Professional cable manufacturer
DIN 46235 · EN 13600 · IEC 61238-1 · tin-plated
HUP Series DT-Type Copper Tube Cable Lug, 6–1000 mm²
Seamless C11000 electrolytic copper tube lugs for compression termination of Class 1, 2 and 5 conductors — tin-plated, hex-crimped to DIN 48083-4, from 6 mm² to 1000 mm².
6–1000 mm²
Conductor Range
C11000
99.9% Copper
≥ 8 μm
Tin Plating
M5–M20
Bolt Sizes
DIN 46235 / EN 13600 C11000 electrolytic copper Hex crimp to DIN 48083-4 Samples per size
DIN 46235 COPPER LUGS
DIN 46235tubular lug dimensions
EN 13600copper tube terminals
IEC 61238-1compression connectors
≥ 8 μmtin plating
6–1000 mm²conductor range
Key Specifications
The essentials, at a glance
The four values a panel shop or substation crew checks on a compression lug, before the dimensional table.
99.9%
C11000 copper
8 μm min.
electro-tin plating
1 / 2 / 5
conductor classes
35 kV
maximum voltage class
Seamless
one-piece tube barrel
4
palm options: 1, 2, 4-hole
Product Overview
A compression lug is only as good as its barrel and its crimp
The HUP series is a DT-type tubular cable lug — a seamless copper tube with a flat palm — used to terminate copper conductors by compression. It is the standard Chinese and European pattern for switchgear, busbar and equipment connections, dimensioned to DIN 46235 and EN 13600.
The body is C11000 electrolytic copper at 99.9% purity, formed as a seamless one-piece tube rather than a rolled and brazed barrel: a seam is where a crimp splits and where corrosion starts. The finish is electro-tin plating of at least 8 μm, which keeps contact resistance stable in humid and industrial air and prevents the copper oxide film that raises joint temperature over time.
Conductor range runs from 6 mm² to 1000 mm², covering Class 1 solid, Class 2 stranded and Class 5 flexible copper to IEC 60228. Bolt holes run M5 to M20, with single-hole palms as standard and 2-hole or 4-hole palms for high-current busbar work. Voltage class is 600 V to 35 kV depending on the insulation system the lug is used in.
Crimping is by hexagonal compression to DIN 48083-4, with the die code marked on the lug so the tool and the lug can be matched without guesswork. Mechanical and electrical performance is verified to IEC 61238-1 — the standard that defines the pull-out and resistance limits for compression connectors.
More about the manufacturer: About SORIVO →
Key Features
Eight things that decide the joint
C11000 Electrolytic Copper
99.9% pure oxygen-free copper for maximum conductivity and a stable crimp across the barrel.
Seamless Barrel
One-piece tube formed without a seam — the point where rolled barrels split under compression does not exist.
Tin Plating ≥ 8 μm
Electro-tin plating keeps contact resistance low and prevents the oxide growth that raises joint temperature.
DIN 46235 Dimensions
Barrel and palm dimensions follow DIN 46235 and EN 13600, so standard hex dies and palm drilling match.
Class 1, 2 and 5
One family covers solid, stranded and fine-stranded copper to IEC 60228 — no second lug type for flexible cable.
Hex Crimp to DIN 48083-4
Crimped with standard hexagonal dies; the die code is marked on the lug for tool matching and records.
Multi-Hole Palms
Single-hole standard, with 2-hole and 4-hole palms for busbar and high-current connections.
IEC 61238-1 Verification
Pull-out force and resistance performance verified to the compression-connector standard.
Applications
Where DT-type lugs are used
Power distribution, switchgear and equipment terminations from 600 V control wiring to 35 kV cable ends.
01
Low-Voltage Switchgear
Cable terminations on ACBs, MCCBs and distribution boards where palm drilling must match the busbar.
02
Busbar Connections
Multi-hole palms on busbar take-offs, where two or four bolts share the current.
03
Transformer Terminations
Cable-to-bushing connections on distribution transformers and compact substations.
04
Motor & Pump Connections
Terminal-box terminations on motors and pumps, including Class 5 flexible cable.
05
Earthing & Bonding
Earth conductor terminations where a low-resistance, corrosion-stable joint is required.
06
Distribution Pillars
Street cabinets and feeder pillars, where tin plating resists humid and polluted air.
07
Marine & Offshore
Terminations exposed to salt air, where plating thickness decides service life.
08
Industrial Control
Control and power terminations inside panels built to DIN practice.
Technical Specifications
Full specification sheet
Dimensional data for the range, plus material, crimping and packaging data.
Table 1 Barrel, bolt hole and length by cross-section
| Cross-section mm² | Barrel ID mm | Bolt hole | Length mm |
|---|---|---|---|
| 6 | 3.8 | M5 / M6 / M8 | 32 |
| 16 | 5.5 | M6 / M8 / M10 | 47 |
| 50 | 10.0 | M8 / M10 / M12 / M16 | 67 |
| 120 | 15.5 | M10 / M12 / M16 / M20 | 87 |
| 240 | 21.5 | M12 / M16 / M20 | 110 |
| 400 | 27.5 | M16 / M20 | 139 |
| 630 | 35.0 | M20 | 160 |
| 1000 | 44.0 | M20 | 189 |
The 50 mm² row is highlighted as a common panel size. Barrel internal diameter is the value that must match the conductor; length is measured overall including the palm. Intermediate sizes and 2-hole or 4-hole palms are available to the same DIN 46235 dimensioning — confirm the palm drilling against the equipment terminal before ordering.
