Ergom Brass Cable Gland PG21 IP68 MDW 21H

The Ergom MDW 21H brass cable gland is a robust solution engineered for the secure and reliable entry of cables into electrical enclosures, junction boxes, and control panels. Constructed from high-quality brass, this component provides exceptional mechanical strength and long-term durability, making it suitable for demanding industrial environments where equipment protection is paramount.

Advantages

The primary benefit of this cable gland is its superior sealing capability, which is certified to an IP68 ingress protection rating. This ensures that the connection remains completely dust-tight and waterproof even when submerged, effectively shielding sensitive electrical components from moisture, dirt, and environmental contaminants. Furthermore, the brass construction offers excellent resistance to corrosion and mechanical impact, providing a stable and secure strain relief that prevents cables from being pulled or damaged during operation.

Suitable for

• Industrial electrical enclosures and control cabinets
• Outdoor installations requiring moisture protection
• Machinery and automation systems
• Environments exposed to dust and water spray

When it may not be suitable

This cable gland is designed specifically for PG21 threaded openings and may not be compatible with metric or NPT threaded ports without the use of appropriate adapters. It is also not intended for use in high-temperature environments that exceed the thermal limits of the internal sealing gaskets.

Key specifications

• Thread size: PG21
• Material: Brass
• Ingress protection: IP68
• Function: Cable strain relief and environmental sealing

How to use

To install the Ergom MDW 21H, first ensure that the enclosure opening is correctly sized for a PG21 thread. Insert the cable through the gland body, then tighten the cap nut firmly. As the nut is tightened, the internal seal compresses around the cable jacket, creating a secure, airtight, and watertight connection. Ensure that the locknut is tightened against the enclosure wall to prevent the gland from loosening due to vibration.

What to consider before purchase

• Verify that your enclosure has a PG21 threaded hole or a hole of the correct diameter for a PG21 gland.
• Check the outer diameter of your cable to ensure it falls within the clamping range of the PG21 size.
• Confirm the environmental conditions of your installation site to ensure brass is the appropriate material for your specific application.

Usage recommendations

For optimal performance and to maintain the IP68 rating, ensure the cable is inserted straight and the cap nut is tightened sufficiently to compress the seal evenly around the cable sheath. Avoid over-tightening with excessive force, which could damage the threads.