P.O. BOX 17062 CLEARWATER, FL 33762
PH. 1-727-789-5786  FAX 1-727-572-9926
FLORIDA WATER BLAST, INC.
www.floridawaterblast.net
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PUMP RAIL & FLOAT SWITCHES
... Float Switches Normally Open or Closed
FLORIDA WATER BLAST, INC.  Clearwater Florida Ph. 1-727-789-5786

NORMALLY OPEN (N/O)
As the float rises 1” (5°) above horizontal, the contacts
become closed and actuate (turn on) the switch. This float
is generally used in pump down applications.
NORMALLY CLOSED (N/C)
As the float rises 1” (5°) above horizontal, the contacts
become open and actuate (turn off) the switch. This float
is generally used in pump up applications.
SINGLE POLE, DOUBLE THROW (SPDT)
A variation of the N/0 & N/C, this float switch can be wired
to operate as either (but not both) a normally open or normally
closed switch based on the user’s need.
Designed for accurate liquid level control in many applications including sewage and wastewater
environments. The float switch can be utilized to signify specific water levels or for direct alarm
actuation.
The float uses a steel tube mercury switch designed to operate under min/ max temperatures of 32 -
170° F, and has an electrical rating of 10 AMPS @ 120 VAC, 3 AMPS @ 240 VAC. The power cord
is a chlorinated polyethylene (CPE) type ST0W-600 Volt on 18/2 for N/0 or N/C switch or 18/3 for
SPDT switch. The float is constructed of a durable PP outer shell and a solid polyurethane foam
interior. It is tested and proven to be leak proof, shock proof, and impact resistant. For use with
intrinsically safe circuits. The internal cord weight is made of cast iron and is placed inside the
neck of the float housing. No external weight is needed and the height can be adjusted by simply
raising or lowering the float in the basin.

Single pole - single throw 10 Amp/ 120VAC narrow angle mercury switch

10’

15’

20’

25’

30’

40’

50’

2900-B4-S1

Internally weighted

bulb

$37.40

$39.10

$42.50

$45.90

$49.30

$56.10

$52.90

2900-B4-S1-C2

Internally weighted

bulb w/ clamp - poly

band

$39.95

$41.65

$45.05

$48.45

$51.85

$58.65

$55.45

2900-B4-S1-C3

Internally weighted

bulb w/ clamp -

stainless band

$40.80

$42.50

$45.90

$49.30

$52.70

$59.50

$66.30

2900-B4-S1-C4

Internally weighted

bulb w/ releasable tie

strap

$39.95

$41.65

$45.05

$48.45

$51.85

$58.65

$55.45

Additional float switch options packaging options
Normally open control duty float switch
Normally closed control duty float switch

Single pole - single throw 10 AMP/ 120VAC narrow angle mercury switch

10’

15’

20’

25’

30’

40’

50’

2901-B4-S1

Internally weighted bulb

$37.40

$39.10

$42.50

$45.90

$49.30

$56.10

$62.90

2901-B4-S1-C2

Internally weighted bulb w/ clamp - poly band

$39.95

$41.65

$45.05

$48.45

$51.85

$58.65

$65.45

2901-B4-S1-C3

Internally weighted bulb w/ clamp - stainless band

$40.80

$42.50

$45.90

$49.30

$52.70

$59.50

$66.30

2901-B4-S1-C4

Internally weighted bulb w/ releasable tie strap

$39.95

$41.65

$45.05

$48.45

$51.85

$58.65

$65.45

Normally open/ closed control duty float switch

Single pole - double throw (SPDT)

10 AMP @ 120 VAC narrow angle

mercury switch

10’

15’

20’

25’

30’

40’

50’

2902-B4-S2

Internally weighted

bulb

$48.45

$50.15

$55.68

$61.20

$66.73

$77.78

$88.83

2902-B4-S2-C2

Internally weighted

bulb w/ clamp - poly

band

$51.00

$52.70

$58.23

$63.75

$69.28

$80.33

$91.38

2902-B4-S2-C3

Internally weighted

bulb w/ clamp -

stainless band

$51.85

$53.55

$59.08

$64.60

$70.13

$81.18

$92.23

2902-B4-S2-C4

Internally weighted

bulb w/ releasable

tie strap

$51.00

$52.70

$58.23

$63.75

$69.28

$80.33

$91.38

Bulk boxed - standard
K1 Individually boxed     ADD $1.50 to price per float switch
K2 Individually bagged   ADD $1.00 to price float switch
Cable length options
S1 Additional cable lengths    ADD $4.00 to price per float switch per 5’
S2 Additional cable lengths    ADD $6.50 to price per float switch per 5’
Control Duty Mercury Narrow Angle
Internally Weighted Switch

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