SE Digest 178

Open Tank, 9036FG, and Closed Tank, 9037E

Float Switches

www.se.com/us Refer to Catalog 9034CT9701 Table 22.90: Maximum Forces at Which Switches Are Tested (oz) Type ForceUp ToTrip Weight Supported with Compensating Spring Type (with or without FormH) Force Down ToTrip

ForceUp toTrip

ForceDown toTrip

Weight Supported with Compensating Spring at Max. Adjustment (oz)

Lever Length Position

[4]

DG2

9 8 8 8 8

8 8 8 8 8

60 60 66 66 66

GG2 GG2

Short Long Short Long Short

33 21 30 22 24 22 20

39 27 24 16 31 29 27

DG2FormR

100

[4]

DW31

GG2FormR GG2FormR GR1,GW1 GR1,GW1 GR1,GW1

DW31FormR

150

DR31

80 72 64

Medium

SWITCHES

DR31FormR

8

8

66

Long

Type DG Dimensions

Type GG Dimensions

3.87 98

2.53 64

3.43 87

3.93 100

1.93 49

22 PRESSURE, VACUUM, AND FLOAT

2 Holes

0.30 8

0.41 10

Dia.

0.78 20

2.53 64

0.94 24

5.56 141

0.87 Dia. Knockout for 0.50 Conduit in 3 Sides

3.61 97

2.20 56

Reverse action

1.31 33

4 Holes

1.44 37

2 Holes Dia.

1.13 29

Dia. 0.28 7

0.73 19

0.31 8

0.63 16

0.41 Dia. Holes

4.38 111

1.76 45

0.28 7

3.50 89

1.37 35

2.38 60

Pin Position "A" Contacts Open in Up Position

Pin Position "B" Contacts Closed in Up Position

1.09

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)

1.12 29

1.12 29

26 1.87 48

1.87

48 2.18 55

Form R (Reverse action)

2.87 73

(Standard action)

1.50 38

2.62 67

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) For Type GR/GW dimensions, see catalog 9034CT9701.

Short

Long

For Type DR/DW 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

115V 2hp

230 V 460/ 575 V 115 V

230 V 460/ 575 V 32 V

115V 1/2hp

230V 1/2hp

9036DG, DR, DW (2-pole), FG 9036GG, GR, GW (2-pole) 9036G Form H (1 N.O., 1 N.C.)

3hp 3hp 2hp 3hp 3hp

5hp 5hp

1hp 5hp

1/4hp 1/2hp

A600 A600 A300 A600 A600

— 3hp

2hp 1hp 2hp 2hp

5hp 2hp

3hp

1hp

1hp

1/2hp 1/2hp 1/2hp

—

—

—

— 1/2hp

9037EG, ER, EW; HG, HR, HW (2-pole)

5hp 5hp

1hp 1hp

1/4hp 1/4hp

1/2hp 1/2hp

— 3hp — 3hp

9038 All Devices (2-pole)

Open Tank or Sump Applications, Float Switch, Class 9036 Type FG 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

9036FG, 9049A60, and 9049A61

[4] Compensating spring not effective in combination with Short lever length position. [5] See 1993 NEC Article 430-84

22-29

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8/17/2020