Potter Electric Signal Co. Us PS-40-EX Pressure Switch

Product Description

The POTTER ELECTRIC SIGNAL CO. US PS-40-EX is a pressure supervisory switch designed to monitor system pressure within fire protection and waterflow detection systems. This device signals when pressure rises above or falls below a set threshold, providing supervisory feedback to a fire alarm control panel or monitoring system. It is installed by licensed fire protection contractors and sprinkler system technicians as part of a compliant supervisory circuit. The PS-40-EX is sold individually and is suited for applications requiring reliable, continuous pressure status monitoring.

The PS-40-EX is used in waterflow equipment installations, typically within commercial and residential fire suppression systems. It functions as a supervisory device on wet-pipe, dry-pipe, or pre-action sprinkler systems where pressure monitoring is required by code. Installation is performed during system commissioning or as a replacement in existing supervisory circuits.

Key Features

• Supervisory pressure switch for fire protection and waterflow systems
• Signals pressure deviation to a fire alarm control panel
• Sold as a single unit for direct replacement or new installation
• Designed for waterflow equipment supervisory circuit applications

Compatibility

Designed as an OEM-style supervisory pressure switch for use in fire protection waterflow equipment applications. No specific compatible model numbers were provided in the product data.

Installation Notes

Installation should be performed by a licensed fire protection contractor in accordance with NFPA 72 and NFPA 13 requirements. Shut off system pressure and relieve any residual pressure in the line before removing or installing the switch. Verify supervisory circuit wiring connections are correct and test the supervisory signal at the fire alarm control panel after installation. Do not exceed the pressure rating of the switch or install in systems with conditions outside the device specifications.