RailMac Control Connector (Power-Concentrated EMU)
Designed to meet GB/T 25022.3-2023 (Rail Transit Rolling Stock Electrical Connectors – Part 3: Communication Control Connectors), this Control Connector is a specialized solution for rail transit systems, integrating network and control signal transmission in a single, robust unit. Its integrated network module, paired with continuous shielding functionality (maintained unbroken during use), ensures stable, interference-free signal transfer—critical for consistent communication in dynamic rail environments.
A standout feature is its multi-layered guiding structure: the socket’s left-right draw hooks include a limiting function to restrict plug wobble, enabling smooth, reliable “blind mating” (insertion without visual alignment). This design not only simplifies operation but also protects pins from damage, enhancing long-term durability. For frequent plugging scenarios (common in rail maintenance and operation), the connector uses axial positioning via front and rear insulation plates—delivering precise insertion guidance and strong positioning force to withstand repeated use.
Composed of a plug and socket, the connector is equipped with 54 contact pairs and 3 ports, balancing high connection capacity with compact form. Whether for on-board communication systems or control signal distribution, it combines compliance with industry standards, advanced shielding, user-friendly blind mating, and rugged positioning to support the reliable, continuous operation of modern rail transit electrical networks.
Advantages of RailMac Control Connector (Power-Concentrated EMU)
This connector integrates network and control signals, with the network module installed within the connector. After mating, it provides continuous shielding without interruption during use.
It employs a multi-guided structure, and the left and right hooks of the socket have a movement-limiting function, restricting plug movement and ensuring smooth and reliable plug insertion into the socket. This effectively protects the pins and enables “blind mating.”
The contact pairs utilize axial positioning with front and rear insulating plates, providing excellent insertion guidance and high positioning force, suitable for frequent mating and unmating.
According to GB/T 25022.3-2023 “Railway Transportation – Electrical Connectors for Locomotives and Rolling Stock – Part 3: Communication Control Connectors,” this connector consists of a plug and a socket, with 54 contact pairs and 3 ports.
Power Connector Series Products
This is the products related to Power Connector Series.
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RailMac Emergency Power Supply Quick Connector
This Emergency Power Supply Quick Connector
adopts a strap spring structure for reliable
contact and low resistance. It features fast
installation, easy operation, and secure latching to prevent loosening, with IP68 protection when mated and touch protection when unmated.
RailMac 1000A DC Connector
This 1000A DC Connector integrates charging
confirmation, communication, and emergency
stop interfaces. Boasting excellent corrosion
resistance, it suits humid, salt-laden marine environments, enabling safe, high-power 1000A DC transmission with robust functionality and environmental adaptability.
RailMac 420A Power Connector
This 420A Power Connector excels in corrosion
resistance, fitting humid, salt-laden marine
environments. It has a mechanical lock to
prevent live plugging and IP67 protection, enabling safe, stable 420A high-power transmission in harsh conditions.
RailMac 250A DC Connector
This 250A DC Connector supports charging
confirmation, communication, and emergency
stop interfaces. With excellent corrosion
resistance,it is ideal for humid, salt-laden marine environments, delivering reliable 250A DC power transmission with robust environmental adaptability and functional versatility.
RailMac 250A Low-Voltage Connector
This 250A Low-Voltage Connector boasts strong
corrosion resistance, suiting humid, salt-laden
marine environments. It features a mechanical
lock to prevent live plugging and IP67 protection, delivering safe, reliable 250A low-voltage current transmission in harsh conditions.
RailMac Low-Voltage Smart Shore Power Pile
This Low-Voltage Smart Shore Power Pile uploads
operational data via a network module for remote
monitoring and querying. It offers metering
/billing, fault alerts, plus protection functions (connection confirmation, emergency stop, short-circuit/lightning protection) for safe, intelligent port power supply.
RailMac Transfer Cable
This Transfer Cable enables quick connection
between ships and port shore power equipment
with mismatched interfaces. One plug links to
the port’s output, while the mobile socket on the other end adapts to various ship-side interface specifications, streamlining shore power transitions.
RailMac High-voltage connector
This high-voltage connector excels in corrosion
resistance, suiting humid, salt-laden marine
environments.It features a mechanical lock for
live-plug protection and IP67 sealing, ensuring safe, reliable operation in harsh conditions while supporting high-voltage power transmission.
RailMac Power Connector
This power connector, ideal for 160/200km/h
electric multiple units, features IP67 sealing,
compact labyrinth insulation, and multi-layer
anti-misinsertion. Its stable contact positioning ensures safe power transfer, complying with GB/T 25023-2010, TB/T 3213-2009, and GB/T 21563-2018 standards.
