5 out of 5
Pricing Note
Product Description
Price is for EA.
Manufacturer Part Number: MPL-503-S-1.12-SPC
MPL 500 Series switches offer pressure, vacuum, and differential sensors, sensitive to as low as 0.05 in/H 2 O. Air Pressure Switch that activates between 120-125 knots. Their accuracy and reliability offer the designer an excellent general purpose low pressure to electric interface for monitoring and control applications. Miniature size and low cost make the 500 Series ideal for OEM applications.
Electrical:
MPL 500 Series switches offer pressure, vacuum, and differential sensors, sensitive to as low as 0.05 in/H 2 O. Air Pressure Switch that activates between 120-125 knots. Their accuracy and reliability offer the designer an excellent general purpose low pressure to electric interface for monitoring and control applications. Miniature size and low cost make the 500 Series ideal for OEM applications.
Electrical:
- Diaphragm material can be selected for the operating medium, temperature range, and other parameters
- Actuation point can be moderately adjusted by the designer
- Designed for low current and logic applications ( LED indicators, solid state relays)
- 10 to 20mA loads ensure reliable switching (Varistor or R-C snubber recommended for inductive loads)
- Heavier loads require the use of interface devices such as solid state relays
- Features an integral triac
- NEMA 0.020" x 0.187" male tabs are standard
- Low-profile terminals for 18-22 gage wire
- Optional bifurcated terminals accept 0.020" x 0.187" or 0.020" x 0.110" female quick disconnects
- Terminals are available for printed circuit board mounting.
- Custom applications requiring elongated terminals, tinning, and custom wiring can also be accommodated.
- The diaphragm functions as both sensor and seal
- Dynamic applications, the diaphragm provides an adequate seal
- Static applications, a secondary internal gasket will ensure a near bubble tight seal
Product Codes | |
|---|---|
| Mfr Part No: | MPL-503-S-1.12-SPC |
| CSA: | 50215 |
| ECCN: | 7A994 |
| SCHEDULE B CODE: | 8536.50.9040 |
| UL: | E70125 |
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Return Policy
Following items are non-returnable:
Restocking fee 30%
Special Order Items
Lost or "Broken" Traceability
Items Sold as Non-Returnable
Software
Computer Based Products
Programmed Items
Time Sensitive Items
Outdated Items
Used Items
Damaged Items
Opened Items
Restocking fee 30%
Special Order Items
Lost or "Broken" Traceability
Items Sold as Non-Returnable
Software
Computer Based Products
Programmed Items
Time Sensitive Items
Outdated Items
Used Items
Damaged Items
Opened Items
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Our staff are available to answer any questions you may have about this item
Customer Reviews
By Gabriel Reale
Date: October 19, 2025
Mount a little off had to drill holes
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By J. G.
Date: May 16, 2025
Got my furnace running again and it seems to by functioning well.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By A Customer
Date: October 08, 2023
Could not find the manufacturer part but this one has been working perfectly
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By hound dawg
Date: April 01, 2022
great replacement part and got the heat working again
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Kenny Roberts
Date: March 31, 2022
Works great. Bracket was a little different but nothing I couldn't handle
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
Items 1 - 5 of 5 reviews
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