED an adjustable 95/145mm dish and a34mm depth, which only make sense for a fitting going into a hole.
  • The other is surface-mounted a 180 180mm plate and an80mm height, which only make sense for a fitting sitting on a ceiling.
• ONLY THREE DUPLICATE TITLES EXIST IN THE WHOLE CATALOGUE, so this is a small and fixableset. If you are ordering from a schedule, check the handle or the dimensions rather thanthe title. Tell us which mounting you need and we will send the right one.

D63 rather than D40 and what the number decides

• The classification under AS2293.3 is D63. The letter describes the light distribution and the number is the spacing basis.
• PRACTICALLY, IT TELLS A DESIGNER HOW FAR APART THESE CAN SIT and still meet the requiredfloor illuminance. A higher number means wider spacing, so fewer fittings cover the samearea. That matters more to the cost of an emergency scheme than the lumen outputdoes.
• The related D40 fitting elsewhere in this range is 1.8W and 239lumens; this is3.5W and 380 so D63 buys both more light and wider spacing. On a large floor plate that can mean noticeably fewer fittings.
• Do not compare classifications across manufacturers by number alone the spacing tables are what matter, and your certifier will work from those.

A four-year warranty that includes the battery

The sheet says 4 Year Warranty including battery. THAT INCLUSION IS THE PART TO NOTICE. On emergency fittings the battery isthe consumable and is commonly excluded from cover, so a warranty naming it is materially better than onethat does not. It is also longer than the D40 model’s two years in the samerange worth knowing if you are choosing between them for reasons other thanspacing.

Polarity reversal protection a genuinely practical feature

The range description notes a polarity reversal protection switch mode forthe battery, described as suiting jobs not yet complete where the power must be turned off at themains. WHAT THAT SOLVES IS A REAL SITE PROBLEM. Emergency fittingsinstalled early in a build sit discharging every time the site power goes off, and a battery cycled thatway repeatedly before handover arrives at commissioning already degraded. A switch that isolates the battery until the job is live protects it. If fittings are going in months before practical completion, ask us how to setit.

Non-maintained, and the adjustable dish

• Non-maintained means the fitting is dark in normal use and illuminates only when the mainssupply fails. That is the normal choice for offices, corridors and back-of-house the LED and battery are only worked when needed.
• THE 95 TO 145mm ADJUSTABLE DISH IS THE RETROFIT FEATURE. It coversa wide range of existing holes, so on a refit the fitting drops into whatever the old one leftbehind. At 34mm deep it also goes into ceilings that will not take a conventionaldownlight body.
• An adaptor plate for larger holes is also supplied in this range. Check the existing cutout against the 95145mm range before ordering.

And the owner obligation nobody sells

Emergency fittings require periodic discharge testing under AS2293.2. That is an owner obligation rather than a product feature, and it is what determines whether thefitting works on the day it is needed. A building full of emergency lights that hasnever been tested is a building with unknown emergency lighting.

What is published

Where it works

• Offices, corridors, back-of-house.
• Refits the dish covers existing holes.
• Large floor plates D63 spacing means fewer fittings.
• Long builds polarity protection saves the battery.
• Not without a testing regime AS2293.2.

Specifying it

Recessed non-maintained LED emergency luminaire. 3.5W, 380lm. D63 classification toAS2293.3-2005 + AMD 1&2 Annex C, EMC compliant. LiFePO4 battery with polarity reversal protection.Adjustable dish 95145mm, 34mm deep. 240V. 4-year warranty including the battery. IT SHARES ITS TITLE WITH A DIFFERENT PRODUCT “SURFACE EMERGENCY D63 RECESS” is used by boththe recessed and the surface-mounted version and contains both words. THIS IS THE RECESSED ONE: anadjustable 95/145 mm dish and a 34 mm depth only make sense for a fitting going into a hole. Only threeduplicate titles exist in the whole catalogue, so it is small and fixable but if you are ordering from aschedule, check the dimensions rather than the title.

Supplied and supported by Lights For You.

Questions

Is this the recessed or the surface-mounted version?

Recessed. It shares its title with a different product “SURFACE EMERGENCY D63 RECESS” is used by both versions and contains both words. The features settle it: an adjustable 95/145mm dish and a 34mm depth only make sense for a fitting going into a hole, where the other version has a 180 x 180mm plate and an 80mm height.

How do I make sure I order the right one?

Check the handle or the dimensions rather than the title. Only three duplicate titles exist in the whole catalogue, so it is a small and fixable set but on a schedule it is easy to pick the wrong one. Tell us which mounting you need and we will send the right one.

What does the D63 classification tell me?

How far apart the fittings can sit and still meet the required floor illuminance. The letter describes the light distribution and the number is the spacing basis, so a higher number means wider spacing and fewer fittings for the same area which matters more to the cost of an emergency scheme than the lumen output does.

How does it compare with the D40 in this range?

The D40 is 1.8W and 239 lumens; this is 3.5W and 380, so D63 buys both more light and wider spacing. On a large floor plate that can mean noticeably fewer fittings. Do not compare classifications across manufacturers by number alone though the spacing tables are what matter, and your certifier will work from those.

Is the warranty good?

Better than most. Four years including the battery and on emergency fittings the battery is the consumable and is commonly excluded from cover, so a warranty naming it is materially better than one that does not. It is also longer than the D40 model’s two years in the same range.

What is polarity reversal protection for?

A real site problem. Emergency fittings installed early in a build sit discharging every time the site power goes off, and a battery cycled that way repeatedly before handover arrives at commissioning already degraded. A switch that isolates the battery until the job is live protects it. If fittings are going in months before practical completion, ask us how to set it.

Will it fit my existing cutout?

Probably. The dish adjusts from 95 to 145mm, which covers a wide range of existing holes, and an adaptor plate for larger holes is supplied in this range. At 34mm deep it also goes into ceilings that will not take a conventional downlight body. Check the existing cutout against that range before ordering.