Penn F261 Series Product Bulletin

F261 Series Fluid Flow Switches
Product Bulletin
The F261 Series Flow Switches respond to fluid flow in
lines carrying water, ethylene glycol, or other
nonhazardous fluids. These models also work in
applications with swimming pool water and lubricating
oils.
F261 Series Standard Flow Switches use a variety of
paddle sizes to respond to fluid flow rates in
applications with pipe sizes greater than 1 inch trade
size.
Table 1: Features and Benefits
Features
Type 3R (NEMA) or Type 4 (NEMA)
Polycarbonate Enclosure
Viton® Diaphragms
Low-Flow Operation on Low-Flow Models
Gold-Plated Contacts on Selected Models
Maximum Fluid Pressure of 290 psig
(20 bar)
Refer to the QuickLIT website
Figure 1: F261KAH Flow Switch
Benefits
Provides dust protection in indoor applications. Suitable for Use in Other
Environmental Air Space (Plenums) in accordance with Section 300.22(C)
of the National Electrical Code.
Allow use in fluid lines carrying chlorinated water, treated water, or other
nonhazardous fluids.
Actuates switch with less than 1.0 GPM (3.8 L/min) flow for water
applications or 9.0 GPM (34.1 L/min) flow for steam applications.
Reduce intermittent contact problems in low-voltage and low-current
circuits.
Permits use in a wide range of pressure flow conditions.
F261 Series Fluid Flow Switches Product Bulletin
Code No. LIT-12011987
Issued March 9, 2015
for the most up-to-date version of this document.
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