McDonnell & Miller FS254 Insertion-Style Flow Switch for Liquids
The MCDONNELL & MILLER General Purpose Switch: Paddle is an insertion-style switch for liquids designed for use in 1-inch pipe sizes. It features a brass construction with a 1-inch NPT connection and is rated for a…
SKU 3G-OTH-93557
Also listed as: FS 254 · FS-254
Local availability & support
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
Need installation or engineering help?
Ask a question
Product Description
The MCDONNELL & MILLER General Purpose Switch: Paddle is an insertion-style switch for liquids designed for use in 1-inch pipe sizes. It features a brass construction with a 1-inch NPT connection and is rated for a full-load AC contact rating of 3.7 A at 240V. This model, part number FS254, is suitable for flow detection in liquid systems.
Frequently Asked Questions
What is the MCDONNELL & MILLER FS254 general purpose switch used for?
The MCDONNELL & MILLER FS254 is an insertion-style paddle switch for liquids. It detects flow in 1-inch pipe systems, commonly used in HVAC, boiler, and industrial liquid handling applications to monitor or control pump operation.
What are the specifications of the MCDONNELL & MILLER FS254?
The FS254 is a brass paddle switch for 1-inch pipe size with a 1-inch NPT connection. Its AC contact rating is 3.7 A at 240V full load. This McDonnell & Miller model is designed for liquid flow detection in industrial systems.
Where to buy the MCDONNELL & MILLER FS254 worldwide?
3G Electric supplies the MCDONNELL & MILLER FS254 worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this insertion-style switch globally.
How to install the MCDONNELL & MILLER FS254 paddle switch?
Install the FS254 into a 1-inch NPT threaded fitting in the pipe. Ensure the paddle is oriented correctly for flow direction. Follow standard wiring practices for the 3.7 A at 240V contact rating. Always consult local codes and the manufacturer's manual for safe installation.
Used in
Common applications for McDonnell & MillerMcDonnell & Miller Products
3G Electric supplies McDonnell & Miller insertion-style switches for liquids. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.