Description
11. What should I provide when asking for an HMI 28mm cable gland quotation?
For accurate selection, provide:
- HMI SC028 or DC028 requirement
- Cable type
- Cable outer diameter
- Armoured/unarmoured status
- Thread requirement
- Quantity
- Application/environment
This gives the supplier enough information to verify compatibility rather than relying only on the nominal 28mm size.
12. Where can I buy HMI Brass Cable Gland 28mm in India?
HMI 28mm cable glands can be sourced through industrial electrical suppliers such as Thunderbolt Electromech. For project or bulk requirements, provide the cable details and required SC028/DC028 configuration so the appropriate product can be checked.
HMI Brass Cable Gland 28mm (1-1/8”) – Single & Double Compression
The HMI Brass Cable Gland 28mm (1-1/8″) is an industrial cable-entry solution available in Single Compression SC028 and Double Compression DC028 configurations. Manufactured by HMI with a nickel-plated brass construction, these cable glands are designed for suitable electrical and industrial cable-entry applications where secure mechanical retention and reliable cable sealing are required. HMI specifies a BSC (British Standard Conduit) entry thread for this range.
The correct variant should be selected according to the cable construction, actual cable outer diameter (OD), armour arrangement, enclosure entry and installation environment. The 28mm designation should not be treated as the cable diameter or as a guarantee of compatibility. Cable gland selection should be based on the manufacturer’s applicable dimensional and sealing requirements.
Thunderbolt’s cable-gland selection guide also recommends checking the actual cable outer diameter rather than selecting a gland only from cable conductor size in sq.mm. Cables with the same conductor size can have different outside diameters because of differences in insulation, armour and cable construction.
For a broader selection guide, see Cable Gland Supplier India: 15 Expert Tips to Choose the Right Cable Gland for Industrial Projects, which covers cable OD, cable construction, thread selection, IP protection and compression types.
HMI 28mm Single Compression Cable Gland – SC028
The HMI SC028 is the Single Compression version of the 28mm HMI cable gland range. HMI specifies Single Compression Cable Glands for indoor or outdoor applications with armoured or unarmoured cables. Its function is to grip the outer sheath of the cable. The construction is specified as nickel-plated brass, with a BSC entry thread.
Single Compression 28mm Specifications
| Specification | Details |
| Brand | HMI |
| Product Type | Single Compression Cable Gland |
| HMI Code | SC028 |
| Gland Size | 28mm |
| Inch Equivalent | 1-1/8″ |
| Material | Nickel-Plated Brass |
| Entry Thread | BSC – British Standard Conduit |
| Cable Type | Armoured / Unarmoured, subject to application and specification |
| Function | Grips outer cable sheath |
| Application | Indoor / Outdoor |
| Accessories | Earth Tag and Shroud available on request |
These specifications are based on HMI’s published Single Compression range.
When Should You Choose HMI SC028?
Choose the HMI 28mm Single Compression Cable Gland when the installation requires the SC028 configuration and the cable construction, OD and enclosure entry are compatible.
Typical applications can include:
- Electrical control panels
- Distribution equipment
- Junction boxes
- Industrial machinery
- Electrical enclosures
- Instrumentation systems
- Industrial cable-entry installations
For sizing assistance, see What Size Cable Gland Do I Need for My Project?.
HMI 28mm Double Compression Cable Gland – DC028
The HMI DC028 is the Double Compression version of the 28mm HMI cable gland range. HMI specifies this type for indoor or outdoor armoured-cable applications. The gland seals and grips the inner and outer sheath while its cone and ring arrangement clamps the cable armour.
Double Compression 28mm Specifications
| Specification | Details |
| Brand | HMI |
| Product Type | Double Compression Cable Gland |
| HMI Code | DC028 |
| Gland Size | 28mm |
| Inch Equivalent | 1-1/8″ |
| Material | Nickel-Plated Brass |
| Entry Thread | BSC – British Standard Conduit |
| Cable Type | Armoured cable |
| Function | Seals/grips inner & outer sheath |
| Armour Clamping | Cone & ring clamp the armour |
| Application | Indoor / Outdoor |
| Accessories | Earth Tag, Shroud, Stop Plug, Reducer/Adaptor available on request |
These details follow HMI’s published Double Compression specifications.
HMI 28mm Single Compression vs Double Compression
Single Compression – SC028
| Feature | HMI SC028 |
| Gland Size | 28mm (1-1/8″) |
| Construction | Nickel-Plated Brass |
| HMI Code | SC028 |
| Thread | BSC |
| Cable | Armoured / Unarmoured |
| Main Function | Grips outer sheath |
| Compression | Single |
| Typical Selection | Suitable where Single Compression is specified |
| Accessories | Earth Tag, Shroud available on request |
Double Compression – DC028
| Feature | HMI DC028 |
| Gland Size | 28mm (1-1/8″) |
| Construction | Nickel-Plated Brass |
| HMI Code | DC028 |
| Thread | BSC |
| Cable | Armoured |
| Main Function | Seals inner & outer sheath |
| Armour | Cone & ring clamp armour |
| Compression | Double |
| Typical Selection | Armoured cable installations requiring Double Compression |
| Accessories | Earth Tag, Shroud, Stop Plug, Reducer/Adaptor available on request |
HMI’s own descriptions distinguish the two primarily by cable construction and compression function rather than simply by the nominal gland size.
