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Fortpro LP-3 Low Pressure Switch Replacement for Mack 1MR2339R (Normally Closed 70 psi) | F235517

Key Features

Designed and built to guarantee an electrical signal if air pressure falls under the safe minimum in the air brake system
Advanced testing technology to ensure quality and strength
Features heavy-duty contacts and high conductivity brass terminal
Direct Replaces a one step installation
Features rugged heatproof molded insulators

Specifications

Product Line: Electrical
Category Name: Switches & Flashers
Part Type: Low Pressure Switch
Alternate Part Name: Low Air Pressure Switch, LP-3 Pressure Indicator, LP-3 Low Pressure Switch
OEM Part Number: 1MR2339R
Application Type: Semi-Trucks, Heavy Duty Trucks
Supply Port Size: 1/4-18 NPTF
Terminal 1 Connector: #8-32 UNC-3B
Terminal Configuration: Single
Thread Gender: Male Thread
Material: Die Cast, Plastic Polymer
Overall Length: 2.15 in.
Closing Pressure: 70 ± 6 psi
Current Rating: 10:00 AM
Maximum Operating Temperature: 185 Deg. F (85 Deg. C)
Minimum Operating Temperature: -40 Deg. F (-40 Deg. C)
Operating Voltage: 12 Volts
Net Weight: 0.16 lb.

Intended Application

Designed for integration into the air brake system of heavy-duty commercial vehicles. Its primary function is to act as an electro-pneumatic switch that automatically activates an audible (buzzer) and/or visual (warning light) alarm on the dashboard when the air pressure drops below the minimum safe level for normal operation (nominally 60-75 PSI).
Always compare with your OEM part number prior to purchase to confirm full compatibility.

Cross-references