Short answer: put the camera on a metal box rated NEMA 4X / IP66 by the manufacturer — not UL listed — and bring its cable through a gland tightened to about 5 N·m [44 lb-in]. The clamp should grip at least 0.4 in [10 mm] of outer sheath. Hang a drip loop whose low point sits 0.5 in [13 mm] or more below the gland, on a jacket rated for sunlight. A printed spacer gives you none of those four things: it is a mount, not a junction box.
What the mount has to provide
A floodlight camera leaves the factory sealed — IP65 is the usual body rating — and that protection ends where its cable leaves the camera. Everything behind it, the spacer, the box, the gland, the splice, has to earn its own seal. Four parts do the work:
| Part | What it must do | The number that proves it |
|---|---|---|
| Housing | shed jets, dust and rain off the connections | manufacturer-rated NEMA 4X-type / IP66 — not UL listed |
| Gland | seal the box wall to the cable jacket | 12.5 mm nozzle at 100 L/min for 3 min (IEC 60529, digit 6) |
| Strain relief | keep a pulled cable off the terminations | clamp grips 0.4 in [10 mm] of jacket |
| Drip loop | drop running water off before the gland | low point 0.5 in [13 mm] below the gland |
| Cable | survive sun, rain and freeze | sunlight-resistant jacket; indoor PVC cracks in 2-3 years |
Those are manufacturer ratings: NEMA does not test or certify enclosures, and the box is not UL listed. Let a printed spacer carry the bolt circle if that is what fits your wall. Keep the wiring in a rated housing — why a 3D printed outdoor enclosure still needs a rated box works that trade-off through. The pulling side of the problem, loads and clamp types, is covered in strain relief for sealed enclosure entries.
What the jet test throws at the joint
IEC 60529 tests the second digit 6 with a 12.5 mm nozzle delivering 100 L/min from 2.5 to 3 m [8.2 to 9.8 ft] for at least 3 min. Run the units and you see why an ungasketed plastic joint floods in the first storm. 100 L/min is 1.67 L/s, and the nozzle opening is π × 6.25² = 122.7 mm². The water therefore leaves at 1,666,700 ÷ 122.7 ≈ 13,600 mm/s — 13.6 m/s, about 49 km/h [30 mph]. Over 3 min that is 300 L [80 gal] aimed straight at your gland.
The camera's own IP65 digit is a gentler test: a 6.3 mm nozzle at 12.5 L/min, a tenth of the flow. The IP rating chart maps the whole scale, and IP65 vs IP66 water jet tests shows what the extra digit buys. Keep in mind that IP66 is a jet rating, not immersion — that is digit 7, 1 m [3.3 ft] for 30 min. And the assembly holds the rating of its weakest part: one open hole caps the whole install at that hole.
What you need
- Body: a 10 x 8 x 4 in 316L wall-mount enclosure for coastal air or road salt. The same 10 x 8 x 4 in box in 304 suits inland walls, and an 8 x 8 x 4 in 316L when one camera and two splices are all that is inside.
- Gland: one nylon or brass M16 gland with a clamping range of 3-6.5 mm [0.12-0.26 in], matched to your measured jacket — match the gland clamping range to the cable.
- Hole: about 17 mm [0.67 in] through the bottom wall, at least 1 in [25 mm] from a corner — or a factory cutout cut to your marked position.
- Cable: a jacket marked sunlight-resistant or outdoor-rated for the whole run.
- Extras: two-way terminal blocks, a torque wrench scaled 2-10 N·m [18-89 lb-in], stainless M5 hardware for the camera bracket.
Fit the gland and mount the camera
Open the disconnect and verify absence of voltage before you take any cover off; a floodlight camera is mains-fed on most installs. Then work the steps in this order:
- Mark the gland hole in the bottom wall of the box, at least 1 in [25 mm] from a corner, so the loop can hang below it.
- Cut the 17 mm [0.67 in] hole and deburr the stainless, or send the drawing for a factory cutout to that mark.
- Fit the gland from outside with its O-ring under the flange, and run the locknut inside to about 5 N·m [44 lb-in].
- Slip the gland's seal and clamp parts over the cable, then thread it through from outside.
- Push the cable in until at least 0.4 in [10 mm] of jacket — 12 mm [0.47 in] is comfortable — sits under the clamp.
- Tighten the sealing nut to about 5 N·m [44 lb-in]. The seal must compress on the jacket itself, which is why cable gland seals must contact the cable's outer sheath; over bare conductors it holds nothing.
- Check by hand: the cable should neither turn nor slide in the gland.
- Form the drip loop so its low point hangs 0.5 in [13 mm] or more below the gland body.
