SE Digest 178

Float Switches

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

22 PRESSURE, VACUUM, AND FLOAT

Refer to Catalog 9034CT9701

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Closed Tank, Class 9037 Type E

Type E switches are flange mounted and float movement is transmitted through a Quad Ring ® seal. Build up the switch to meet your exact requirements from the basic switch, float rod, and float groups below. Switch may be assembled in the field to give contacts that open on liquid rise or close on liquid rise. Consult Schneider Electric for use in media with a different specific gravity than water. Ambient temperature ratings: Min. -30 °C (-22 °F); Max. +105 °C (+220 °F) Table 22.93: Class 9037 Type E Application Post Length L (in.) NEMA1 NEMA4 NEMA7&9 Catalog No. Catalog No. Catalog No. For minimum water level change 2-5/8 9037EG8 9037EW8 9037ER8 4-11/16 9037EG10 — — For maximum water level change 2-5/8 9037EG9 9037EW9 9037ER9 4-11/16 9037EG13 9037EW13 —

SWITCHES

9037EG with 9049ER3 Rod Kit and 9049EF1 Float

Table 22.94: Class 9049 Floats for Type E Switches Description

Catalog No.

#304 stainless steel #316 stainless steel

9049EF1 9049EF2

Table 22.95: Class 9049 Float Rod Kits Catalog No. A(in.) F (in.)

R(in.)

H(in.)

9049ER1 9049ER2 9049ER3 9049ER5 9049ER7 9049ER12

1.00 1.00 1.00 1.00 1.00 1.00

4.75 4.75 4.75 4.75 5.00 5.75

1.75

8.25 9.00 9.50

2.5

3.50 5.25 7.25

11.75 13.75 18.75

12.25

Type EG Dimensions, in. (mm) For 9037ER/EW dimensions and rod positions, see catalog 9034CT9701

File No. E12158 and E12443 Haz Loc

3.69 94

2.69 68

File 25490 except Types ER8, ER9

0.25 6

1.11 28

1.06 27

2.63 67

NEMA 1 Enclosure,

Post

3.97 101

Opening for conduit on both sides

2.5 64

Net Weight 4 lb (1.8 kg)

1.97 50

4.5 114

R

2.38 60

*

* Short length

(Dimension L)

3.63 92

DIA.

of Float

F

CL of Flange

0.97 25

5.75 146

diameter

CL of Flange

0.41 10

4 Holes

Dia.

H

4.41

112

5.13

0.13 3

Wide Bead

dia.

130

dia.

Shown with Rod Kit and Float Kit installed, with Pattern for hole in tank. Recommended hole size = diameter.

4.19 106

22-30

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8/17/2020