Honeywell L4079A1050

PressureTrol® Limit Control

Product Overview

This pressure limit control features a stainless steel diaphragm designed for reliable monitoring of steam, air, non-combustible gases, and fluids that are non-corrosive to stainless steel. The device operates within a 10 to 150 psi range and provides automatic pressure protection with manual reset capability.

Key Features

Switch Configuration: SPST dual-switch design with simultaneous break action on pressure rise, utilizing micro-switch snap-acting technology for precise operation

Mounting Options: Flexible installation via ¼” NPT female fitting on the diaphragm assembly or surface mounting through the case base

Reset Function: Switches open automatically when pressure exceeds setpoint and require manual reset for safe operation

Construction: Durable stainless steel diaphragm sensor element engineered for compatibility with various media types

Technical Specifications

• Pressure Range: 10 to 150 psi
• Maximum Operating Temperature: 150°F (66°C)
• Electrical Connection: Screw terminals
• Mounting: ¼” NPT

Applications

Ideal for limit control applications involving steam systems, compressed air lines, non-combustible gas distribution, and compatible fluid processes where overpressure protection is required.