Bi-Metallic Copper and Aluminium Terminals

Dimensions sheet
Serial Number	Area mm2	ØE (Stud Size)	Dimensions in mm
			ØA	D	J
1	25	M8/10	6.5	20	79
2	35	M8/10	8	20	79
3	50	M10/12/14	9	24	88
4	70	M10/12/14	11	24	88
5	95	M10/12/14	12	24	88
6	120	M10/12/14	14	30	110
7	150	M10/12/14	15.5	30	110
8	185	M10/12/14	17	35	116
9	240	M10/12/16	19.5	35	116
10	300	M10/12/16	23	36	130
11	400	M10/12/16	26	36	150
13	500	M10/12/16	29	36	150
	630	-	32	36	150

Bi-metallic Copper and Aluminium terminals, also known as Bi-metallic Lugs or Bi-metal Connectors, are specialized electrical connectors designed to create reliable electrical connections between Copper and Aluminium conductors. These connectors are used when connecting Copper cables to Aluminium cables, joining dissimilar metals in electrical applications.

Key features and uses of bi-metallic Copper and Aluminium terminals include:

1. Material: Bi-metallic terminals consist of two main parts – a Copper portion and an Aluminium portion. The Copper portion is made from high-conductivity Copper, and the Aluminium portion is made from high-quality Aluminium.
2. Transition Design: Bi-metallic terminals are designed to accommodate both Copper and Aluminium conductors. The two metals are metallurgically bonded or mechanically clamped together to ensure a reliable and low-resistance connection.
3. Avoiding Galvanic Corrosion: When Copper and Aluminium come into direct contact without a proper transition, it can lead to galvanic corrosion due to the different electrochemical properties of the metals. Bi-metallic terminals help prevent this corrosion issue.
4. Size: Bi-metallic terminals come in various sizes to accommodate different Copper and Aluminium cable diameters, allowing for a wide range of cable termination applications.
5. Termination: They are typically attached to the cable ends using compression or crimping methods, creating a reliable and permanent electrical connection.
6. Applications: Bi-metallic Copper and Aluminium terminals are used in various electrical systems where connections between Copper and Aluminium conductors are required, such as power distribution, electrical panels, and transformers.
7. Electrical Safety: Bi-metallic terminals ensure a secure electrical connection while mitigating the risk of galvanic corrosion and maintaining electrical safety.
8. Durability: The metallurgical bonding or mechanical clamping of Copper and Aluminium in the bi-metallic terminals provides durability and resistance to environmental factors.

When dealing with Copper-to-Aluminium connections, using bi-metallic Copper and Aluminium terminals is essential to avoid the potential risks associated with galvanic corrosion. Proper selection and installation of these terminals are crucial for ensuring a reliable, long-lasting, and safe electrical connection.