Table 2 Material, crimping and order data
| Product Identification | |
| Product type | HUP series DT-type copper tube cable lug (tubular terminal) |
| Standards | DIN 46235, EN 13600, IEC 61238-1 |
| Certification | CE, RoHS, ISO 9001 |
| Material & Finish | |
| Base material | C11000 electrolytic copper, 99.9% purity, oxygen-free |
| Surface finish | Electro-tin plated, minimum 8 μm; bright finish on request |
| Construction | Seamless copper tube, one-piece formed |
| Palm | Single hole standard; 2-hole and 4-hole on request |
| Conductor & Crimping | |
| Conductor classes | Class 1 solid, Class 2 stranded, Class 5 fine stranded to IEC 60228 |
| Cross-sections | 6 mm² to 1000 mm² (AWG 12 to AWG 4/0) |
| Voltage class | 600 V to 35 kV depending on the insulation system |
| Crimping method | Hexagonal compression per DIN 48083-4, or indent crimping |
| Pull-out force | Meets or exceeds IEC 61238-1 |
| Packaging & Logistics | |
| Packaging | Polybag, box or labelled carton to specification |
| MOQ | Negotiable per size; sample orders accepted |
| Lead time | 7–15 working days; stock sizes 3–5 days |
Select the lug by conductor cross-section and class, then by the palm drilling of the equipment terminal. A Class 5 flexible conductor needs the correct barrel bore and die; using a die sized for a Class 2 conductor gives a joint that passes a visual check and fails a pull test.
Certificates & Standards
Verify before you buy — we make it easy
DIN 46235 / EN 13600
The dimensional standards for tubular compression lugs. Barrel bore, palm thickness and hole spacing are checked per batch against the standard.
Request dimension report →IEC 61238-1
The compression-connector standard defining mechanical and electrical acceptance. Pull-out force and resistance are verified on the specified conductor class.
Request test report →CE, RoHS & ISO 9001
Declaration of conformity, RoHS statement and quality-management certificate issued with the quotation.
Request declaration →
Transparency note: certification status and exact scope should always be confirmed against the certificate for the selected product configuration. We provide the certificate and test reports with every quotation — no blank promises.
Quality & Factory
Checked before the carton is sealed
A lug either crimps or it does not; the checks are on bore, plating and crimp performance.
- 1Incoming material control — Copper grade and plating thickness checked before forming.
- 2Dimensional check — Barrel bore, palm thickness and hole spacing gauged against DIN 46235.
- 3Crimp verification — Sample lugs crimped on the matching conductor and pull-tested.
- 4Batch documentation — Material and test records issued with the order on request.
19+
countries served
60+
industrial & panel projects
100%
batch inspection before shipment
How to Order
From inquiry to loaded carton in 5 steps
Send Inquiry
Tell us the thread size, cable outer diameter and quantity — a photo of the enclosure entry helps.
Confirm Size
We confirm the gland size, sealing material and quotation within one working day.
Sample Evaluation
Samples for fit and sealing checks; stocked sizes ship in a few working days.
Bulk Production
5–15 working days depending on size and finish; stock items in 3–5 days.
Delivery & Support
Polybag or box packing, shipping documents and support on installation questions.
FAQ
Questions buyers ask before ordering
A DT-type tubular lug has a long seamless barrel for a single large conductor and a flat palm — it is the heavy power termination, dimensioned to DIN 46235. A ring terminal to DIN 46234 is a shorter barrel with a ring palm, used for control and small power conductors. Both are crimped; the barrel length and current rating differ.
A hexagonal compression tool with DIN 48083-4 dies. The die code for the conductor size is marked on the lug, so the tool and the lug can be matched without a chart. Indent crimping is acceptable where the project specifies it, but hex is the default for DIN lugs.
Yes. The range covers Class 1, 2 and 5 conductors. The bore and the die must match the class: a fine stranded conductor needs a die sized for Class 5, otherwise the strands are not fully consolidated and the joint fails a pull test even though it looks closed.
Minimum 8 μm of electro-tin. It matters in humid, coastal and industrial air: the plating is what keeps the copper oxide film from forming, and that film is what raises joint temperature and eventually loosens a bolted connection.
Yes, to the same DIN dimensioning. Multi-hole palms are used where the connection has to carry high current through several bolts, or where the joint must not rotate on a single bolt. Send the equipment terminal drawing and we will match the hole spacing.
The lug itself is a bare copper part; the voltage class of the joint is set by the cable insulation and the termination kit. In practice the range is used from 600 V control work up to 35 kV cable ends with the appropriate stress control. State the system voltage when ordering.
Yes. DT is the Chinese type designation for the tubular copper lug; HUP is the series name we use for the same DIN 46235 pattern. If a drawing says DT-120 or DT-50, it is the same part as the HUP size for that cross-section — check the palm drilling, which is where drawings actually differ.
Yes. Samples can be supplied per size, and dimension and crimp-pull records are issued with the order. If the project requires witnessed testing on your conductor, say so at inquiry stage.
Need a sample lug and a crimp check on your conductor?
Tell us the cross-section, conductor class and palm drilling — we reply within one working day.
Get a Free Quote
Send your cable lug requirement
The more detail you give, the faster and more accurate our quotation. Our engineers reply within one working day.
- Conductor cross-section and class (1, 2 or 5)
- Palm configuration: 1-hole, 2-hole or 4-hole, and hole size
- System voltage, so the termination method can be confirmed
- Quantity per size
- Whether crimp-pull records are required
Inquiry received
Thanks — our engineers will reply within one working day.
Related Products
