Description
HMI Brass Cable Gland 19mm (3/4”) – Single & Double Compression
The HMI Brass Cable Gland 19mm (3/4”) is a nickel-plated brass cable entry solution available in Single Compression (SC019) and Double Compression (DC019) configurations. HMI specifies both versions with a BSC (British Standard Conduit) entry thread. The Single Compression version is suitable for armoured and unarmoured cable applications, while the Double Compression version is designed for armoured cable applications and uses a cone-and-ring arrangement to clamp the armour.
For correct selection, do not choose a cable gland only by the conductor size in sq.mm. The actual outside diameter (OD) of the finished cable, cable construction, gland type, thread and installation conditions should be checked before ordering.
For a detailed selection process, see our Cable Gland Supplier India buying guide.
HMI 19mm Single Compression Cable Gland – SC019
The HMI SC019 19mm (3/4”) Single Compression Cable Gland is made from nickel-plated brass and is specified for indoor or outdoor cable-entry applications involving armoured or unarmoured cables.
Its compression mechanism grips the outer sheath of the cable, providing a controlled cable-entry arrangement for suitable installations.
SC019 Specifications
| Specification | Details |
| Brand | HMI |
| Product Type | Single Compression Cable Gland |
| Model / Code | SC019 |
| Gland Size | 19mm (3/4”) |
| Material | Nickel-Plated Brass |
| Entry Thread | BSC – British Standard Conduit |
| Cable Type | Armoured / Unarmoured |
| Application | Indoor / Outdoor |
| Main Function | Grips outer cable sheath |
| Accessories | Earth Tag, Shroud available on request |
HMI’s current manufacturer information lists SC019 as 19mm (3/4″) and specifies nickel-plated brass construction, BSC entry thread and suitability for armoured/unarmoured cable applications.
When should you choose SC019?
Choose the Single Compression SC019 when the cable and installation specification calls for a single-compression gland and the cable’s actual dimensions fall within the applicable manufacturer’s selection range.
The nominal 19mm (3/4″) designation should not be treated as the cable’s actual outer diameter.
For more information about selecting a gland according to cable diameter, read our cable gland size selection guide.
HMI 19mm Double Compression Cable Gland – DC019
The HMI DC019 19mm (3/4”) Double Compression Cable Gland is a nickel-plated brass gland designed for armoured cable applications.
Unlike a single compression gland, the double compression design provides sealing/gripping of the inner and outer cable sheath, while the cone and ring arrangement clamps the cable armour.
DC019 Specifications
| Specification | Details |
| Brand | HMI |
| Product Type | Double Compression Cable Gland |
| Model / Code | DC019 |
| Gland Size | 19mm (3/4”) |
| Material | Nickel-Plated Brass |
| Entry Thread | BSC – British Standard Conduit |
| Cable Type | Armoured |
| Application | Indoor / Outdoor |
| Main Function | Seals inner & outer sheath and clamps armour |
| Armour Clamping | Cone & Ring |
| Accessories | Earth Tag, Shroud, Stop Plug, Reducer / Adaptor available on request |
HMI specifically lists DC019 as 19mm (3/4″) and describes the Double Compression model as suitable for armoured cables, with inner/outer sheath sealing and armour clamping.
Single Compression vs Double Compression – HMI 19mm
Single Compression – SC019
| Feature | HMI SC019 |
| Size | 19mm (3/4”) |
| Code | SC019 |
| Material | Nickel-Plated Brass |
| Thread | BSC |
| Cable | Armoured / Unarmoured |
| Compression | Single |
| Primary Function | Grips outer sheath |
| Armour Clamping | Not the defining function |
| Application | Indoor / Outdoor |
| Best suited for | Applications specified for single compression |
Double Compression – DC019
| Feature | HMI DC019 |
| Size | 19mm (3/4”) |
| Code | DC019 |
| Material | Nickel-Plated Brass |
| Thread | BSC |
| Cable | Armoured |
| Compression | Double |
| Primary Function | Seals inner & outer sheath |
| Armour Clamping | Cone & Ring |
| Application | Indoor / Outdoor |
| Best suited for | Armoured cable applications requiring double compression |
The difference is therefore not simply the 19mm size. The correct version depends on cable construction and the installation specification. HMI’s manufacturer information explicitly distinguishes the application and function of the two designs.
How to Choose the Correct HMI 19mm Cable Gland
Before ordering an HMI 19mm cable gland, check these points:
1. Check the actual cable OD
Measure the finished cable’s outside diameter or obtain it from the cable manufacturer’s datasheet.
Do not assume that a 19mm gland automatically means a 19mm cable diameter.
2. Identify the cable construction
Determine whether the cable is:
- Armoured
- Unarmoured
- Single-core
- Multicore
3. Select Single or Double Compression
For suitable armoured/unarmoured applications, SC019 may be selected when the specification calls for single compression.
For armoured cable applications requiring the HMI double-compression design, select DC019.
4. Check the thread
HMI specifies the entry thread for these products as BSC – British Standard Conduit. Verify that the enclosure or equipment entry is compatible before ordering.
5. Consider the installation environment
For outdoor installations, verify the complete gland, enclosure and installation requirements rather than assuming that the nominal gland size alone determines environmental protection.
Our related guide explains IP rating on cable glands and why the gland and enclosure requirements need to be considered together.
