T Series Copper Lug (2/0 AWG / 70mm²) | Heavy Duty Cable Terminal with Inspection Window
PRODUCT PARAMETERS
Description
Professional T Series copper tube terminals for 70 mm2 (2/0 AWG) conductors. Features a wide 21.5 mm palm and an inspection window for visual verification of full wire insertion.
Dimensions
Data Overview
| Item No. | Wire Range (mm²/AWG) | ΦE (mm) Stud Hole | ΦD (mm) Ext. Dia | φd (mm) Int. Dia | W (mm) Width | B (mm) Barrel | L (mm) Total |
| T70-6 | 70 mm² (2/0) | 6.4 | 15 | 11.5 | 21.5 | 20 | 47.6 |
| T70-8 | 70 mm² (2/0) | 8.3 | 15 | 11.5 | 21.5 | 20 | 47.6 |
| T70-10 | 70 mm² (2/0) | 10.5 | 15 | 11.5 | 21.5 | 20 | 51.6 |
| T70-12 | 70 mm² (2/0) | 13.2 | 15 | 11.5 | 21.5 | 20 | 51.6 |
| T70-14 | 70 mm² (2/0) | 14.5 | 15 | 11.5 | 21.5 | 20 | 51.6 |
| T70-16 | 70 mm² (2/0) | 16.5 | 15 | 11.5 | 21.5 | 20 | 62.6 |
| T70-20 | 70 mm² (2/0) | 21.0 | 15 | 11.5 | 30.0 | 20 | 62.6 |
Product Features & Engineering Logic
| Key Area | Feature | Advantage | Benefit |
| Installation Safety | Inspection Window (Sight Hole) design. | Allows the installer to visually confirm that the conductor is fully inserted before crimping. | Zero Error: Prevents “partial insertion” failures, ensuring the crimp covers the actual wire strands for a safe, full-load connection. |
| Optimized Fit | Precision 11.5 mm Internal Diameter. | Specifically sized for 70 mm² (2/0 AWG) stranded copper conductors. | Gas-Tight Seal: Minimizes voids inside the barrel, ensuring a high-compression crimp that prevents oxidation of internal strands. |
| Thermal Performance | Wide Palm (21.5 mm Width). | Provides a larger contact surface area against the busbar compared to standard narrow lugs. | Cooler Operation: Reduces contact resistance at the bolted joint, significantly lowering heat generation under high current loads. |
| Durability | Seamless Copper Construction. | Manufactured from a single piece of copper tube without brazed seams. | Mechanical Strength: Eliminates the risk of the barrel splitting open under the high pressure of hydraulic crimping tools. |
FAQs
Q1: What is the difference between the T Series and the SC Series for 70mm² cable?
While both are high-quality copper lugs, the T70 Series features a slightly wider palm (21.5 mm vs 21.0 mm for SC) and is explicitly designed with an inspection window to verify wire position. This makes the T Series ideal for applications requiring strict visual quality control validation.
Q2: What crimping die should I use for T70 terminals?
You should use a standard 70 mm² hex die suitable for copper lugs. Ensure your crimping tool is rated for the wall thickness (External Diameter 15 mm) to achieve a proper compression ratio.
Q3: Can I use T70 terminals for outdoor applications?
Yes, the T Series comes with Electro-Tin Plating standard. This protects the underlying copper from environmental corrosion, making it suitable for both indoor control panels and outdoor utility boxes (when properly insulated/sealed).
