Photos show the series. Individual models differ in size.
Busbar & Tension Fittings
NLL Bolted Aluminium Alloy Tension Clamps
NLL tension clamps are bolted aluminium alloy dead-end clamps for overhead lines rated 10 kV and below, and for power plants and substations.
- Series
- NLL
- Material
- Aluminium alloy
- Voltage class
- ≤ 10 kV
- Model entries
- 10
Used inOverhead Distribution Lines
Choose a model
Model
NLL-1
- Insulated aluminium conductor, stripped (mm²)
- 35-95
- Insulated ACSR conductor, stripped (mm²)
- 35-70
- Clamping range (mm)
- Φ7.6–16.5
- U-bolts (qty)
- 2
- U-bolt diameter
- M10
- C
- 19
- M
- 16
- Nominal failure load (kN)
- 60
- Matching insulation cover
- NLLZ-190
Model
NLL-1(190)
- Insulated aluminium conductor, stripped (mm²)
- 35-95
- Insulated ACSR conductor, stripped (mm²)
- 35-70
- Clamping range (mm)
- Φ7.6–16.5
- U-bolts (qty)
- 2
- U-bolt diameter
- M10
- C
- 19
- M
- 16
- Nominal failure load (kN)
- 60
- Matching insulation cover
- NLLZ-190
Model
NLL-2
- Insulated aluminium conductor, stripped (mm²)
- 95-150
- Insulated ACSR conductor, stripped (mm²)
- 70-120
- Clamping range (mm)
- φ8.5-20
- U-bolts (qty)
- 2
- U-bolt diameter
- M12
- C
- 23
- M
- 16
- Nominal failure load (kN)
- 60
- Matching insulation cover
- NLLZ-230
Model
NLL-2(230)
- Insulated aluminium conductor, stripped (mm²)
- 95-150
- Insulated ACSR conductor, stripped (mm²)
- 70-120
- Clamping range (mm)
- φ8.5-20
- U-bolts (qty)
- 2
- U-bolt diameter
- M12
- C
- 23
- M
- 16
- Nominal failure load (kN)
- 60
- Matching insulation cover
- NLLZ-230
Model
NLL-3
- Insulated aluminium conductor, stripped (mm²)
- 150-240
- Insulated ACSR conductor, stripped (mm²)
- 120-150
- Clamping range (mm)
- φ11.4–23
- U-bolts (qty)
- 2
- U-bolt diameter
- M12
- C
- 28.5
- M
- 16
- Nominal failure load (kN)
- 80
- Matching insulation cover
- NLLZ-285
Model
NLL-3(285)
- Insulated aluminium conductor, stripped (mm²)
- 150-240
- Insulated ACSR conductor, stripped (mm²)
- 120-150
- Clamping range (mm)
- φ11.4–23
- U-bolts (qty)
- 2
- U-bolt diameter
- M12
- C
- 28.5
- M
- 16
- Nominal failure load (kN)
- 80
- Matching insulation cover
- NLLZ-285
Model
NLL-4
- Insulated aluminium conductor, stripped (mm²)
- 240-300
- Insulated ACSR conductor, stripped (mm²)
- 150-240
- Clamping range (mm)
- ф12.7-26.5
- U-bolts (qty)
- 2
- U-bolt diameter
- M12
- C
- 32
- M
- 16
- Nominal failure load (kN)
- 80
- Matching insulation cover
- NLLZ-320
Model
NLL-4(320)
- Insulated aluminium conductor, stripped (mm²)
- 240-300
- Insulated ACSR conductor, stripped (mm²)
- 150-240
- Clamping range (mm)
- ф12.7-26.5
- U-bolts (qty)
- 2
- U-bolt diameter
- M12
- C
- 32
- M
- 16
- Nominal failure load (kN)
- 80
- Matching insulation cover
- NLLZ-320
Model
NLL-5
- Insulated aluminium conductor, stripped (mm²)
- Not specified
- Insulated ACSR conductor, stripped (mm²)
- 240-300
- Clamping range (mm)
- 13-30
- U-bolts (qty)
- 3
- U-bolt diameter
- M14
- C
- 35
- M
- 16
- Nominal failure load (kN)
- 80
- Matching insulation cover
- NLLZ-350
Model
NLL-5(350)
- Insulated aluminium conductor, stripped (mm²)
- Not specified
- Insulated ACSR conductor, stripped (mm²)
- 240-300
- Clamping range (mm)
- 13-30
- U-bolts (qty)
- 3
- U-bolt diameter
- M14
- C
- 35
- M
- 16
- Nominal failure load (kN)
- 80
- Matching insulation cover
- NLLZ-350
Compare all 10 models in a table
| Save model | Model | Insulated aluminium conductor, stripped (mm²) | Insulated ACSR conductor, stripped (mm²) | Clamping range (mm) | U-bolts (qty) | U-bolt diameter | C | M | Nominal failure load (kN) | Matching insulation cover |
|---|---|---|---|---|---|---|---|---|---|---|
| 35-95 | 35-70 | Φ7.6–16.5 | 2 | M10 | 19 | 16 | 60 | NLLZ-190 | ||
| 35-95 | 35-70 | Φ7.6–16.5 | 2 | M10 | 19 | 16 | 60 | NLLZ-190 | ||
| 95-150 | 70-120 | φ8.5-20 | 2 | M12 | 23 | 16 | 60 | NLLZ-230 | ||
| 95-150 | 70-120 | φ8.5-20 | 2 | M12 | 23 | 16 | 60 | NLLZ-230 | ||
| 150-240 | 120-150 | φ11.4–23 | 2 | M12 | 28.5 | 16 | 80 | NLLZ-285 | ||
| 150-240 | 120-150 | φ11.4–23 | 2 | M12 | 28.5 | 16 | 80 | NLLZ-285 | ||
| 240-300 | 150-240 | ф12.7-26.5 | 2 | M12 | 32 | 16 | 80 | NLLZ-320 | ||
| 240-300 | 150-240 | ф12.7-26.5 | 2 | M12 | 32 | 16 | 80 | NLLZ-320 | ||
| Not specified | 240-300 | 13-30 | 3 | M14 | 35 | 16 | 80 | NLLZ-350 | ||
| Not specified | 240-300 | 13-30 | 3 | M14 | 35 | 16 | 80 | NLLZ-350 |
How to select
- Select by conductor type and size. If the conductor is wrapped with aluminium tape, size the clamp by the wrapped outer diameter.
- Cast in high-strength aluminium alloy and heat treated.
- Ambient temperature: -30°C to 90°C.
- Matching insulation covers are listed per model and ordered separately or with a Z suffix.
