Description
The Warrick-Gems Sensors & Controls MGRE40W is a single-pole double-throw (SPDT) float level switch designed to provide dependable liquid level detection in a wide range of HVAC, hydronic, boiler, and industrial fluid management applications. With a generous 40-foot cable length, this float switch offers the installation flexibility needed for deep tanks, sumps, reservoirs, and remote-mounted control panels.
How It Works
The MGRE40W operates on a simple yet proven float-actuated switching principle. As the liquid level rises or falls, the buoyant float follows the surface and mechanically actuates the SPDT switch mechanism. The SPDT configuration provides both normally open (NO) and normally closed (NC) contact outputs, making it compatible with a broad array of control circuits — including pump start/stop, alarm activation, and level indication systems.
Key Features
- SPDT (Single-Pole Double-Throw) switching action for versatile circuit integration
- 40-foot cable length for deep-tank and remote installation flexibility
- Rugged float construction designed for long-term submersion in liquid environments
- Suitable for use in sumps, tanks, reservoirs, boiler feedwater systems, and condensate applications
- Provides both normally open and normally closed contact outputs
- Simple mechanical operation — no external power required for switching actuation
- Warrick-Gems Sensors & Controls quality engineering for reliable, repeatable performance
Typical Applications
- Boiler and hydronic system water level monitoring
- Sump pump control and high-water alarm circuits
- Condensate tank and collection pit level sensing
- Industrial process fluid level detection
- HVAC equipment protection and automated pump sequencing
Why Choose Warrick-Gems?
Warrick-Gems Sensors & Controls is a globally recognized leader in liquid level sensing technology. Their float switches are trusted by HVAC contractors, mechanical engineers, and facility managers for their durability, accuracy, and ease of installation. The MGRE40W continues this tradition, delivering a cost-effective and reliable solution for critical level control applications.







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