Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
MADISON M4400-PBT-ULL-NO Vertically Mounted Float Switch - Vertically Mounted Float Switches
MADISONVertically Mounted Float Switches

MADISON M4400-PBT-ULL-NO Vertically Mounted Float Switch

The MADISON Closed Liquid Level Switch (MPN M4400-PBT-ULL-NO) is a vertically mounted float switch with a brass construction and SPST switch action that closes on rise. It features lead wire electrical connections…

SKU 3G-OTH-30883

Also listed as: M4400PBTULLNO · M4400 PBT ULL NO

Brand
MADISON
Item
M4400-PBT-ULL-NO Vertically Mounted Float Switch
Part Number
M4400-PBT-ULL-NO
Category
Vertically Mounted Float Switches
Available to Order
Also known as:M4400-PBT-ULL-NOMADISON
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

MADISON
Manufacturer Part Number
M4400-PBT-ULL-NO
Electrical Connection Type
Lead Wires
Minimum Media Specific Gravity
0.56

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

MADISON Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The MADISON Closed Liquid Level Switch (MPN M4400-PBT-ULL-NO) is a vertically mounted float switch with a brass construction and SPST switch action that closes on rise. It features lead wire electrical connections and requires a minimum media specific gravity of 0.56 for operation.

Frequently Asked Questions

What is the MADISON Closed Liquid Level Switch used for?

The MADISON Closed Liquid Level Switch (M4400-PBT-ULL-NO) is used for point-level detection in tanks or vessels. It closes its SPST circuit on rising liquid, making it suitable for high-level alarm or pump-control applications in water, oil, or chemical systems where the media specific gravity is at least 0.56.

What are the specifications of the MADISON M4400-PBT-ULL-NO?

This MADISON switch is a vertically mounted float switch with brass construction. It has SPST switch action that closes on rise, lead wire electrical connections, and requires a minimum media specific gravity of 0.56. The manufacturer part number is M4400-PBT-ULL-NO.

Where to buy the MADISON M4400-PBT-ULL-NO worldwide?

3G Electric supplies the MADISON M4400-PBT-ULL-NO worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this MADISON float switch to any country.

How to install a MADISON vertically mounted float switch?

Mount the MADISON switch vertically through a tank opening, ensuring the float moves freely. Connect the lead wires to your control circuit per the SPST close-on-rise action. Verify the media specific gravity meets the 0.56 minimum. Follow standard wiring practices and test operation before commissioning.

Used in

Common applications for MADISON
Industrial tank level monitoring — MADISON M4400-ULL-NO vertically mounted float switch for high-level alarm in water storage tanks
Pump control in wastewater systems — MADISON M4168-1 side-mounted float switch for automatic pump start/stop in sump pits
Hydraulic system flow verification — MADISON FS8000-20003 piston flow switch for detecting flow in lubrication lines
Chemical processing level sensing — MADISON M3827-3NO stainless steel float switch for corrosive liquid level detection
Non-contact level measurement in bulk storage — MADISON U5098-D024-019 ultrasonic sensor for tank level monitoring up to 19 ft
Cooling water flow monitoring — MADISON FS8000-10010 compact flow switch for verifying coolant flow in heat exchangers
Not sure this is the right part? Photo-identify it

MADISON 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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
SMC
SMC
Solid state switch pneumatic position sensor for detecting cylinder piston position. Operates on 24 V DC with 2-wire direct configuration. IP67 rated for dust and water ingress protection. Suitable for position sensing in pneumatic actuators
SMC
SMC
The SMC D-F7BVL is a perpendicular solid-state auto switch designed for pneumatic cylinder position sensing. It operates at 24 V DC and is rated IP67 for protection against dust and water ingress. This non-contact sensor provides reliable switching signals in industrial automation applications
SMC
SMC
Perpendicular solid state auto switch for pneumatic cylinder position sensing. Two-wire direct connection, 24 V DC supply, 2.5 to 40 mA output. IP67 rated for use in industrial environments

More from MADISON

View all MADISON parts

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first