Description
Xylem-McDonnell & Miller 304300 Snap Switch (Model FS1-17)
The Xylem-McDonnell & Miller 304300 is a genuine OEM replacement snap switch designed to restore reliable switching performance in a wide range of McDonnell & Miller flow switch assemblies. Engineered to the same exacting standards as the original components, this snap switch ensures your hydronic and boiler protection systems continue to operate safely and accurately.
Compatible Flow Switch Models
- FS1 Flow Switch
- FS4-3D Flow Switch
- FS-5 Flow Switch
- FS-6 Flow Switch
- AFE-1 Flow Switch
Key Features & Benefits
- Genuine OEM replacement snap switch — model number FS1-17
- Restores original switching function in compatible McDonnell & Miller flow switch assemblies
- Designed for dependable, long-lasting performance in hydronic heating and boiler protection applications
- Precise snap-action mechanism for accurate and repeatable switching
- Simplifies field service and maintenance — direct drop-in replacement for supported models
- Backed by Xylem’s trusted McDonnell & Miller product line
Application
This snap switch is the critical switching element within McDonnell & Miller flow switch assemblies, detecting water flow and triggering protective shutoff or alarm circuits in hydronic heating systems, boilers, and related HVAC equipment. Replacing a worn or failed snap switch is a cost-effective alternative to replacing the entire flow switch assembly, minimizing downtime and reducing service costs.
Product Details
- SKU: 304300
- Model Number: FS1-17
- Brand: Xylem-McDonnell & Miller
- Compatible With: FS1, FS4-3D, FS-5, FS-6, AFE-1
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