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Mechanical Alternators, Closed Tank, Type
D
Float Switches
Class 9038 / Refer to Catalog 9034CT9701
Type D, Closed Tank, Top Mounted
Type DG Shown with
Rod Kit 9049ER5 and
Float Kit 9049HF3 Installed.
File No. E12158,
excludes NEMA 7 & 9 products
(9038AR, CR, and DR)
File LR25490,
excludes NEMA 7 & 9 products
(9038AR, CR, and DR)
Designed for applications where mounting is to be made at the top of a closed tank.
Table 22.103: Class 9038 Type D Contacts Close On Liquid Rise
Water Level Change
Hinge Post
Dimension
“V” (in.)
NEMA 1 NEMA 4 NEMA 7 and 9
Cat. No. Cat. No.
Catalog No.
Min.
2-5/8
9038DG7 9038DW7 —
Max. 9038DG8 9038DW8 9038DR8
Min.
4-11/16
9038DG9 — —
Max. 9038DG10 — —
Float Kits, For Use with Type D Switches Float Rod Kit, Class 9049
Size and Material
Diameter x Length (in.)
Catalog No.
Catalog No. R (in.) H (in.) G (in.) F (in.)
9049ER1 1.75 8.25 3.25 8.75
9049ER2 2.50 9.00 3.50 10.50
3.625 x 4.50, #304 stainless steel
9049EF1 9049ER3 3.25 9.50 3.50 11.00
3.625 x 4.50, #316 stainless steel
9049EF2 9049ER5 5.25 11.75 3.75 12.75
2.50 x 7, #304 stainless steel
9049HF3 9049ER7 7.25 13.75 4.00 14.50
2.50 x 7, #316 stainless steel
9049HF4 9049ER12 12.25 18.75 4.75 19.00
Table 22.104: Available Modifications for All Mechanical Alternators [13]
Description
Form
Compensating spring (Type AG)
C
Omit 2-1/2 in. connecting bushing (Type CG, CR, CW)
F3
Omit float (Type CG, CR, CW)
L
Two-level non-alternating unit
N4
Addition of a third, high-water alarm circuit (Type AG, AR, AW, CG, DG only)
N5
High-water alarm circuit, 2-pole (Type CG only)
N25
Reverse action (contacts open on Rise)
R
Viton
®
packing, 5 oz. float (diesel fuel) (Type CG)
Z19
Viton packing (Type CG, CR, CW)
Z20
#316 stainless steel float and Viton packing (Type CG, CR, CW)
Z21
Type DG Dimensions, in. (mm)
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
4 knockout holes for
0.5–0.75 (13–19)
conduit on each end
Note: Floats shown are Type EF, 4.5 (114) long.
The recommended size of the hole in the tank for the
entry of the float and the mounting of the control is 4.19 (106).
Add 2.5 (64) to "H" if using T
ype HF Floats, which are 7.0 (178) long.
Table 22.105: Temperature Ratings for Class 9038
Description Rating
Ambient Temperature -22 to 200 °F (-30 to 93 °C)
Media
Buna-N Seal
Up to 215 °F (102 °C)
Viton
®
Seal
Up to 250 °F (121 °C
22
PRESSURE, VACUUM, AND FLOAT
SWITCHES
[13] Some product configurations are not available—contact your Schneider Electric representative for details.