Madison M5000 Miniature Liquid Level Switch 300 Psi Spst

Product Description

The MADISON M5000 is a miniature liquid level switch designed for demanding industrial and mechanical applications involving high temperature, high pressure, and corrosive media. Built with a stainless steel body, this SPST float switch threads into a port with a 1/8-inch connection and handles system pressures up to 300 psi and temperatures up to 200 degrees F. The float diameter measures 1.18 inches and has a specific gravity rating of 0.6, making it suitable for use with a range of liquid types. Licensed plumbers, pipefitters, and industrial maintenance technicians typically install this switch in process systems, tanks, and fluid management equipment.

The M5000 is suited for residential and commercial applications where standard float switches cannot tolerate the operating environment. It performs reliably in corrosive fluid conditions, elevated-temperature process lines, and high-pressure vessel monitoring. Its compact, miniature form factor allows installation in tight spaces where larger float assemblies would not fit. This switch is commonly used in boiler systems, chemical tanks, coolant reservoirs, and similar fluid-level sensing applications.

Key Features

• Stainless steel body rated for corrosive, high-temp, and high-pressure conditions
• Maximum operating pressure of 300 psi
• Maximum operating temperature of 200 degrees F
• SPST switch logic for straightforward open or closed circuit control
• 1/8-inch threaded connection for direct port installation
• 1.18-inch float diameter with 0.6 specific gravity rating
• Dual voltage compatibility: 120 volts AC and 240 volts AC

Compatibility

Designed as an OEM-style replacement or direct-install miniature liquid level switch for high-temperature, high-pressure, and corrosive fluid applications requiring a 1/8-inch threaded SPST float switch.

Installation Notes

Installation is typically performed by a licensed plumber, pipefitter, or industrial maintenance technician. Depressurize and drain the system completely before removing or installing any threaded liquid level switch. Apply appropriate thread sealant compatible with the process fluid before threading the switch into the port. Verify the operating voltage and load do not exceed the switch ratings before energizing the circuit.