Description
HMI Brass Cable Gland 70mm (2-3/4”) – Single & Double Compression
The HMI Brass Cable Gland 70mm (2-3/4”) is a nickel-plated brass cable-entry solution available in two configurations: Single Compression SC070 and Double Compression DC070. HMI lists both 70mm models in its current cable-gland range, with a BSC (British Standard Conduit) entry thread.
The correct choice between Single and Double Compression should be based on the cable construction and installation requirements rather than the nominal 70mm size alone. Cable selection should consider the actual cable outer diameter (OD), armoured or unarmoured construction, thread requirement, installation environment and required protection level.
For a detailed selection process, engineers and purchase teams can refer to Thunderbolt’s Cable Gland Supplier India: 15 Expert Tips to Choose the Right Cable Gland.
HMI SC070 70mm (2-3/4”) Single Compression Cable Gland
The HMI SC070 is the Single Compression version of the 70mm HMI Cable Gland. According to HMI, the Single Compression range is suitable for armoured and unarmoured cables and is designed to grip the outer sheath of the cable. It is manufactured from nickel-plated brass and uses a BSC entry thread.
It can be considered where the installation requires a single-compression cable entry arrangement and the cable construction and dimensions are compatible with the selected gland.
Key features
- Model: SC070
- Nominal size: 70mm (2-3/4″)
- Material: Nickel-plated brass
- Thread: BSC
- Cable type: Armoured / unarmoured, subject to correct selection
- Function: Grips the outer cable sheath
- Application: Indoor or outdoor cable-gland applications
- Accessories such as Earth Tag and Shroud are available on request from HMI.
HMI DC070 70mm (2-3/4”) Double Compression Cable Gland
The HMI DC070 is the Double Compression version. HMI specifies this range for armoured cables. Its design seals and grips the inner and outer cable sheath while the cone and ring clamp the armour. Like the Single Compression version, it is made from nickel-plated brass and uses a BSC entry thread.
This makes the Double Compression configuration appropriate when the cable construction and installation require the additional compression and armour-clamping arrangement.
Key features
- Model: DC070
- Nominal size: 70mm (2-3/4″)
- Material: Nickel-plated brass
- Thread: BSC
- Cable type: Armoured cable
- Function: Seals/grips inner and outer sheath
- Armour: Cone and ring clamp the armour
- Application: Indoor or outdoor cable-gland applications
- Earth Tag, Shroud, Stop Plug, Reducer/Adaptor are available on request from HMI.
Single Compression vs Double Compression – 70mm
| Specification | HMI SC070 – Single Compression | HMI DC070 – Double Compression |
| Model | SC070 | DC070 |
| Nominal gland size | 70mm (2-3/4″) | 70mm (2-3/4″) |
| Material | Nickel-plated brass | Nickel-plated brass |
| Thread | BSC | BSC |
| Cable construction | Armoured / unarmoured | Armoured |
| Main function | Grips outer sheath | Seals/grips inner & outer sheath |
| Armour clamping | Not the primary function | Cone & ring clamp armour |
| Typical selection | Compatible armoured or unarmoured installations | Compatible armoured cable installations |
| Accessories | Earth Tag, Shroud available on request | Earth Tag, Shroud, Stop Plug, Reducer/Adaptor available on request |
| Correct selection basis | Cable OD, construction, thread and application | Cable OD, construction, armour, thread and application |
Important: 70mm (2-3/4″) is the nominal gland size. It should not automatically be interpreted as a 70mm cable outside-diameter range. The actual cable OD and manufacturer’s dimensional data should be checked before ordering. HMI identifies SC070/DC070 as 70mm models, but the manufacturer page does not publish a generic cable-OD range there.
How to Choose the Correct HMI 70mm Cable Gland
Before ordering the HMI 70mm Cable Gland, check:
1. Check the actual cable OD
Measure the complete outside diameter of the cable or obtain it from the cable manufacturer’s datasheet.
Do not select a gland simply because the cable has a particular conductor size. Cable construction and insulation thickness can change the overall diameter.
For more information, read What Size Cable Gland Do I Need for My Project?.
2. Check whether the cable is armoured
For an unarmoured or compatible armoured installation, the HMI Single Compression configuration may be appropriate.
