Cable gland Rittal SZ 2843.500 M50 for cable Ø 38 mm, silver

The Rittal SZ 2843.500 Silver is a metal cable gland designed for routing and securing cables where an electrically conductive connection between the cable shield and the enclosure is required. The gland supports cable diameters up to 3.8 cm and uses an M50 connecting thread. It is supplied with a lock nut that cuts into painted surfaces to ensure contact conductivity when tightened.

Advantages

The gland allows optional interruption or removal of the cable outer sheath at the contact point while retaining the cable shield inside the enclosure, enabling effective EMI screening. The integrated lock nut creates a conductive connection with the enclosure paint when screwed down, simplifying installation and ensuring electrical continuity without additional treatment. The metal construction provides mechanical protection and reliable fixation of the cable.

Suitable for

• Applications requiring electromagnetic compatibility (EMC) and shield grounding.
• Enclosures and control cabinets where a robust, conductive cable entry is needed.
• Cables with diameters up to approximately 38 mm.

When it may not be suitable

This gland may not be suitable for installations where a non-conductive or fully insulated cable entry is required, as it is intended to provide a conductive connection between shield and enclosure. It is also not appropriate where the mating thread or mounting hole is incompatible with an M50 thread size.

Key specifications

• Body material: metal (silver finish)
• Connecting thread type: M50
• Acceptable cable diameter: up to 3.8 cm
• Shielding function: retains cable shield inside enclosure for conductive contact
• Includes lock nut that forms conductive contact with painted surfaces when tightened

How to use

Drill or use the appropriate M50 threaded hole in the enclosure, insert the gland and secure it with the supplied lock nut. If required, interrupt or remove the cable sheath at the contact point inside the enclosure so the cable shield can be retained and make contact. Tighten the lock nut until it cuts into the paint to establish a conductive connection between the gland and the enclosure. Ensure the selected cable diameter is within the gland's specified range before installation.

What to consider before purchase

• Verify that your enclosure has or can be prepared with an M50 threaded entry.
• Confirm the cable outer diameter does not exceed approximately 3.8 cm.
• Determine whether a conductive shield connection to the enclosure is required for EMI grounding.

Usage recommendations

For reliable EMI performance, ensure the cable shield is properly exposed and retained inside the enclosure and tighten the lock nut until it makes firm conductive contact with the enclosure surface. Check compatibility with enclosure thread and paint thickness before final installation.