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MPL 500 Series


MPL / Switches & Sensors 500 Series

The MPL 500 series is a miniature sensor with set points available from 0.05 in/H20 to 20PSI. The standard model features high and low ports, parallel to the body, which can be applied for pressure, vacuum or differential inputs. Standard forms are available with perpendicular ports or NPT fitting. Model 501 has a momentary contact action with no hysteresis, suitable for dry circuits of 10-20mA, suitable for signaling a controller or lighting an indicator.


Applications Include:

Excellent general purpose low pressure to electric interface for monitoring and control applications.

  • Oxygen Concentrators
  • Appliances
  • Pneumatic Equipment
  • Air Filters
  • Exhaust Monitoring
  • Automation
  • Vehicle Controls


  • Operating Pressure: 0.07 in/H2O to 550 in H2O (20psi)
  • Operating Temperature: -40° to 120° C (-40° to 250°F), depending on components. Consult factory.
  • Burst: 25 psi
  • Contacts: gold-alloy cross-point
  • Body: Glass-filled polyester
  • Diaphragm: polyurethane, fluorosilicone, EPDM, Teflon®, and other materials available
  • Terminals: Brass, gold-plated
  • Form: SPST-NO, SPST-NC 2x, SPST-NO (Form F) MPL 504
  • Resistance: 500 milliOhm maximum
  • Agency Recognitions: UL recognized component
  • Weight: 10 grams

Features & Benefits

  • Customer Engineered Solutions
  • Fixed & Adjustable Set Points
  • Variable Port Configuration
  • Normally Open/Normally Closed
  • Single Pole, Single Throw
  • PC Mountable
  • Historically Proven Reliability

Custom OEM Solutions

Product design and customization has been a core service at Micro for over 50 years. With broad multi-industry experience, Micro is tested and trusted by the world’s most experienced and demanding OEMs
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/ ISO 13485:2003 certification / ISO 9001:2008 certification / ITS 16949 6 Sigma