MADISON Closed Liquid Level Switch: Close On Rise, SPST
The MADISON Closed Liquid Level Switch (MPN M9000-ULL-NO) is a vertically mounted float switch with a SPST, close-on-rise operation. It features a Kynar construction and lead wire electrical connection, requiring a…
SKU 3G-OTH-30824
Need installation or engineering help?
Ask a question
Product Description
The MADISON Closed Liquid Level Switch (MPN M9000-ULL-NO) is a vertically mounted float switch with a SPST, close-on-rise operation. It features a Kynar construction and lead wire electrical connection, requiring a minimum media specific gravity of 0.94.
Frequently Asked Questions
What is the MADISON M9000-ULL-NO closed liquid level switch used for?
The MADISON M9000-ULL-NO is a vertically mounted float switch used to detect liquid level in tanks or vessels. Its SPST, close-on-rise operation activates a circuit when liquid rises, making it suitable for overfill protection or pump control in chemical processing and water treatment.
What are the specifications of the MADISON M9000-ULL-NO?
The MADISON M9000-ULL-NO is a closed liquid level switch with SPST, close-on-rise operation. It has a Kynar body, lead wire electrical connection, and requires a minimum media specific gravity of 0.94. It is designed for vertical mounting in industrial applications.
Where to buy the MADISON M9000-ULL-NO worldwide?
3G Electric supplies the MADISON M9000-ULL-NO closed liquid level switch to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this Kynar float switch.
How to install the MADISON M9000-ULL-NO vertically mounted float switch?
Install the MADISON M9000-ULL-NO vertically in a tank with the float free to move. Ensure the media specific gravity is at least 0.94 for proper buoyancy. Connect the lead wires to your control circuit per the SPST close-on-rise wiring diagram. Avoid overtightening the mounting threads.
Used in
Common applications for MADISONMADISON Products
3G Electric supplies MADISON vertically mounted float switches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.












