Honeywell L4079B1041 Pressuretrol Limit Controller, 10–150 PSI, Manual Reset, SPST Break-on-Rise Switch, Stainless Steel Diaphragm

Honeywell L4079B1041 Pressuretrol Limit Controller, 10–150 PSI, Manual Reset, SPST Break-on-Rise Switch, Stainless Steel Diaphragm

Overview

The Honeywell L4079B1041 is a reliable pressure limit controller designed for steam, air, noncombustible gases, and non-corrosive fluids. Equipped with a stainless steel diaphragm and a manual reset SPST switch, it provides precise pressure control and safety by breaking the circuit when pressure rises beyond the set limit.

Key Features

• Operating Pressure Range: 10 to 150 PSI, with a maximum pressure rating of 225 PSI

• Switch Action: Single Pole Single Throw (SPST) switch that breaks the circuit on pressure rise

• Manual Reset: Requires manual reset to restart after activation, ensuring controlled operation

• Durable Diaphragm: Stainless steel diaphragm suitable for steam, air, noncombustible gases, and compatible fluids

• Flexible Mounting:

  • 1/4" NPT internal thread for diaphragm assembly mounting

  • Surface mount option through back of case

• Electrical Rating: Compatible with 120Vac/240Vac power supplies

• Application: Ideal for use in safety limit control on industrial boilers and pressure systems

• Note: The L4079W variant is designed specifically for oil applications

Technical Specifications

Applications

• Pressure limit safety control for steam, air, and noncombustible gases

• Protection device in boilers, compressors, and other pressure systems

• Systems requiring manual reset to ensure intentional restart

• Suitable for non-corrosive fluids compatible with stainless steel diaphragms