ES70-10 Bell-Mouth Copper Lug (2/0 AWG / 70mm²) | M10 Stud Flare-End Battery Terminal
PRODUCT PARAMETERS
Description
High-performance ES70-10 bell-mouth copper lug for 2/0 AWG (70mm²) cables. Features an 10.5mm (M10) stud hole and flare-end design for easy insertion of flexible strands. Tin-plated for maximum corrosion resistance in marine and solar systems.
Dimensions
Data Overview
| Item No. | Wire Range (mm²/AWG) | ΦE (mm) Stud Hole | ΦD (mm) | φd (mm) | W (mm) | B (mm) | L (mm) |
| ES70-8 | 70mm² (2/0) | 8.3 | 15.0 | 11.5 | 21.5 | 22.0 | 51.0 |
| ES70-10 | 70mm² (2/0) | 10.5 | 15.0 | 11.5 | 21.5 | 22.0 | 54.0 |
| ES70-12 | 70mm² (2/0) | 13.0 | 15.0 | 11.5 | 21.5 | 22.0 | 54.0 |
Product Features & Engineering Logic
| Key Area | Feature | Advantage | Benefit |
| Easy Installation | Bell-Mouth (Flare-End) entry design. | Prevents “stray strands” when inserting flexible 2/0 AWG cables into the barrel. | Efficiency: Reduces assembly time and ensures 100% of cable strands are included in the crimp for maximum safety. |
| Marine Reliability | Tin-Plated coating over a seamless copper body. | Protects the copper from “green death” corrosion in humid or salt-spray environments. | Longevity: Maintains a low-resistance connection for years, preventing power loss in harsh conditions. |
| High Load Capacity | Thick-walled 99.9% pure copper construction. | Offers the highest possible electrical conductivity and mechanical strength. | Safety: Handles high-amperage surges without overheating, protecting your expensive solar inverters and battery banks. |
| Universal Fit | Optimized M10 (10.5mm) stud hole. | Perfectly matches the connection bolts on modern LiFePO4 batteries and heavy-duty busbars. | Versatility: Provides a flush, secure mounting surface that resists loosening under high-vibration use. |
FAQs
Q1: What is the benefit of the Bell-Mouth (Flare-End) design?
High-strand 2/0 AWG cables often fray at the ends. The bell-mouth acts as a funnel, guiding all fine copper strands smoothly into the barrel without snagging, which is critical for a complete and safe electrical connection.
Q2: Can I use this for 12V and 48V battery systems?
Yes. These lugs are rated for high-voltage applications but are most commonly used in 12V-48V DC systems for solar storage, RVs, and marine battery banks due to their high conductivity.
Q3:Is hydraulic crimping required?
For 70mm² (2/0 AWG) wire, we strongly recommend a hydraulic crimping tool with 70mm² dies to ensure a gas-tight, permanent bond.
