How to Guide

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All Rights Reserved
Commercial Pressure and Float Switches for Power Circuits
Float Switches—Class 9036, 9037, and 9038
66
03/2011
Use the following table to select the appropriate rod kit when ordering Class 9038 Type DG10, DW10,
or DR10 alternators.
Table 30: Class 9049 Rod Kits for Class 9038 Type DG10, DW10, and DR10 Alternators
Float Travel for Class 9038 Types DG10, DW10, and DR10 Alternators
Minimum Water Level Change (V = 4.69 in. / 119 mm)
Catalog No. 9049ER1 9049ER2 9049ER3 9049ER5 9049ER7 9049ER12
Dimensions in. (mm)
R 1.75 (44) 2.5 (64) 3.25 (83) 5.25 (133) 7.25 (184) 12.25 (311)
H
[1]
1
Add 2.5 in. (64 mm) to H when using HF3 or HF4 floats.
7.5 (191) 8.25 (210) 9 (229) 11 (279) 13 (330) 18 (457)
A
Min. 0.5 (13) 1 (25) 1.5 (38) 2.5 (64) 3.25 (83) 6 (152)
Max. 1.5 (38) 2 (51) 2.5 (64) 4 (102) 5.5 (140) 9.25 (235)
BMin.8 (203) 8.75 (222) 9.5 (241) 11.5 (292) 13.5 (343) 18.5 (470)
C
Min. 7 (178) 7.75 (194) 8.25 (210) 10 (254) 11.5 (292) 15.5 (394)
Max. 7 (178) 7.5 (191) 8.25 (210) 10 (254) 12 (305) 17 (432)
D
[2]
2
D is negative when the top of the float is below the horizontal centerline.
Min. 1.75 (44) 1.75 (44) 1.5 (38) 1.25 (32) 1 (25) 0.5 (13)
Max. 0.5 (13) 0.25 (6) 0.0 (0) 1 (25) 1.5 (38) 2.75 (70)
F
Min. 8.75 (222) 10.5 (267) 11 (279) 12.75 (324) 14.5 (368) 19 (483)
Max. 8.5 (216) 9 (229) 9.5 (241) 10.5 (267) 12 (305) 15.75 (400)
G
Min. 3.25 (83) 3.5 (89) 3.5 (89) 3.75 (95) 4 (102) 4.75 (121)
Max. 4.75 (121) 5 (127) 5.25 (133) 6 (152) 6.75 (171) 8.5 (216)
Figure 24: Type DG Dimensions
Figure 25: Type DR/DW Dimensions
H
F
G
R
V
C
L
of
Flange
C
L
of
Flange
3.63
92
0.31
8
5.75
146
1.53
39
4.44
113
2.47
63
5.13
130
0.41
10
0.13
3
4.41
112
4.5
114
2.53
64
4.69
119
1.47
37
Wide Bead
5.59
142
5.59
142
6.84
174
Dia.
Dia.
4 Holes
(2) PLS
0.5–0.75 (13–19)
4 knockout holes for
conduit on each end
Note: The recommended size of hole in the tank for the
entry of the float and mounting of the control is 4.19 (106).
Floats shown are Type EF, 4.5 (114) long.
Add 2.5 (64) to H if using Type HF Floats, which are 7.0 (178) long.
H
F
G
R
V
C
L
of
Flange
C
L
of
Flange
3.63
92
2.44
62
0.31
8
5.75
146
5.13
130
0.41
10
0.13
3
4.41
112
4.5
114
4.44
113
0.97
25
5.16
131
Wide Bead
6.31
160
7.13
181
Dia.
Dia.
(4) Holes
Two 3/4-14 in.
conduit connection
on both ends