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22-29
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Open Tank, 9036FG, and Closed Tank,
9037E
Float Switches
Refer to Catalog 9034CT9701
Table 22.90: Maximum Forces at Which Switches Are Tested (oz)
Type
Force Up
To Trip
Force
Down
To Trip
Weight Supported
with Compensating
Spring
Type (with or without
Form H)
Lever Length
Position
Force Up
to Trip
Force Down
to Trip
Weight Supported with Compensating
Spring at Max. Adjustment (oz)
DG2 9 8 60 GG2 Short 33 39
[4]
DG2 Form R 8 8 60 GG2
Long
21 27 100
DW31 8 8 66 GG2 Form R Short 30 24
[4]
DW31 Form R 8 8 66 GG2 Form R
Long
22 16 150
DR31 8 8 66
GR1, GW1
Short 24 31 80
DR31 Form R 8 8 66
GR1, GW1
Medium 22 29 72
GR1, GW1
Long
20 27 64
Type DG Dimensions Type GG Dimensions
0.30
8
3.93
100
0.78
20
1.31
33
0.31
8
0.41
10
0.94
24
2.53
64
2.53
64
0.63
16
3.50
89
4.38
111
2.20
56
1.44
37
1.76
45
1.13
29
2.38
60
2 Holes
Dia.
0.28
7
2
Holes
Dia.
Reverse
action
Float lever travel between closing and opening of contacts: short = 1 in. (25
mm), medium = 1.12 (28 mm), long = 1.25 in. (31.8)
1.09
26
1.87
48
1.87
48
2.18
55
2.62
67
1.50
38
Short
Long
(Standard action)
Pin Position
"B" Contacts
Closed in
Up Position
Pin Position
"A" Contacts
Open in
Up Position
Form R
(Reverse action)
0.73
19
3.87
98
3.43
87
1.12
29
1.12
29
2.87
73
5.56
141
1.93
49
3.61
97
1.37
35
0.87 Dia. Knockout
for 0.50 Conduit
in 3 Sides
0.41 Dia. Holes
Lever arm travel between closing and opening of contacts
Standard: short = 0.375 in. (10 mm), long = 0.625 in. (16 mm)
Form R: short = 0.5 in. (13 mm), long = 0.75 in. (19 mm)
4
Holes
Dia.
0.28
7
For Type DR/DW dimensions, see catalog 9034CT9701. For Type GR/GW dimensions, see catalog 9034CT9701.
Table 22.91: Electrical Ratings for All Float Switches
Applies to Class and Type
Control Circuit
Single Phase AC Polyphase AC [5]
DC
115 V 230 V 460/ 575 V 115 V 230 V 460/ 575 V 32 V 115 V 230 V
9036DG, DR, DW (2-pole), FG
A600
2 hp 3 hp
—
3 hp 5 hp 1 hp 1/4 hp 1/2 hp 1/2 hp
9036GG, GR, GW (2-pole)
A600
2 hp 3 hp 5 hp 3 hp 5 hp 5 hp 1/2 hp 1 hp 1 hp
9036G Form H (1 N.O., 1 N.C.)
A300
1 hp 2 hp 2 hp
— — — —
1/2 hp 1/2 hp
9037EG, ER, EW; HG, HR, HW (2-pole)
A600
2 hp 3 hp
—
3 hp 5 hp 1 hp 1/4 hp 1/2 hp 1/2 hp
9038 All Devices (2-pole)
A600
2 hp 3 hp
—
3 hp 5 hp 1 hp 1/4 hp 1/2 hp 1/2 hp
Open Tank or Sump Applications, Float Switch, Class 9036 Type
FG
9036FG, 9049A60, and 9049A61
The Class 9036 Type FG30 pedestal style float switch is designed for liquid level control
with electric motor operated pumps either directly or through a magnetic starter. It can
also be used to activate alarms in liquid level control systems. The upward or downward
movement of the lever arm of the Class 9036 Type FG30 float switch controls the On and
Off positions corresponding to the water level changes required to turn the pump or
alarm on and off.
Ambient temperature ratings: Min. -30 °C (-22 °F); Max. +105 °C (+220 °F)
Table 22.92: Type FG Float Switch and Accessories
Description Catalog Number
2-pole, NEMA 1, contacts close on liquid rise
9036FG30
Plastic center hole float (1 required)
9049A60
33.75 inch aluminum rod, 2 float stop assemblies and attaching hardware (1 required)
9049A61
22
PRESSURE, VACUUM, AND FLOAT
SWITCHES
[4] Compensating spring not effective in combination with Short lever length position.
[5] See 1993 NEC Article 430-84