How to Select the Correct HMI 28mm Cable Gland
Do not select an HMI 28mm gland merely because the cable is described as a particular sq.mm size.
Before ordering, confirm:
- Cable outer diameter (OD)
- Armoured or unarmoured construction
- Single or Double Compression requirement
- Gland entry/thread requirement
- Enclosure entry
- Installation environment
- Required ingress protection
- Manufacturer/project specification
The actual cable OD is particularly important because two cables having the same conductor cross-section can have different finished outside diameters.
For more information, internally link this section to What Is IP Rating on Cable Glands and Why Does It Matter?.
Applications of HMI Brass Cable Gland 28mm
The HMI 28mm cable gland can be considered for compatible electrical and industrial cable-entry applications, including:
- Electrical panels
- Control panels
- Junction boxes
- Industrial enclosures
- Switchgear assemblies
- Machinery
- Power distribution equipment
- Instrumentation systems
- Industrial automation installations
- Infrastructure projects
The exact application should always be matched with the cable construction, gland type, thread and manufacturer’s specifications.
Why Choose Thunderbolt Electromech India Pvt. Ltd. for Cable Glands?
Choosing the correct cable gland is as important as choosing the right cable gland brand. Thunderbolt Electromech supports industrial buyers who need help matching the gland size, cable OD, compression type and application requirement.
1. Industrial Cable Gland Range
Thunderbolt Electromech supplies cable glands from established brands including HMI, Comet and Dowells, along with other cable-gland options.
2. Technical Selection Support
If you are unsure whether you require SC028 or DC028, provide the cable construction and actual OD so the appropriate product can be evaluated against the applicable specifications.
3. Multiple Cable Gland Sizes
Customers can source different cable gland sizes instead of restricting procurement to a single size.
4. Project & Bulk Order Support
Thunderbolt supports requirements from electrical contractors, panel builders, EPC companies, OEMs, industrial facilities and procurement teams.
5. Pan-India Supply
For projects requiring multiple cable gland sizes, consolidated industrial procurement and delivery support can simplify purchasing.
6. Focus on Correct Product Selection
The objective should not be simply to supply a 28mm gland. The correct product must match the cable OD, cable construction, compression type and installation requirements.
For supplier-selection guidance, internally link to Cable Gland Supplier India: How to Choose the Right Partner for Reliable Cable Management Solutions.
FAQ – HMI Brass Cable Gland 28mm
The questions below focus on the recurring purchase/search intent around cable gland sizing, OD, compression type, armoured cables, thread compatibility and installation.
1. What is an HMI Brass Cable Gland 28mm?
The HMI 28mm cable gland is a nickel-plated brass cable gland available in SC028 Single Compression and DC028 Double Compression configurations. HMI lists both as 28mm (1-1/8″) sizes with BSC entry thread.
2. What is the difference between HMI SC028 and DC028?
SC028 is the Single Compression version and HMI specifies it for armoured or unarmoured cables. DC028 is the Double Compression version specified for armoured cables, with sealing/gripping of the inner and outer sheath and armour clamping through the cone and ring arrangement.
3. Is HMI 28mm cable gland suitable for armoured cable?
The HMI SC028 is listed for armoured and unarmoured cables, while DC028 is specifically listed for armoured cable applications. Final selection should be based on the actual cable construction and applicable HMI specification.
4. Is HMI 28mm cable gland suitable for unarmoured cable?
The HMI Single Compression SC028 is listed for armoured/unarmoured cable applications. The Double Compression DC028 is listed for armoured cables.
5. Does a 28mm cable gland fit a 28mm diameter cable?
Not necessarily. The 28mm designation identifies the gland size, not automatically the acceptable cable OD. Always check the applicable HMI dimensional/sealing information and compare it with the actual cable outer diameter before ordering.
6. Should I select the HMI 28mm gland according to cable sq.mm?
No. Cable conductor size alone should not be used to select a gland. Cable outer diameter, construction, armour and gland configuration must also be considered. Thunderbolt’s sizing guide specifically recommends checking actual cable OD.
7. What material is the HMI 28mm cable gland?
HMI specifies nickel-plated brass for its Single Compression and Double Compression cable-gland ranges.
8. What thread does the HMI 28mm cable gland use?
HMI specifies BSC (British Standard Conduit) thread for these Single and Double Compression cable-gland ranges.
9. Is HMI SC028 the same as DC028?
No. SC028 and DC028 are different gland configurations. SC028 is Single Compression, whereas DC028 is Double Compression. The correct selection depends on cable construction and installation requirements.
10. Can I use Double Compression simply because it is stronger?
Not automatically. Select the compression type according to the cable construction and project requirements. HMI specifically describes DC028 for armoured cable applications, while SC028 covers armoured/unarmoured applications.
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