181P NEMA 4X and 13 Vacuum Switch/Internal Adjustment
Compact, adjustable vacuum switch well suited to numerous applications. Our efficient Nega-Rate® Belleville disc spring offers superior set point stability and vibration resistance. The 181P series vacuum switch also has a selectable deadband feature which can be pre-set at the factory.
• Electrical Listings: Switch listed by Underwriters Laboratories, Inc., CSA International and FM Approval
• Electrical Connection: 1/2 NPT male conduit connection, 18″ free leads
• Pressure Connection: 1/4 NPT Female and 1/2 NPT Male
• Temperature Range*
o Ambient: -40°F to +176°F (-40°C to +80°C)
o Media: -40°F to +300°F (-40°C to +149°C)
• Adjustment: Internal, slotted adjustment wheel
• Shipping Weight: Approximately 13 ounces

* Temperature limits change with O-Ring selection