Materials
All products from CONTA-CLIP are manufactured from standardized raw materials which are already well established in the electro-technical industry. All of our materials are subject to strict quality control testing.
Insulation materials
The insulation housings of CONTA-CONNECT products are made from high quality PA 6.6 polyamides. Such materials have a flammability classification of UL 94-V2 or UL 94-V0. This modern insulation predominates in terminal products and has been approved by all of the relevant regulatory bodies, including CSA, UL, PTB, SEV, VDE, DEMKO and NEMKO. It has a creepage current resistance level of CTI 600, in accordance with IEC 112/DIN 0303/part 1.
It also has excellent resistance to micro-organisms, bacteria and termites. Polyamide is also resistant to ultra-violet light and ageing. Polyamide 6.6 absorbs moisture from its surroundings (about 2.8% on average). This helps the plastic to stay elastic and non-brittle, even at temperatures down to -40°C. It has a semi-crystalline molecular structure and is stabilized by thermal ageing. This ensures that it maintains its excellent electrical, mechanical and chemical specifications even at temperatures up to 120°C. The peak temperature allowed for shortterm use is about 180°C. The melting point of the material is at 250°C. Polyamide 6.6 is flame resistant and self-extinguishing in compliance with VDE and ASTM.
None of the insulating materials and colouring pigments used by CONTA-CLIP contain asbestos, phosphor, cadmium or halogens.
Features
Polyamide (PA)
• Flexible, resistant to breakage
• Excellent electrical and mechanical characteristics
• High temperature allowed for long-term use
• Good resistance to fire
• Halogen-free and phosphor-free flame-retardant material
• No dioxin or furan formation
Glass-fibre reinforced polyamide (PA GF)
• Excellent dimensional stability
• Excellent electrical and mechanical characteristics
• Higher long-term-use temperature
• Good resistance to fire
• Halogen-free and phosphor-free flame-retardant material
• No dioxin or furan formation
Refer to the table below for additional electrical and technical specifications.
Metals
All metal parts used in CONTA-CLIP products are selected using state-of-the-art technology. During the production process, they are closely monitored by the CONTA-CLIP quality management system.
The metal parts in CONTA-CLIP products are galvanized using the most modern techniques available. They feature state-of-the-art surface protection. The steel parts are galvanized as standard practice. An additional passivation with a blue chromate layer is then applied to the zinc coating. Copper and brass parts are normally coated with a tin layer. This tin coating provides consistent, good electrical characteristics and also an excellent protection against corrosion. Solder lugs and solder pins are also coated with a tin layer.
An additional layer of nickel is present under the tin layer in order to ensure that the soldering characteristics do not deteriorate over longer periods. The springs in the tension-spring and pressure-spring mechanisms are made from high-quality, rust-proof, acid-resistant steel. This provides them with excellent resistance to their environmental surroundings.