623 Cable Gland (Group 1 Mining)
Application
Mining.
For use with non-armoured elastomer and plastic insulated cables.
For particular use with :-
a) Cables that are not effectively filled, compact and/or circular, have tape bedding or have hygroscopic fillers.
b) Cables that exhibit ‘cold flow’ characteristics.
c) Enclosures containing an ignition source.
Features
Provides a barrier seal between the individual insulated cores within the cable and prevents entry of the products of an explosion into the cable.
Assembly of the Cable Gland compresses and distributes the compound evenly to effect a barrier seal at the point of entry into the enclosure.
The compound chamber may be separated from the cured compound to ensure that the chamber has been effectively filled. If required, external voids can be repaired.
Provides a cable retention seal onto the cables outer sheath.
Two part sealing compound and assembly instructions are supplied with the Cable Gland.
Materials & Finishes
The 623 Cable Gland is manufactured in Brass (standard), Nickel Plated Brass or 316 Stainless Steel.
Brass NPT entries are nickel plated as standard.
Technical Data
Flameproof Exd I and Increased Safety Exe I. 
I M2
Baseefa Certificate No. Baseefa08ATEX0329X.
IECEx Certificate No. IECEx BAS 08.0115X.
Suitable for use in Mines.
Construction and test standards IEC/EN 60079-0, IEC/EN 60079-1 and IEC/EN 60079-7.
IP66, IP67 and IP68 ingress protection to IEC/EN 60529.
Operating temperature range -60°C to +80° as standard.
623 Cable Gland (Group 1 Mining)
| CABLE GLAND SELECTION TABLE | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size Ref. |
Entry Thread Size |
Cable Acceptance Details | ‘G’ Compressed Length |
Hexagon Dimensions |
|||||||||
| Inner Sheath/ Cores |
‘B’ Outer Sheath | ||||||||||||
| Metric | NPT * |
‘D’ Max. Over Cores |
‘E’ Max. Inner Sheath |
Max. No. Of Cores |
Standard Seal | Alternative (S) Seal |
Across Flats |
Across Corners |
|||||
| Standard | Option | Min. | Max. | Min. | Max. | ||||||||
| Os | M20 | ½" | - | 8.0 | 8.0 | 6 | 3.0 | 8.0 | - | - | 57.5 | 24.0 | 27.7 |
| O | M20 | ½" | - | 8.9 | 10.0 | 6 | 7.5 | 11.9 | - | - | 57.5 | 24.0 | 27.7 |
| A | M20 | ¾" | ½" | 11.0 | 12.5 | 10 | 11.0 | 14.3 | 8.5 | 13.4 | 56.3 | 30.0 | 34.6 |
| B | M25 | 1" | ¾" | 16.2 | 18.4 | 21 | 13.0 | 20.2 | 9.5 | 15.4 | 58.9 | 36.0 | 41.6 |
| C | M32 | 1¼" | 1" | 21.9 | 24.7 | 42 | 19.0 | 26.5 | 15.5 | 21.2 | 61.7 | 46.0 | 53.1 |
| C2 | M40 | 1½" | 1¼" | 26.3 | 29.7 | 60 | 25.0 | 32.5 | 22.0 | 28.0 | 62.6 | 55.0 | 63.5 |
| D | M50 | 2" | 1½" | 37.1 | 41.7 | 80 | 31.5 | 44.4 | 27.5 | 34.8 | 72.8 | 65.0 | 75.1 |
| E | M63 | 2½" | 2" | 47.8 | 53.5 | 100 | 42.5 | 56.3 | 39.0 | 46.5 | 75.7 | 80.0 | 92.4 |
| F | M75 | 3" | 2½" | 59.0 | 66.2/65.3 † | 120 | 54.5 | 68.2 | 48.5 | 58.3 | 77.7 | 95.0 | 109.6 |
| † Smaller value is applicable when selecting reduced NPT entry option. All Metric entry threads are 1.5mm pitch medium fit. All dimensions in millimetres (except * where dimensions are in inches). |
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Cable Gland Ordering Examples
Type/Size/Thread
e.g. 623/C/M32
623/C/1¼" NPT
Cable Gland with Alternative Seal (S)
e.g. 623/C/M32/S
623/C/1¼" NPT/S
