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McDonnell & Miller 120610 FS254 Flow Switch With NEMA 4 Enclosure

McDonnell & Miller 120610 FS254 Flow Switch With NEMA 4 Enclosure

Brand: McDonnell & Miller SKU: 120610
Regular price $308.95 USD
Regular price Sale price $308.95 USD
Sale Out of Stock - Call to Order
Ships Direct from Distribution β€” Dispatches in 24–48 Hrs
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Performance ParameterEngineering Baseline Value
Manufacturer Part Number (MPN)120610
Model DesignationFS254
Enclosure RatingNEMA 4

Maintain precise liquid flow monitoring in your HVAC and industrial piping systems with the McDonnell & Miller 120610 FS254 flow switch. This robust device is engineered to provide dependable make or break circuit action in response to fluid movement, ensuring that equipment such as pumps, chillers, and burners operate only when sufficient flow is present. The FS254 comes equipped with a NEMA 4 rated enclosure, offering enhanced protection against dust, splashing water, and hose-directed liquid ingress.

The flow switch operates via a paddle mechanism inserted into the pipeline, which physically moves in response to the force of the flowing media. This motion triggers the internal switch contacts, allowing for automated system interlocking or alarm signaling based on specific flow conditions. This reliable mechanical actuation ensures immediate feedback for critical system maintenance and safety protocols.

Key System Performance Baselines:

  • Durable Enclosure: NEMA 4 rating ensures integrity in harsh or moisture-prone environments.
  • Reliable Signaling: Precisely triggers circuit transitions based on fluid velocity changes.
  • System Safety: Prevents dry-running or overheating by locking out equipment during low-flow states.
  • Versatile Operation: Compatible with a wide variety of industrial and commercial hydronic applications.

⚠️ Application Profile: Primarily utilized in commercial HVAC piping, industrial water treatment systems, process cooling loops, and high-pressure boiler auxiliary equipment requiring environmental protection.

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