Cembre 2509742 (2A100-2M12) heavy duty electrolytic tin-plated copper compression two-hole ring terminal for 500 mm² copper conductors with dual M12 fixing.
£82.40
The Cembre 2509742 is a premium heavy duty copper compression two-hole ring terminal (type 2A100-2M12) designed to provide secure, high-current electrical connections in demanding industrial, utility and medium-voltage applications. Manufactured from high-purity electrolytic copper and electrolytically tin-plated, it delivers outstanding conductivity together with long-term resistance to corrosion and environmental exposure.
As part of the proven Cembre 2A-M Series, this terminal features a double-length seamless barrel without an inspection hole, helping maximise both electrical and mechanical performance while preventing moisture ingress. The two-hole palm provides improved stability and resistance to rotation compared with conventional single-hole terminals, making it ideal for vibration-prone installations.
Designed for 500 mm² copper conductors with dual M12 fixing holes, the Cembre 2509742 is widely used in switchgear, substations, transformers, industrial control equipment and medium-voltage cable installations up to 35 kV.
Heavy-duty compression lugs provide permanent, low-resistance electrical connections capable of carrying very high current loads while maintaining excellent mechanical integrity. Two-hole terminals offer increased resistance to loosening and rotation, making them particularly suitable for applications exposed to vibration.
The Cembre 2A-M series is trusted by electrical contractors, OEMs, utilities and industrial maintenance engineers for substations, transformers, switchgear, power distribution equipment and medium-voltage cable terminations requiring dependable long-term performance.
| Series | 2A-M Heavy Duty |
|---|---|
| Product type | Heavy duty copper compression two-hole ring terminal |
| Conductor size | 500 mm² |
| Stud size | 2 × M12 |
| Entry diameter | 30.3 mm |
| Palm width | 56.5 mm |
| Stud centres | 44.5 mm |
| Overall length | 178.5 mm |
| Material | High-purity electrolytic copper |
| Finish | Electrolytic tin plated |
| Maximum application voltage | Up to 35 kV |
| HS Code | 85369010 |
| Country of Manufacture | United Kingdom (includes NI) |
It is designed to terminate 500 mm² copper conductors using a stable two-hole M12 fixing in industrial and power distribution applications.
The dual-hole palm provides greater resistance to rotation and vibration while creating a more secure mechanical connection.
The terminal is designed specifically for 500 mm² copper conductors.
The seamless barrel helps prevent moisture and contaminants entering the crimped connection, improving long-term reliability in outdoor installations.
It is widely used in substations, transformers, switchgear, industrial control panels and medium-voltage electrical distribution systems.
Cembre heavy-duty compression terminals are trusted worldwide for delivering secure, durable and low-resistance electrical connections across industrial, utility and medium-voltage power systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...