Dwyer Instruments SERIES CFS2 Catalog Page
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SERIES CFS2 | MERCOID® BY DWYER
CABLE FLOAT SWITCH
Mercury-Free, UL/CSA Approved Options
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N
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The Series CFS2 Cable Float Switch is a 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
• High reliability with mercury-free, magnetic, mechanical internal design
• Economical pricing with multiple option available for increased versatility
• Easy installation with counterweights and cable hangers to suit a variety of mounting
applications
APPLICATIONS
• Water level monitoring
• Tank level control
• High or low level alarm
• Municipal water control
• Industrial water control
• Filling or draining reservoirs and tanks
• Pump automation
SPECIFICATIONS
Service: Compatible liquids.
Wetted Materials: Enclosure: Polypropylene; Cable: See model chart.
Temperature Limits: 32 to 122°F (0 to 50°C).
Pressure Limits: 14.5 psi (1 bar).
Enclosure Rating: IP68.
Switch Type: See model chart.
Electrical Rating: CFS2-XXBXX-XX: 10 (8) A @ 250 VAC; CFS2-XXDXX-XX: 1 HP
@ 125 VAC 16 FLA; 2 HP @ 250 VAC 12 FLA.
Shipping Weight: Enclosure: 5.43 oz (154 g); Cable: 0.77 oz (21.27 g) per ft.
Agency Approvals: See model chart.
ACCESSORIES
Model Description
A-457
7.76 oz (220 g) counterweight
A-459
Cable hanger
MODEL CHART
Model Cable Type Approvals Switch Type Cable Length Model Cable Type Approvals Switch Type Cable Length
CFS2-ONBPN-20
CFS2-ONBPN-30
CFS2-ONBPN-40
CFS2-ONBPN-50
CFS2-CNBPN-20
CFS2-CNBPN-30
CFS2-CNBPN-40
CFS2-CNBPN-50
CFS2-DNBPN-7
CFS2-DNBPN-10
CFS2-DNBPN-15
CFS2-DNBPN-20
CFS2-DNBPN-30
PVC
PVC
PVC
PVC
PVC
PVC
PVC
PVC
PVC
PVC
PVC
PVC
PVC
CE
CE
CE
CE
CE
CE
CE
CE
CE
CE
CE
CE
CE
SPST NO
SPST NO
SPST NO
SPST NO
SPST NC
SPST NC
SPST NC
SPST NC
SPDT
SPDT
SPDT
SPDT
SPDT
20´ (6.10 m)
30´ (9.14 m)
40´ (12.19 m)
50´ (15.24 m)
20´ (6.10 m)
30´ (9.14 m)
40´ (12.19 m)
50´ (15.24 m)
7´ (2.13 m)
10´ (3.05 m)
15´ (4.57 m)
20´ (6.10 m)
30´ (9.14 m)
CFS2-DNBPN-40
CFS2-DNBPN-50
CFS2-DNBPN-60
CFS2-DNBPN-80
CFS2-DNBPN-100
CFS2-OGDSN-20
CFS2-OGDSN-30
CFS2-OGDSN-40
CFS2-OGDSN-50
CFS2-CGDSN-20
CFS2-CGDSN-30
CFS2-CGDSN-40
CFS2-CGDSN-50
PVC
PVC
PVC
PVC
PVC
SJOW
SJOW
SJOW
SJOW
SJOW
SJOW
SJOW
SJOW
CE
CE
CE
CE
CE
UL/CSA
UL/CSA
UL/CSA
UL/CSA
UL/CSA
UL/CSA
UL/CSA
UL/CSA
SPDT
SPDT
SPDT
SPDT
SPDT
SPST NO
SPST NO
SPST NO
SPST NO
SPST NC
SPST NC
SPST NC
SPST NC
40´ (12.19 m)
50´ (15.24 m)
60´ (19.29 m)
80´ (24.38 m)
100´ (30.48 m)
20´ (6.10 m)
30´ (9.14 m)
40´ (12.19 m)
50´ (15.24 m)
20´ (6.10 m)
30´ (9.14 m)
40´ (12.19 m)
50´ (15.24 m)
Level Switches,
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