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Round Connectors

Circular connectors are designed with a circular interface. The connectors usually consist of pins with exposed terminals and sockets that receive the pins, and are used in a wide variety of applications including transmitting various signals and power. Circular connectors are available in various numbers of cores, contact shapes, dielectric strengths and shell sizes for use according to operating environment. Additional functionalities may include single-action engaging/disengaging, highly waterproof characteristics that allow the connector to be submerged during use, locking mechanism to prevent accidental disengaging, etc. Pin-to-socket coupling styles include threaded types that are threaded on the exterior and twisted in, bayonet and reverse-bayonet that can be engaged/disengaged in a single action, twist-lock where the pin-side is twisted to lock, and more. Circular connector specifications range from 1 to 74 cores, allowable current of 0.5 to 350 A, allowable voltage of 12 to 6,600 V DC, etc.

Design and Configuration

Round connectors are engineered for reliable electrical connections and are available in multiple shell sizes, contact layouts, and core counts (1 to 74 cores). This flexibility allows engineers to select connectors based on wiring density, signal type, and space constraints.

Electrical Performance

These connectors support a broad range of electrical requirements, with wide range of allowable rated current and rated voltage, making them suitable for low-level signal transmission as well as high-power applications.

Coupling and Locking Mechanisms

Round connectors are offered with various pin-to-socket coupling styles, including:

Threaded type for high vibration resistance
Bayonet and reverse-bayonet types for quick, single-action engagement
Twist-lock mechanisms for secure and repeatable connections

These locking options help prevent accidental disconnection during operation.

Environmental Resistance

Depending on the model, round connectors provide high dielectric strength, waterproof sealing, and dust resistance. Waterproof types can withstand harsh environments and are suitable for outdoor, industrial, and submerged applications.

Applications

Commonly used in industrial automation, robotics, control panels, instrumentation, power transmission, and communication systems, round connectors deliver stable performance in demanding operating conditions.

Key Benefits

Compact circular design with high connection reliability
Wide range of current, voltage, and core configurations
Secure locking for vibration-prone environments
Options for waterproof and heavy-duty applications

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