PG21 is an extra-large PG-thread cable gland designed for heavy-duty sealing and strain relief of thick power cables. Therefore, It is widely used in large industrial equipment, power distribution, heavy machinery, and outdoor electrical systems.
Note: Dimensions (body length, thread length, cable range, and overall size) are all customizable upon request. Please contact us with your specific requirements.
Waterproof Gland Technical Specifications
| Parameter | Specification | Notes |
|---|---|---|
| Thread Type | PG21 (German Standard) | Complies with DIN 46320 |
| Cable Diameter Range | 14.0 – 20.0 mm | Common range: 14–20mm |
| Thread Outer Diameter | 28.3 mm | Panel cutout reference value |
| Thread Length | 10 – 11 mm | Varies by manufacturer |
| Ingress Protection Rating | IP65 to IP68 | IP68 with sealing ring properly tightened |
| Material | Nylon 66 (PA66) or Brass (Nickel-Plated) | Nylon: lightweight, self-extinguishing; Brass: higher mechanical strength, corrosion-resistant |
| Sealing Material | NBR / EPDM / Silicone | Affects temperature range and chemical resistance |
| Operating Temperature (Nylon) | -40°C to +100°C | Standard nylon models; brass models similar range |
| Color | Black, Gray, Silver | Custom colors available on request |
| Accessories | Locknut, Sealing Washer, O-Ring, Earthing Ring | Available upon request |
| Customization | Yes | Length, thread length, cable range, and overall size can be customized. Contact us for details. |
Waterproof Gland Common Applications
- Heavy industrial equipment and machinery
- Large power distribution systems
- Marine and offshore installations
- Large outdoor electrical enclosures
- Motor and generator connections
Accessories
- Locknut
- Sealing Washer / O-Ring
- Earthing Ring (for brass models)
- Locking Nut (for vibration-resistant installations)
These accessories are available for separate purchase. Custom colors, materials, cable range, and sizes can be discussed with our factory.
Installation Notes
- Verify Cable Diameter: Confirm cable OD is within the specified range for your model (typically 14–20mm).
- IP Rating: IP68 protection requires proper tightening and intact sealing ring. Standard seal typically provides IP65.
- Material Selection: Nylon is suitable for most industrial applications; brass is recommended for marine, chemical, or high-mechanical-stress environments.
- Temperature Consideration: Standard models are rated -40°C to 100°C. Custom high-temperature versions available upon request.
Why Choose Xinda?
- Customizable — Length, cable range, thread size, and materials can all be tailored to your needs
- Quality assured — 100% inspected before shipment
- Flexible MOQ — No minimum order quantity
- Fast lead time — Quick turnaround for both samples and bulk orders
- Engineering support — In-house design and technical assistance available
Author
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