How to Guide

Commercial Pressure and Float Switches for Power Circuits
Float Switches—Class 9036, 9037, and 9038
49
03/2011
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Class 9036 Type D and G Open Tank Float Switches
Table 11 lists Class 9036 float switches and modifications.
• When ordering a factory installed modification, add the Form number to the end of the float
switch catalog number. For example, to select a 9036DG2 switch with reverse action, order
9036DG2R.
• Field installed modifications, when available, are ordered as kits.
Table 11: Class 9036 Float Switches
Specifications
Description 2-pole, single-lever operated float switches
Applications Open industrial tanks and sump applications
General Purpose
Heavy Duty
Catalog Numbers
Contact Action Close on Liquid Rise Open on Liquid Rise Close on Liquid Rise Open on Liquid Rise
NEMA Type 1
[1]
9036DG2 9036DG2R 9036GG2 9036GG2R
NEMA Type 4 9036DW31 9036DW31R 9036GW1
[2]
9036GW1R
[2]
NEMA Type 7, 9 9036DR31 9036DR31R 9036GR1
[2]
9036GR1R
[2]
NOTE: A compensating spring supports the weight of long rods that cannot be supported by center-hole floats. A compensating spring is standard on Types GR
and GW, and can be ordered as a modification (Form C) on other Class 9036 Type D and G float switches.
Modifications
Factory Installed Field Installed
Class 9036 Form Kit Catalog Number
For Type D (General Purpose)
Reverse action (Type DG) R 9049A58
Compensating spring (Type DG) C 9049A19
Compensating spring (Types DR and DW) C 9049A20
Compensating spring and reverse action (Types DG, DR, and DW) CR —
For Type G (Heavy Duty)
Reverse action
[3]
R—
Compensating spring (Type GG)
[4]
C 9049A13
Compensating spring and reverse action (Type GG) CR 9049A13
1 N.O.–1 N.C. contact configuration H —
Compensating spring and 1 N.O.–1 N.C. contact configuration (Type GG) CH —
1
Contact action can be converted in the field by installing the appropriate float rod lever.
2
Compensating spring standard. Use center-hole float accessories.
3
Type GG is field convertible without the use of a kit. Types GR and GW are not field convertible.
4
Compensating spring standard on Types GR and GW.