2PM Series Russian Standard Circular Connector for Railway Systems

PC Series Circular Connector Types and Specifications

2PM Series Russian Standard Circular Connector for Rail Transit Systems

The 2PM Series Russian Standard Circular Connector is designed to provide stable and secure electrical connections in demanding rail transit environments. With its threaded coupling mechanism and rugged aluminum housing, the 2PM connector supports reliable power and signal transmission in metro systems, high-speed trains, locomotives, and railway control cabinets.

Built to withstand vibration, mechanical shock, and temperature fluctuations, the 2PM series is suited for onboard electrical systems, signaling modules, traction control units, and auxiliary railway equipment.

Engineered for Railway Reliability

Rail transit systems require connectors that maintain stable performance under continuous vibration and harsh operating conditions. The 2PM series features:

• Secure threaded locking structure for anti-vibration stability
• High-strength metal shell for mechanical protection
• Reliable contact performance with low contact resistance
• Long service life in industrial railway environments

These characteristics make it a practical choice for railway electrical interconnection systems where mechanical integrity and consistent contact are critical.

Available Models & Configurations

The 2PM series offers multiple shell sizes and contact layouts to meet different railway system requirements:

• 2PM14-4 / 2PM14-7 – Compact size for low-pin signal transmission
• 2PM18-7 / 2PM18-10 – Suitable for control systems and auxiliary circuits
• 2PM22-10 / 2PM22-19 – Medium-density connections for onboard modules
• 2PM24-19 / 2PM24-24 – Higher pin count for complex rail equipment
• 2PM30-32 – Large-capacity configuration for integrated railway systems

Both straight plug and flange mounting versions are available to support cable-to-cable and panel-mount applications. When selecting a model, confirm the required pin count, gender (male or female), and mounting style against your system's wiring diagram.

Typical Rail Transit Applications

• Railway control cabinets
• Traction and braking systems
• Onboard monitoring systems
• Signal transmission modules
• Power distribution units
• Metro and locomotive electrical systems

Selection Considerations for Rail Projects

When evaluating the 2PM series for your application, verify the following before ordering:

• Pin count and layout: Match the contact arrangement to your circuit requirements; do not assume compatibility from shell size alone.
• Gender and mounting: Confirm whether you need a plug (cable) or socket (panel mount), and whether straight or flanged versions fit your enclosure.
• Environmental limits: The operating temperature range is -40°C to +150°C; verify that your installation environment stays within these bounds.
• Mating hardware: Ensure the screw-locking mechanism is accessible in your final assembly for secure mating and unmating.

Application Boundaries

The 2PM series is appropriate for indoor and protected railway equipment where vibration resistance and stable contact are required. It is not intended for submersion or continuous exposure to standing water; for such conditions, confirm the IP rating with your technical contact before specifying. For applications requiring higher pin densities or different coupling styles, consider the 12G Series Circular Connectors as an alternative.

Inquiry Checklist

To receive an accurate quotation and mating recommendation, please provide the following details:

• Required model number (e.g., 2PM18-10) or shell size and pin count
• Gender (male plug or female socket) and mounting style (cable or panel)
• Wire gauge and cable outer diameter for the intended termination
• Operating voltage and current per contact
• Environmental conditions, including temperature range and exposure to moisture or chemicals
• Any applicable drawing or pinout for verification

For further reference on Russian standard connector types and specifications, see the PC Series Circular Connector Types and Specifications.