Short answer: cable gland models should be selected by thread type, thread size, cable outer diameter, material, IP rating, sealing structure and installation environment.
| Brass cable gland | Used for industrial panels, junction boxes and armored or non-armored cable entries. Confirm nickel plating and sealing ring requirement. |
|---|---|
| Nylon cable gland | Used for light-duty cable entry, control boxes and corrosion-sensitive environments. Confirm PA material and temperature range. |
| Thread size | Common sizes include M16, M20, M25, M32, M40, M50, PG13.5, PG16, PG21, PG29 and PG48. |
| Protection | Confirm IP68, IP67 or project sealing requirement before selecting the gland. |
A cable gland with the right thread can still be wrong if the cable outer diameter range or sealing rating does not match.