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2509780 Cembre 2A100-2M16 COPPER TERMINAL
Cembre 2509780 (2A100-2M16) heavy duty electrolytically tin-plated copper compression two-hole ring terminal for 500 mm² copper conductors with dual M16 fixing.
£65.92
Why Choose the Cembre 2509780 Heavy Duty Two-Hole Ring Terminal?
The Cembre 2509780 is a premium heavy duty copper compression two-hole ring terminal (type 2A100-2M16) designed to provide secure, low-resistance electrical connections for demanding industrial power distribution and medium-voltage installations. Manufactured from high-purity electrolytic copper with an electrolytically tin-plated finish, it offers outstanding electrical conductivity together with long-term protection against corrosion.
Part of the proven Cembre 2A-2M Heavy Duty Series, this terminal features a double-length seamless barrel without an inspection hole to maximise electrical and mechanical performance while preventing moisture ingress. Its two-hole palm provides superior stability and resistance to vibration, making it ideal for critical power applications requiring dependable long-term performance.
Designed for 500 mm² copper conductors with dual M16 fixing holes, the Cembre 2509780 is ideally suited to substations, transformers, switchgear, industrial control panels and medium-voltage cable installations up to 35 kV.
Key Advantages
- Heavy-duty copper compression terminal with secure two-hole fixing.
- 500 mm² conductor capacity.
- Dual M16 stud fixing provides maximum mechanical stability.
- High-purity electrolytic copper delivers excellent conductivity.
- Electrolytically tin-plated finish resists corrosion.
- Double-length barrel improves crimp quality and pull-out strength.
- Suitable for industrial, utility and medium-voltage installations up to 35 kV.
Key Features
- Cembre 2A-2M Heavy Duty Series.
- Manufacturer part number: 2509780.
- Type: 2A100-2M16.
- Designed for 500 mm² copper conductors.
- Dual M16 fixing holes.
- Annealed electrolytic copper construction.
- Electrolytically tin-plated finish.
- Long seamless barrel without inspection hole.
- Suitable for hexagonal compression crimping.
Reliable Electrical Connections for Industrial Power Systems
Heavy-duty compression lugs provide permanent, low-resistance electrical connections capable of carrying very high current loads while maintaining excellent mechanical integrity. The two-hole fixing design offers superior resistance to vibration and rotation compared with conventional single-hole terminals.
The Cembre 2A-2M series is trusted by utilities, OEMs, panel builders and industrial maintenance engineers for demanding power distribution, transformer, switchgear and medium-voltage cable applications where reliability is essential.
Typical Applications
- Industrial switchgear and distribution systems.
- Medium-voltage cable terminations.
- Power generation and utility infrastructure.
- Transformer and substation installations.
- Grounding and earthing systems.
- Heavy industrial machinery and electrical equipment.
Technical Specifications
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| Number of Fixing Holes | 2 | |
|---|---|---|
| Device Type | Copper Tube Lug | |
| Conductor Size | 500 mm² | |
| Stud Size | M16 | |
| Material | Copper | |
| Palm Angle | Straight (0°) | |
| Series | 2A-2M Heavy Duty | |
| Product type | Heavy duty copper compression two-hole ring terminal | |
| Conductor size | 500 mm² | |
| Stud size | 2 × M16 | |
| Entry diameter | 30.3 mm | |
| Palm width | 56.5 mm | |
| Stud centres | 44.5 mm | |
| Overall length | 185.5 mm | |
| Material | High-purity electrolytic copper | |
| Finish | Electrolytically tin plated | |
| Maximum application voltage | Up to 35 kV | |
| HS Code | 85369010 | |
| Country of Manufacture | United Kingdom (includes NI) |
Frequently Asked Questions
What is the Cembre 2509780 used for?
It is designed to terminate 500 mm² copper conductors onto equipment using a secure dual M16 fixing in industrial and medium-voltage applications.
Why does this terminal have two fixing holes?
The two-hole palm provides improved resistance to vibration and rotation while delivering a stronger mechanical connection.
What cable size does this terminal support?
The terminal is specifically designed for 500 mm² copper conductors.
Why is there no inspection hole?
The seamless barrel helps prevent moisture and contaminants entering the crimped connection, improving long-term reliability in demanding environments.
Where is this terminal commonly installed?
It is widely used in substations, switchgear, transformers, industrial control panels and medium-voltage power distribution systems.
Trusted by Electrical Professionals Worldwide
Cembre heavy-duty compression terminals are trusted worldwide for delivering safe, durable and dependable electrical connections across industrial, utility and medium-voltage power systems.
