Cembre MTMA70-35-GC aluminium reducer compression through connector for reducing 70 mm² to 35 mm² aluminium conductors with grease-filled barrel and central stop.
£19.20
The Cembre 2720940 MTMA70-35-GC is a premium aluminium reducer compression through connector (straight splice) designed to create secure, permanent electrical joints between 70 mm² and 35 mm² aluminium conductors. Manufactured by Cembre, it delivers dependable electrical performance for industrial, utility and power distribution applications.
Part of the trusted Cembre MTMA-GC series, the connector is manufactured from EN AW-1050A aluminium with a purity exceeding 99.5%. The blind barrel incorporates an integrated central stop together with corrosion-inhibiting grease and sealing compound to minimise oxidation while ensuring reliable long-term electrical performance.
Designed for reducing cable connections between 70 mm² and 35 mm² aluminium conductors, the MTMA70-35-GC is ideal for utilities, industrial maintenance, switchgear manufacture, panel builders and electrical contractors requiring dependable aluminium cable transitions for installations up to 18/30 kV (33 kV system).
Compression reducer connectors provide permanent, low-resistance electrical joints between different sizes of aluminium conductors. When installed using approved Cembre compression tooling and dies, they deliver excellent electrical conductivity together with outstanding mechanical retention and long-term reliability.
The MTMA70-35-GC incorporates a grease-filled barrel, sealing compound and integrated conductor stop to minimise oxidation and moisture ingress, making it suitable for industrial electrical installations, substations, switchgear and utility distribution networks.
| Series | MTMA-GC |
|---|---|
| Manufacturer Part Number | 2720940 |
| Product type | Aluminium reducer compression through connector |
| Conductor size | 70 mm² to 35 mm² aluminium |
| Material | EN AW-1050A aluminium (>99.5% purity) |
| Largest internal diameter | 11 mm |
| Smallest internal diameter | 8 mm |
| Overall length | 106.5 mm |
| Cable stripping length | 57.5 mm |
| Voltage class | Up to 18/30 kV (33 kV system) |
| Operating temperature | -50°C to +150°C |
| Compliance | EN 61238-1, DIN 1712/1976 Part 3 |
| HS Code | 85369010 |
| Country of Manufacture | United Kingdom (includes NI) |
It is an aluminium reducer compression through connector designed to permanently join 70 mm² and 35 mm² aluminium conductors.
The MTMA70-35-GC is designed for reducing from 70 mm² aluminium cable to 35 mm² aluminium cable.
Yes. The connector is pre-filled with corrosion-inhibiting grease and sealing compound to minimise oxidation and maximise long-term electrical performance.
Yes. The integrated central stop ensures both conductors are correctly positioned before compression.
It is commonly used in industrial electrical systems, utility networks, switchgear, substations and electrical distribution installations.
Cembre aluminium compression connectors are trusted worldwide by electrical contractors, utilities and industrial engineers for delivering secure conductor joints, excellent electrical performance and exceptional long-term durability.
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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...