EPSA40-1P HONEYWELL

Product Overview

The System Sensor by Honeywell EPSA40-1P is a commercial-grade, single-switch low pressure supervisory switch designed for automatic fire sprinkler systems. It is primarily utilized to monitor air or nitrogen pressure variations in dry pipe systems, pre-action systems, and pressure tanks. Factory-set to trip on a pressure drop at 30 PSI or a pressure rise at 50 PSI, this switch features an adjustable pressure sensitivity window between 10 and 100 PSI. Housed in a weatherproof NEMA 4 rated enclosure, it protects its internal electrical components from environmental dust and moisture, making it suitable for demanding indoor and outdoor commercial installations.

Key Features

• Specialized low pressure supervisory switch designed for air or nitrogen monitoring in dry pipe and pre-action fire protection systems.
• Equipped with one single-pole double-throw (SPDT, Form C) synchronized switch assembly rated at 10 Amps.
• Features a convenient, tool-free internal adjustment wheel that allows technicians to calibrate high and low thresholds across a 10 to 100 PSI spectrum.
• Rugged weatherproof NEMA Type 4 indoor and outdoor enclosure utilizing a durable cast aluminum base and a UV-stabilized plastic cover.
• Built-in pressure-resistant reinforced diaphragm designed to withstand sudden pressure spikes without drifting from calibrated thresholds.
• Includes dual half-inch conduit entry knockouts and a standard half-inch male NPT threaded brass connection for straightforward mechanical installation.