Where the cable enters the box, the entry is the leak
The enclosure sits IN AIR and its lid gasket is rated for that; the hole punched in its wall is in the SPLASH ZONE the first time anyone hoses the area down.
Place the entry, not the enclosure
An enclosure bolted to a wall is IN AIR. Its penetrations are not: a wash-down or a hosed deck arrives at the hole rather than at the box, and a bulkhead entry below deck stays in the SPLASH ZONE for its whole life. State the gap in the data before writing a specification from this page. The manufacturer publishes this gland as watertight and fume-tight and gives it a pressure figure, and publishes no IP code for it. If your drawing demands a stated IP code at the entry, ask the manufacturer for it rather than reading one across from an end-cap datasheet.
Three pieces, one job each. A rigid nylon nut takes the mechanical duty at the plate, an O-ring closes that flat face, and the cross-linked polyolefin body is the only piece that touches the cable. A compression gland asks one clamped elastomer to do all three at once, and needs a wall thick enough, or a locknut and a flat landing, to pull its halves against. A sheet-steel cabinet often has neither. Here nothing is squeezed against the panel in order to make the seal at the cable.
The adhesive is applied at the works, and it seals to two surfaces: the wire and the cable jacket. Water beaten off the panel face is a nuisance; water walking along the cable inside the recovered body and arriving at the terminals is what takes the box out of service. The envelope is narrow and the boundary is as useful as the figure. The seal is rated at 25 psi (1.7 bar) and the assembly at 600 V, so this is a low-voltage entry, and a medium-voltage cable entering a box is a different specification rather than a larger GHSG.
Heat-shrinkable cable entry gland, GHSG series
A three-part entry seal for a thin-wall enclosure: a rigid nylon nut, an O-ring, and a cross-linked polyolefin moulded part carrying factory-applied hot-melt adhesive inside. The manufacturer describes the finished seal as watertight and fume-tight.
- Cable entry into connection boxes, bulkheads and other thin-wall enclosures
- Adhesive seals to the wire and to the cable jacket, not to the panel
- Nylon nut and cross-linked polyolefin combined in one assembly
- Five sizes, GHSG-1 to GHSG-5, supplied bores 13 mm to 70 mm
| Exposure band | SPLASH ZONE at the entry; the enclosure itself IN AIR |
|---|---|
| Assembly | O-ring, heat-shrinkable moulded part, rigid nylon nut |
| Materials | Cross-linked polyolefin body, rigid nylon nut |
| Lining | Factory-applied hot-melt adhesive, sealing to wire and jacket |
| Rating | 600 V; pressure-sealed to 25 psi (1.7 bar) |
| Sizes | GHSG-1 to GHSG-5 |
| Cable diameter covered | 5-67 mm (0.20-2.64 in) over the jacket |
| Supplied internal diameter | 13-70 mm (0.51-2.76 in) |
| Ingress claim | Watertight and fume-tight; no IP code published |
GHSG selection chart
| Gala code | A (mm) | B (mm) | Supplied ID (mm) (Min.) | Recovered ID (mm) (Max.) | Cable diameter range (mm) |
|---|---|---|---|---|---|
| GHSG-1 | 70 | 25 | 13 | 4.3 | 5 - 103 |
| GHSG-2 | 70 | 25 | 19 | 5.5 | 6 - 17 |
| GHSG-3 | 95 | 35 | 29 | 12.5 | 14 - 25 |
| GHSG-4 | 116 | 51 | 39 | 19 | 20 - 37 |
| GHSG-5 | 178 | 89 | 70 | 35.5 | 37 - 67 |
The manufacturer's drawing puts A across the whole assembly and B across the aperture in the cabinet wall, so B is a hole somebody has to punch, not a dimension of the part. Notation and worked examples: the size charts. One caution — GHSG-1 is published with a cable range of 5 - 103 mm, which cannot be right for a body supplied at a 13 mm bore. Confirm that row against the datasheet.
Physical properties
| Property | Value | Test method |
|---|---|---|
| Tensile strength | 12 N/mm² (MPa) min. | ASTM D638 |
| Ultimate elongation | 350% min. | ASTM D638 |
| Density | 1.20 ± 0.2 g/cm³ | ASTM D792 |
| Hardness | 45 ± 10 Shore D | ASTM D2240 |
| Water absorption | 0.5% max. | ASTM D570 |
Four published methods, and not one of them is a seal test — see what an end-cap datasheet proves.
Four things this gland is not
Each has been ordered off an entry-gland enquiry, and each lives somewhere else.
- Not a shroud. A cover fitted over an already-assembled gland is a different part for a different reader; that vocabulary belongs to the sibling property holding it.
- Not an end cap. A gland seals a cable that carries on through the wall. A conductor that stops is closed with a cable end cap instead.
- Not a medium-voltage entry. 600 V is the published rating, and no heavier-walled version exists in the range.
- Not a cold-fit part. Recovery needs heat at the cable, so the hot-work permit is part of the install. Where a torch is banned, the honest position is set out rather than worked around.
What gets asked before the panel is drilled
What size hole does the enclosure need?
Which size fits my cable?
Is this a seal at the cable, or a cover over the hole?
What does fume-tight add to watertight?
Where this entry sits in the rest of the site
A gland is one instance of a wire crossing a boundary and being sealed there. The first link is the same problem, deeper.
- The same crossing, buried and carrying currentAn anode lead wire goes from cable into metal below ground, with DC on the seal as well as groundwater.
- Why a sealed penetration opens againWater tracking along the cable through the wall is not the same failure as a wet panel face.
- Torch technique, by substrateRecovering a body a few centimetres from a painted steel plate.
- The manufacturer's own page for the GHSG rangeWhere the ordering variants sit. Open End publishes no price, stock position or lead time.
Getting a GHSG code confirmed
Four figures turn this into one reply rather than six: the measured diameter over the cable jacket, the enclosure wall material and thickness, the diameter of any hole already punched, and whether the entry will be washed down.