What is a cable gland and what is it used for? | ForLink
Looking for the right cable gland? Learn how to select between IP66, IP68, and IP69K ratings, understand clamping ranges, and choose materials like stainless steel for industrial enclosures. Expert guide by FORLINK.
What is a cable gland? A cable gland (also known as a cord grip or cable connector) is a critical mechanical entry device designed to secure electrical cables where they enter an enclosure—whether a junction box, control panel, or heavy machinery.
As a leading manufacturer based in Yueqing, FORLINK ensures every waterproof cable gland provides strain relief and environmental sealing to protect sensitive internal components.
Core Functions: Protection & Mechanical Support
- Strain Relief:Prevents cable terminals from being pulled out.
- Environmental Protection:Seals against dust, moisture, and corrosive elements.
- Safety:Protects cable sheaths from sharp mounting hole edges.
IP66, IP68, and IP69K: Understanding Ingress Protection
Choosing the right waterproof cable gland requires matching the IEC 60529 testing parameters to your specific environment:
- IP68:Suitable for continuous immersion. Note: FORLINK standard IP68 glands are tested for 1.5m depth for 30 minutes.
- IP69K:The highest protection for high-pressure, high-temperature wash-downs (up to 80°C). Ideal for food processing and pharmaceutical industries.
Critical Selection Checklist
| Feature | Considerations |
| Clamping Range | Must match the cable’s Outer Diameter (OD) for a certified seal. |
| Thread Type | Metric (EN 60423), PG (DIN 40430), or NPT (ANSI B1.20.1). |
| Material | Nylon (Standard), Brass (Industrial), Stainless Steel (Marine/Chemical). |
Frequently Asked Questions (FAQ)
Can an IP68 gland be used in IP69K environments?
Not necessarily. IP68 covers immersion, while IP69K covers high-pressure jets. FORLINK recommends checking the dual-certification if your application requires both.