Ventilation Systems For Subway Trains - PS Series

The Customer: Train Car HVAC system manufacturer

The Industry: Transportation - Trains

The Application: Air flow detection in rail car HVAC systems

The Solution:

• New York City Transit Authority used our switch to replace a competitor due to malfunctions
• Rocking of trains caused false switching of competitor’s switch
• Transit Authority requested PS series after testing, for all of their HVAC systems

PS Series:

• The ventilation manufacturer liked the switch so much that they now use it.
• Special Version with Silicone cable.
• NO PVC allowed on trains due to toxic vapors when it burns

Why the Customer Picked PS series

• Competitor’s switches false switched and resulted in train ventilation system shutdowns in New York City
• The PS had a strong paddle spring holds the paddle in place when the train rocks
• 2300 switches sold to customer since 2000

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