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Terminals - Screw Connectors

7769-7 Application Field and Working Principle

A 7769-7 terminal screw connector is one of the most commonly used crimp or compression connectors which is constructed from high-quality steel and offers a secure and reliable junction connection for two or more electrical conductors. This kind of terminal screw connector is commonly used in harsh environments, including industrial and railway applications, where power is supplied from a generator to a building.

Originally developed by Amphenol Corporation, the 7769-7 terminal screw connector is designed to provide several advantages to users, including: quick and easy installation; frequent connection and disconnection of devices; and improved electrical stability.

The 7769-7 terminal screw connector is suitable for use with a variety of electrical cables, such as multiconductor cable, single-conductor cable, and wires. In addition, it can also be used with power cords and thermoplastic or rubber insulated cables. The type 7769-7 terminal screw connector features two contact housing types and four contact sizes which gives technicians greater flexibility when establishing a connection.

The contact sizes associated with the type 7769-7 terminal screw connector range from 0.5-2.5 millimeters and the body contact is 1.5 millimeter. As far as structural components, the terminal screw connector has an extraction force of 0.3-2.6 Newton, a contact resistance of 150 milliohms, and an insulation voltage of 1000 volts.

When using the type 7769-7 terminal screw connector, be sure that the contact housing is securely placed in the insulation body and that the base is screwed onto the contact until it is securely tightened. It is important that when using a screwdriver to tighten the contacts, the maximum contact force should not exceed the maximum torque stated by the manufacturer. Once properly secured, the contact should be stripped of any insulation which may be inside the insulation body. Also make sure no conductive particles remain inside the contact, as any particles can disrupt the connection and increase the likelihood of failure.

Additionally, when installing the 7769-7 terminal screw connector, it is important to ensure that the insulation body and contact housing are properly ventilated. This will prevent the formation of condensation within the connector and ensure that optimal performance is achieved. Additionally, it is important to check that the connectivity tolerance is within tolerable limits prior to soldering the contact to the end of the cable or wire.

Overall, the 7769-7 terminal screw connector is an ideal choice for anyone looking to establish reliable connections in harsh environments. Built from high-quality steel and offering quick and easy installation, frequent connection and disconnection of devices, and improved electrical stability, it provides a secure and reliable junction connection for two or more electrical conductors.

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