When working with electrical panels, junction boxes, or outdoor cable installations, choosing the right cable gland is critical for safety, durability, and proper cable management. Among the various types available, SC (Single Compression) and DC (Double Compression) cable glands – often made of brass – are two of the most commonly used options.
But what exactly sets them apart? And which one is best suited for your application?
Let’s explore.
🛠 What Are Cable Glands (Made of Brass)?
Cable glands are mechanical devices used to secure and seal the ends of electrical cables entering an enclosure. Their purpose is to:
- Provide strain relief
- Maintain ingress protection (IP)
- Prevent dust, moisture, or gas from entering electrical systems
Brass, as a material, is widely used for cable glands due to its:
» Excellent corrosion resistance
» High strength and durability
» Good electrical conductivity
You’ll often find SC and DC glands made from brass because it performs reliably in both standard and harsh environments.
🔹 SC Cable Glands (Single Compression)
Single Compression cable glands apply compression only at one point – typically on the outer sheath of the cable.
✅ Key Features:
- Suitable for armoured and unarmoured cables
- Easier and quicker to install
- Economical choice
- Ideal for indoor or less demanding environments
📦 Common Uses:
- Electrical panels
- Machinery wiring
- General indoor setups
🔸 DC Cable Glands (Double Compression)
Double Compression cable glands offer compression at two points – both the inner and outer sheaths. This provides a more secure grip and better sealing.
✅ Key Features:
- Better strain relief and environmental protection
- Designed for heavy-duty or outdoor use
- Preferred for flameproof and weatherproof applications
📦 Common Uses:
- Chemical plants
- Refineries
- Outdoor cable terminations
- Marine and mining environments
🔁 Quick Comparison: SC vs DC
| Feature | SC (Single Compression) | DC (Double Compression) |
|---|---|---|
| Compression Points | One | Two |
| Environmental Suitability | Indoor / Light-duty | Outdoor / Harsh conditions |
| Level of Protection | Basic sealing | Superior sealing & grip |
| Cost | More economical | Slightly higher |
| Installation Ease | Very simple | More robust, slightly complex |
🛒 Where to Buy?
You can find a wide range of SC and DC cable glands made of brass at
👉 BestOfElectricals.com
Whether you need a single piece or bulk quantities, we offer high-quality brass cable glands designed to meet Indian and international standards. Available in various sizes, these glands are ideal for:
» Electricians
» Industrial projects
» Control panels
» DIY electrical setups
💡 Final Word
If you're working on indoor panels or low-risk applications, SC glands are a solid and budget-friendly option. But for installations exposed to moisture, dust, or mechanical stress, DC glands provide enhanced safety and longevity.