- Terminate the conductors on blocks with 6 in [150 mm] of slack, dress the loop away from the door, and shut the door on its gasket.
- Mount the camera above the gland: box and bracket carry the camera, the gland carries the cable and nothing else.
The wider routine — gland choice, drip loops, where a drain is legitimate — is laid out in sealing an outdoor junction box. For camera-specific layout points, outdoor junction box for camera wiring covers mounting height, fill and power.
Checks that prove the seal
- Pull: a steady 20 lbf [90 N] straight pull moves the cable less than 1 mm [0.04 in], and the jacket, not the conductors, takes the load.
- Hose: run a hose jet on the gland for 2 min, open the door, and confirm the box is bone dry.
- Loop: pour a cup of water along the cable; it should drop off the low point at least 13 mm below the gland, not at the seal.
- Door: after the first opening, the gasket shows a continuous compression mark all the way round.
- Camera: picture, floodlight and IR all come up; an intermittent picture after closing usually points at a terminal, not the seal.
Mistakes that cost the rating
- Sealing on conductors. Strip the jacket back past the clamp and the seal grips air; jacket goes under both seal and clamp.
- Entry through the lid. A top gland sits in standing water; bottom entry plus the loop keeps the seal dry.
- Indoor cable outdoors. Plain PVC embrittles after 2-3 years of full sun; a sunlight-resistant jacket is the fix.
- Caulk instead of a gland. A silicone bead lets go under a 13.6 m/s [49 km/h] jet; the O-ring and clamp do that work.
- An oversized hole. A 22 mm [0.87 in] hole under an M16 gland leaves the locknut riding air; hold 17 mm [0.67 in].
- A drain hole "just in case." NEC 314.15 permits drainage openings of 3-6 mm [1/8-1/4 in] in boxes listed for damp or wet locations, but each hole caps a sealed box at about Type 3R performance; on a 4X-type box, fill it with a gland.
- The bracket as strain relief. The camera mount grips the housing, never the cable; a snagged ladder or an ice load goes straight to the gland clamp.
What to put on the order
Start with the body: 10 x 8 x 4 in [254 x 203 x 102 mm] in 316L for coastal or road-salt sites, 304 inland. Wall-mount enclosures lists both grades across the size range. Add the cutout on the drawing — one M16 [17 mm] or 1/2 in NPT hole, bottom wall, position dimensioned from a corner — plus the gland spec: M16, 3-6.5 mm clamping range, and the jacket spec of the cable you will pull. Custom bodies and cutouts are delivered in 10 business days, counted from your approval of the drawing; catalog boxes count from your order. Order the gland against the same measured jacket, and the whole entry holds one rating from camera to terminal.
Enclosures in this article
| Enclosure | Material | Outside H x W x D / display | Rating |
|---|---|---|---|
| 10 × 8 × 4 in | 316L stainless | 10 x 8 x 4 in | Rated NEMA 4X / IP66 by the manufacturer; not UL listed |
| 10 × 8 × 4 in | 304 stainless | 10 x 8 x 4 in | Rated NEMA 4X / IP66 by the manufacturer; not UL listed |
| 8 × 8 × 4 in | 316L stainless | 8 x 8 x 4 in | Rated NEMA 4X / IP66 by the manufacturer; not UL listed |
Questions
Does a printed spacer behind the camera keep the IP rating?
The camera keeps its own rating only while its factory cable and gland stay untouched; the spacer adds none. A body rated IP65 was tested with a 6.3 mm nozzle at 12.5 L/min. The wiring behind it sees the same weather, so put it in a box sealed to IP66 — 100 L/min from a 12.5 mm nozzle for 3 min — with a gland on the cable.
What size cable gland fits a floodlight camera cable?
Match the clamping range to the measured jacket OD. An M16 gland with a 3-6.5 mm [0.12-0.26 in] insert covers most camera cables of 4-6 mm [0.16-0.24 in] OD. Step up to an M20 gland (about 4-8 mm) when thicker power leads share the hole. Measure the jacket first, then pick the insert so the OD sits near the middle of the range.
How tight should the gland nuts be?
About 5 N·m [44 lb-in] on the sealing nut and the same on the locknut — a typical value for M16 and M20 nylon glands, and a wrench scaled 2-10 N·m covers it. Tighten until the seal visibly compresses on the jacket and you can no longer turn the cable by hand; much past that you risk splitting a nylon nut.
Do I still need a drip loop with a sealed gland?
Yes. Water tracks along a wet jacket and pools at the seal, so hang the loop with its low point at least 0.5 in [13 mm] below the gland body — 1 in [25 mm] costs nothing — and the drip forms there instead. On a run washed weekly, the loop is what keeps the seal dry between washdowns.
