Product Overview
27 Point Trainline Connectors
Aptiv’s 27-point jumper assemblies and receptacles by Aptiv Interconnect are available in a variety of configurations for trainline (COMM) car control/communication and (MU) multiple unit locomotive control. The 27 Point Jumper is built to perform in the harshest conditions. Features like the spring-less heavy-duty cam action ejector prevents corrosion or freeze-up. Individual contact seal boots and outer “O” ring seal on front dielectric to connector body ensure optical electrical performance.

Features and Benefits
- Manufactured to conform to AAR S-512 and APTA RP-E-019-99 specifications.
- Qualified for use on all Amtrak equipment, as well as other major transit agencies.
- Self aligning silver plated copper socket contacts permit low mating forces, prevent excessive voltage drop and promote long contact life.
- Interchangeable and intermateable with other major brands
- Environmentally protected design with individual contact seal boots and outer “O” ring seal on front dielectric to connector body.
- Unique “multi-contact” band design on pin contacts provides reliable electrical engagement and is field serviceable and replaceable without removing the connector from the train.
- 27 Point trainline connectors allow a single point in the train to issue up to 27 commands to all or some of the vehicles simultaneously.
Specifications, Parts, and Filters
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Electrical Rating #10
40 Amps
Electrical Rating #12
30 Amps
Electrical Rating #14
20 Amps
Electric Rating
30 Amps 600V
Nominal Voltage
74 VDC (Ungrounded)
Dielectric Strength
1000 V (RMS)
Assembly Mating and Unmating Forces
54 +/-10 lbs (240 +/- 45 Newtons)
Tensile Pull Cable Hose & Connector Head Assembly
600 lbs (2.16 kN)
Drop Test on Mated Pair
6 Feet, Resulted in No Electrical/Mechanical Change or Performance
Individual Contact Force Range
8 to 52 oz. (2.2 to 14.5 Newtons)
Housing Material
Aluminum Alloy (Uncoated or Powder Painted)
Contact Spring Element Material
Copper Alloy, Silver Plated
Contact Body Material
Brass, Silver Plated
Contact Mating Force
54 +/-10 lbs
Contact Crimp Barrel Accepts
#10, #12 or #14 AWG Wire
Operating Temperature
-40°C to 60°C
Relative Humidity
5% to 100%
Wind Speed Tolerance
Up to 125 mph (Includes Debris: Flying Dust, Sand, Ballast, Water & Ice)
Fluid Tolerance
Diesel Fuel, Car Washing Solvents & Other Common Fluids Expected in Railroad Environment
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