For an armoured installation requiring inner/outer sheath compression and armour clamping, the HMI Double Compression configuration should be evaluated.
You can also read Armoured vs Unarmoured Cable Glands: Which One Do You Actually Need?.
3. Check the thread
The HMI SC070 and DC070 manufacturer listings specify BSC entry thread. Verify that the enclosure, panel or equipment entry is compatible before ordering.
4. Consider the installation environment
Indoor and outdoor installations can have different requirements. Consider exposure to moisture, dust, chemicals, UV, mechanical stress and other environmental factors before final gland selection.
For background on protection requirements, see What Is IP Rating on Cable Glands and Why Does It Matter?.
Applications
The HMI Brass Cable Gland 70mm can be considered for industrial cable-entry applications where the SC070 or DC070 configuration, cable dimensions and BSC thread match the installation requirements.
Potential applications include:
- Industrial electrical panels
- Control panels
- Distribution equipment
- Power and electrical installations
- Industrial machinery
- Cable-entry points
- Electrical enclosures
- Armoured cable installations
- Outdoor electrical equipment
- Industrial cable-management systems
The final selection should always be made against the actual cable construction, dimensions, gland specification and project requirements.
Why Choose Thunderbolt Electromech India Pvt. Ltd. for Cable Glands?
Thunderbolt Electromech India Pvt. Ltd. focuses on supplying industrial electrical and cable-management products for engineers, contractors, industries and purchase departments.
When purchasing the HMI 70mm Cable Gland, Thunderbolt can help customers identify the appropriate configuration based on the information available for their installation.
Key reasons to choose Thunderbolt:
- HMI Cable Gland availability
- Single and Double Compression options
- Support for industrial cable-gland requirements
- Product selection based on cable construction and application
- Suitable for bulk and project requirements
- PAN-India supply support
- Industrial electrical product range
- Support for engineers, contractors and procurement teams
- Availability of other cable-gland sizes and configurations
For a broader overview of available products, visit the Cable Gland category.
For project-level selection, use the Cable Gland Supplier India – 15 Expert Tips guide.
Frequently Asked Questions
1. What is an HMI 70mm Cable Gland?
The HMI 70mm Cable Gland is available as SC070 Single Compression and DC070 Double Compression. HMI specifies both as 70mm (2-3/4″) models made from nickel-plated brass with BSC entry thread.
2. What is the difference between HMI SC070 and DC070?
SC070 is the Single Compression version and grips the outer sheath. DC070 is the Double Compression version for armoured cables and seals/grips the inner and outer sheath while clamping the armour with the cone and ring.
3. Does a 70mm Cable Gland fit a 70mm diameter cable?
Not necessarily. 70mm is the nominal gland size, not automatically the acceptable cable outside diameter. The actual cable OD, construction and manufacturer’s dimensional data should be checked before selecting the gland.
4. Is HMI 70mm Single Compression suitable for armoured cable?
HMI states that its Single Compression Cable Gland range is suitable for armoured and unarmoured cables. The specific installation should still be checked against cable construction and gland-selection requirements.
5. Is HMI DC070 suitable for armoured cable?
Yes. HMI specifies the Double Compression range for armoured cables, with the cone and ring used to clamp the armour.
6. What thread does the HMI 70mm Cable Gland use?
The HMI manufacturer specifies BSC (British Standard Conduit) entry thread for both Single and Double Compression ranges.
7. How do I know whether I need Single or Double Compression?
Start with the cable construction and project specification. Single Compression grips the outer sheath, while Double Compression provides inner/outer sheath compression and armour clamping for armoured cables.
8. Can I select a cable gland based only on cable sq.mm size?
It is not recommended. Conductor size alone does not establish the correct gland. Check the complete cable OD, construction, armour, thread and application requirements.
9. What material is the HMI 70mm Cable Gland made from?
HMI specifies nickel-plated brass for its Single and Double Compression Cable Gland ranges.
10. Are accessories available for HMI 70mm Cable Glands?
Yes. HMI lists accessories including Earth Tags and Shrouds. For the Double Compression range, HMI also lists Stop Plugs and Reducer/Adaptor options on request.
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