Applications of HMI Brass Cable Gland 19mm
The HMI 19mm cable gland can be considered for suitable electrical cable-entry applications where the required gland construction, size and thread match the installation.
Typical applications can include:
- Electrical control panels
- Distribution panels
- Industrial electrical enclosures
- Control equipment
- Machinery
- Industrial wiring
- Cable termination systems
- Electrical equipment entry points
- Panel-building applications
- Maintenance and replacement projects
- Industrial cable-management installations
For armoured-cable installations, the choice between Single and Double Compression should be based on the cable construction and project specification.
Read our detailed guide on Armoured vs Unarmoured Cable Glands before selecting the gland type.
Common Cable Gland Selection Problems
| Customer Problem | Possible Reason | Recommended Approach |
| Gland does not fit the cable | Cable OD was not checked | Verify actual cable OD |
| Gland is loose around the cable | Cable is outside the applicable range | Check manufacturer selection data |
| Gland cannot fit the enclosure | Thread or entry differs | Check BSC and enclosure entry |
| Buyer is unsure between SC019 and DC019 | Cable construction not identified | Confirm armoured/unarmoured requirement |
| Wrong gland ordered from cable sq.mm | Conductor size used as the only parameter | Check cable OD and construction |
| Outdoor installation requires sealing | Environmental requirements not checked | Verify complete installation requirements |
| Installer needs armour clamping | Incorrect gland type selected | Check whether Double Compression is specified |
Why Choose Thunderbolt Electromech India Pvt. Ltd. for Cable Gland?
Thunderbolt Electromech India Pvt. Ltd. supplies cable glands and electrical accessories for contractors, engineers, panel builders, industries, OEMs, EPC companies and purchase teams.
When buying an HMI cable gland, the important part is not simply finding a product with the correct nominal size. The product should be matched with the cable OD, cable construction, compression type, thread and installation requirements.
Thunderbolt’s Cable Gland range includes HMI, Comet, Dowells and other cable gland options, allowing buyers to compare suitable brands and configurations for different project requirements. The current Thunderbolt catalogue also lists the HMI 19mm (3/4″) Single/Double Compression Cable Gland as a selectable product.
Key reasons to buy from Thunderbolt:
- HMI cable gland options across multiple sizes
- Single and Double Compression variants
- Support for industrial and project requirements
- Multiple cable-gland brands available
- Bulk order support
- PAN-India supply
- Assistance with product identification and size selection
- Suitable for contractors, engineers and purchase departments
- Electrical product sourcing from Delhi
For larger requirements, provide the gland size, compression type, cable OD, cable construction and quantity when requesting a quotation.
Frequently Asked Questions
1. What is an HMI 19mm cable gland?
An HMI 19mm cable gland is a cable-entry gland in HMI’s range identified as 19mm (3/4″). HMI offers this size as SC019 Single Compression and DC019 Double Compression, both specified in nickel-plated brass with BSC entry thread.
2. What is the difference between HMI SC019 and DC019?
SC019 is the Single Compression version and grips the outer cable sheath. DC019 is the Double Compression version for armoured cables; it seals the inner and outer sheath and uses a cone-and-ring arrangement to clamp the armour.
3. Is HMI 19mm cable gland suitable for armoured cable?
Yes, HMI specifies SC019 for armoured/unarmoured cable applications. HMI specifies DC019 specifically for armoured cable applications. The correct selection should still be based on the actual cable construction and installation specification.
4. Does a 19mm cable gland fit a 19mm diameter cable?
Not necessarily. The 19mm designation identifies the gland size; it should not automatically be interpreted as the exact cable OD that the gland accepts. Check the cable manufacturer’s dimensions and the applicable gland selection range before ordering.
5. How do I select the correct cable gland size?
Check the cables actual outside diameter, construction, armouring, required compression type and thread. Our cable gland size selection guide explains the selection process in more detail.
6. What thread does the HMI 19mm cable gland use?
HMI specifies BSC (British Standard Conduit) as the entry thread for its SC019 and DC019 cable glands. Always verify the enclosure entry before installation.
7. What material is HMI 19mm cable gland made from?
HMI specifies nickel-plated brass for both its Single Compression and Double Compression cable-gland ranges, including the 19mm versions.
8. Which is better, Single Compression or Double Compression?
Neither is universally “better.” The correct choice depends on the cable and installation. SC019 is the Single Compression option, while DC019 is designed for armoured cables with inner/outer sheath sealing and armour clamping.
9. Can HMI 19mm cable glands be used outdoors?
HMI specifies both Single and Double Compression cable glands for indoor or outdoor applications. The complete installation should nevertheless be checked for the required environmental and sealing performance.
10. What accessories are available for HMI 19mm cable glands?
For the Single Compression range, HMI lists Earth Tag and Shroud as accessories available on request. For the Double Compression range, HMI additionally lists Stop Plug and Reducer/Adaptor options.
11. Can I select the HMI 19mm gland only from cable sq.mm?
No. Conductor size alone is insufficient. The cable’s completed outside diameter and construction should also be considered. This is particularly important because cables with similar conductor sizes can have different finished dimensions.
12. Can Thunderbolt help with HMI cable gland selection?
Yes. For a more accurate recommendation, provide the cable manufacturer, cable OD, cable construction, armoured/unarmoured status, required compression type, thread and quantity.
Reviews
There are no reviews yet.