SERIES FSW2 | MERCOID® BY DWYER
FREE-FLOATING LEVEL SWITCH
Designed for Industrial Applications, Mercury-Free, Self Counter-Weighted
Level Switches,
Float
8-23/6
5/8
The Series FSW2 Free-Floating Level Switch is a self-counterweighted, mechanically
actuated oating switch intended to activate electrical components, such as pumps, to
start and stop automatically. Optional cables are available. Contact factory for cable
length options ranging from 10 to 70´ (3 to 21 m).
FEATURES/BENEFITS
• Body is free of any irregularities allowing substances to effortlessly glide off and
consists of a double airtight chamber with high-pressure melted polypropylene
re-injection sealing to ensure a perfect seal reducing maintenance events
• High reliability with mercury-free, magnetic, mechanical internal design
• Economical pricing with multiple option available for increased versatility
• Seamless installation with self-counterweighted body and cable hangers to suit a
variety of mounting applications
APPLICATIONS
• Wastewater level monitoring
• Tank level control
• High or low level alarm
• Municipal wastewater control
• Industrial wastewater control
ACCESSORIES
Model Description
A-459 Cable hanger
MODEL CHART
Model Switch Type Cable Length ft (m) Model Switch Type Cable Length ft (m)
FSW2-ONPN-20
FSW2-ONPN-30
FSW2-ONPN-40
FSW2-ONPN-50
FSW2-CNPN-20
FSW2-CNPN-30
FSW2-CNPN-40
FSW2-CNPN-50
4-45/64
[119.50]
SPECIFICATIONS
Service: Compatible liquids, slurries.
Wetted Materials: Enclosure: Polypropylene; Cable: PVC.
Operating Temperature: 32 to 122°F (0 to 50°C).
Pressure Limits: 29 psi (2 bar).
Enclosure Rating: IP68.
Switch Type: See model chart.
Electrical Rating: 10 (3) A @ 250 VAC.
Mounting Orientation: Vertical.
Shipping Weight: Enclosure: 2.4 lb (1100 g); Cable: 0.77 oz (21.27 g) per ft.
Agency Approvals: CE.
SPST NO
SPST NO
SPST NO
SPST NO
SPST NC
SPST NC
SPST NC
SPST NC
20 (6.10)
30 (9.14)
40 (12.19)
50 (15.24)
20 (6.10)
30 (9.14)
40 (12.19)
50 (15.24)
FSW2-DNPN-10
FSW2-DNPN-15
FSW2-DNPN-20
FSW2-DNPN-30
FSW2-DNPN-40
FSW2-DNPN-50
FSW2-DNPN-60
FSW2-DNPN-80
FSW2-DNPN-100
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
SPDT
4-23/64
DWYER INSTRUMENTS, INC. |
10 (3.05)
15 (4.57)
20 (6.10)
30 (9.14)
40 (12.19)
50 (15.24)
60 (18.29)
80 (24.38)
100 (30.48)
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