Zhejiang Yonggui Electric Equipment Co., Ltd.

DSL Rectangular Connectors

DSL connector is a kind of electrical connector with modular structure, which is used in cabinets or panels of railroad transportation, and can be divided into two structures of standard installation or floating installation. The railway connector consists of two units, the module and the frame, and is divided into two series, V and B. The module can be combined arbitrarily according to the number of steps and the length of the frame.

Specifications of DSL Rectangular Connectors

V series
Working EnvironmentTemperature-55℃~+125℃
Humidity95% (at 40℃)
Electrical ParametersRated operating current10A(φ1.5)
15A(φ2.5)
50A(φ3.5)
Contact resistance≤2.5mQ(φ1.5)
≤1.5mQ(φ2.5)
≤1.0mΩ(φ3.5)
Insulation resistance≥5000MQ (normal)
Rated operating voltage300V(φ1.5)
220V(φ2.5)
500V(φ3.5)
Operating voltage1500V AC 50Hz(normal)(φ1.5)
2000V AC 50Hz(normal)(φ2.5)
2500V AC 50Hz(normal)(φ3.5)
Noteφ1.5-X module; φ2.5-Y module; φ3.5-Z module
Mechanical PerformanceMechanical life750 times
VibrationComply with GB/T21563 Class 1, Level B
ImpactConforms to Class 1, Level B of GB/T21563.
Other performanceFlame retardantEN45545
Environmental protectionRoHS
B series
Working environmentTemperature-55° C to +125° C
Humidity95% (at 40℃)
Electrical ParametersRated operating current10A(φ1.5)
25A(φ3)
Rated working voltage220V
Contact resistance≤2.5mQ(φ1.5)
≤1.0mQ(φ3)
Withstanding voltage3000V AC 50Hz (normal)
Insulation resistance≥5000MQ (normal)
Mechanical PerformanceMechanical life750 times
VibrationConform to GB/T21563 Class 1, Level B.
ImpactComply with the provisions of GB/T21563 in Class 1, Level B.
Noteφ2.5mm-M module; φ3mm-N module
Other performanceFlame retardantEN45545
Environmental protectionRoHS
Product FeaturesUp to 56 signal φ1.5mm contacts
Module structure, consisting of module and frame
With locking knob
Housing with cable fixing fixture (side outlet)
Staggered module
With 36 kinds of coding for error prevention


Contact Yonggui Electric for Connectors
Contact Yonggui Electric for Connectors
We Can Provide
  • Customized Solutions

    Tailoring connectors to your unique needs.

  • Expert Technical Support

    Provide system-level solutions

  • Quick Response

    Respond to needs within 12 hours

Blog & News
ESC-HPB Energy Storage Connectors - Safe, Reliable High-Voltage Connectivity for Modern ESS
Driven by the global transition toward carbon peaking and carbon neutrality, energy storage power stations, commercial and industrial energy storage cabinets, and outdoor distributed energy storage sy...
Read More
UQDB Blind-Mate Liquid Cooling Quick Couplings: Leak-Resistant Connections for High-Density Data Centers
Designed for fast, reliable coolant connections between server modules, cold plates and rack manifolds in high-density computing environments.UQDB blind-mate liquid cooling couplings support efficient...
Read More
Yonggui Interconnect Solutions for Commercial Satellites and Civil Aviation
Connector and customized cable assembly solutions for signal, power, RF and data transmissionCommercial satellite platforms and civil aircraft electronic systems place different demands on interconnec...
Read More
Important Notice: Yonggui Electric's official business emails use the @yonggui.com domain. Please verify email communications before taking action. Learn more ›