M40 cable gland means metric thread with hole dimension size in 40mm, this dimensions only allow the cable size in the range of 22-32mm
Metric Cable Gland is designed with the IP68 waterproof function for watertight sealing and termination appliances to keep the characteristics of throughout cables in the same level for a long time.
M40 watertight cable gland provides strain relief and connects different types of cables to resist dripping water or flammable gas enter into equipment enclosures in the hazardous area.
M40 watertight cable gland provides sealing joints for cables entering the equipment inner without any harmful substance entry. It is immune to most common chemicals and solvents, widely used in the mechanical control box, renewable energy, electrical power system, control panels, LED light facilities.