RailMac M12 Connector
This M12 Connector meets IEC standards,
boasting high signal integrity and 360°
circumferential shielding for strong
anti-interference. It features low contact resistance, long mechanical life, and high voltage tolerance. Simple to assemble, it serves industrial automation, plus measurement, robotics, aerospace, and alternative energy sectors.
RailMac Rectangular Medium-Pressure Connector
This Rectangular Medium-Pressure Connector
features an aluminum alloy shell,flame-retardant
insulators, and a detachable rear cover. With
dual anti-misinsertion structures and IP67+ sealing, it ensures reliable bolted connections. The corrosion-resistant shell and maintainable contacts suit harsh industrial environments.
RailMac JSD Series Modular Terminal Blocks
The JSD Series (JSD-70/JSD-150) modular
terminal blocks—comprising bases, modules,
baffles,and fasteners—support custom
combinations.JSD-70 handles ≤70mm² cables; JSD-150 ≤150mm². Made of flame-retardant material (excellent impact resistance), they enable high-voltage/current transmission via crimp terminals, suiting diverse cabinet applications.
RailMac 102-Core Equipment Connector
This 102-Core Equipment Connector features
flame-retardant insulators, contacts, and
a shell-less integrated frame for easy installation.
It enables power/control/signal transmission for air-con, PIS, and driver’s cabinets. Boasting diverse specs (12/17-core 10A, etc.), it supports flexible module combinations to fit varied wiring needs.
RailMac 64-Core Full Module Equipment Connector
The 64-Core Full Module Equipment Connector
consists of flame-retardant insulators, contacts,
springs and fasteners. It suits air conditioning,
PIS and driver’s cab control cabinets in transit systems. Its integrated modular design ensures straightforward installation, enabling reliable connections for diverse on-board equipment.
RailMac 72-Core Equipment Connector
This 72-Core Equipment Connector for urban rail
transit features flame-retardant insulators,
contacts,integrated frame and fasteners. Its
modular design supports power, control and signal transmission for air conditioning cabinets, PIS cabinets and driver’s cab control cabinets. With multiple core configurations (12/17-core 10A, 6/8-core 16A, 2/3-core 40A), it allows flexible combinations to meet diverse wiring needs, ensuring easy installation.
RailMac D-Sub (MVB) Connector
This D-Sub (MVB) Connector complies
with IEC61375-1 standard, delivering high signal
integrity and excellent performance. It features
360° circumferential shielding for strong anti-interference, supports MVB communication protocol, and comes in male (pin) and female (socket) versions. With 9-pin D-SUB design, it enables fast, stable signal transmission for vehicle bus control systems, easy to install as terminal or repeater.
RailMac Motor Connector
RailMac’s motor connectors are tailored for rail
vehicles and other transportation applications.
Boasting a highly reliable structure, select models
come with a unique anti-disconnection design, which effectively resists vibration and guarantees stable signal transmission in transportation scenarios.
RailMac Hook-and-loop Connector
RailMac’s hook buffer connector is a core electrical
component for subway semi-automatic couplers.
With an innovative symmetrical floating design
and floating insulator plate assembly, it offsets coupler gaps, avoids contact wear and signal interruptions, and enhances reliability.
RailMac Rectangular Network Connector
RailMac’s rectangular network connector features
a high-density design. The company holds a
patent for a specialized auxiliary mating fixture
that addresses the challenge of high insertion and extraction forces in multi-core connectors, enabling fast and uniform mating while preventing damage and enhancing reliability. The product is widely used in transportation fields such as railways and aerospace.
RailMac Rectangular Control Connector
RailMac’s rectangular control connector caters to
industrial automation and rail transit, enabling
reliable signal/power transmission. Boasting a
patented auxiliary mating design, modular structure, anti-misinsertion, and blind mating tech, it excels in harsh environments, boosting installation efficiency and reliability while cutting maintenance costs.
RailMac Intermediate connector
RailMac’s intermediate connector is designed for
power and signal transmission at the ends of rail
vehicles. Its core lies in the innovative symmetric
floating structure, which effectively absorbs displacement caused by coupler gaps, completely eliminating harmful sliding wear between contacts, ensuring continuous and stable signals. The product integrates multiple guidance and high-reliability blind mating technology, supporting fast and accurate docking in complex wiring environments.
RailMacHigh-voltage connectors
Rated Voltage: DC 1500 / 2000 V
Rated Current: DC 100 – 350 A
Impulse Voltage Withstand Test: >DC12.3KV
Protection Class: IP67 (Mated condition)
























