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  • Open-Tank-9036

    Type D and G
    The Class 9036 Type D and G float switches are lever operated and designed for open tank applications. These switches are floor mounted, or they can be pedestal mounted using mounting plate 9049UMS1. They are available in NEMA Type 1, NEMA Type 4, or NEMA Type 7 and 9 enclosures.

    Key Features

    • Sump or Open Tank Type DG, GG
    • Double-pole rated
    • 2 HP at 115 Vac / 3 HP at 230 Vac
    • Designed for automatic control of liquid level in open sumps or tanks handling small motor loads directly or through a starter
    • NEMA Type 1 Indoor Enclosure
    • Type GG – heavier duty for light commercial and industrial applications


    Type FG
    The Class 9036 Type FG30 pedestal-style sump pump 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 float switch controls the On and Off positions corresponding to the water levels changes required to turn the pump or alarm on and off.

    Key Features

    • Pedestal Style Type FG30
    • Designed for liquid level control with electric motor operated pumps either directly or through a magnetic starter
    • Can also be used to activate alarms in liquid level control systems
    • 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

  • Closed-Tank-9037

    Type E
    The Class 9037 Type E switches are flange mounted. Float movement is transmitted through a quad ring seal. Each switch consists of a basic switch, float rod, and float. The switch can be configured in the field for contacts that open on liquid rise or close on liquid rise. These switches are used for top mounted or side mounted, closed tank applications.

    Key Features

    • Closed Tank-Type EG
    • NEMA Type 1 Indoor Enclosure
    • Double-pole rated
    • 2 HP at 115 Vac / 3 HP at 230 Vac
    • Switches are flange mounted and float movement is transmitted through a stuffing box
    • Can be built up to meet exact requirements from the basic switch, float rod and float groups
    • Switch may be assembled in the field to give contacts that open on liquid rise or close on liquid rise


    QUAD-RING® is a registered trademark of Minnesota Rubber Co. VITON® is a registered trademark of DuPont Co.

    Type H
    The Class 9037 Type H switches are attached to the tank by means of a 2-1/2 in. bushing. An external pointer indicates the float position within the tank when the unit is mounted. Switches come complete with stainless steel float and rod. A nitrile rubber seal, such as a Buna-N quad ring seal, is used between the float rod and the sealing connector. Normal application is at atmospheric pressure. Where higher pressures are encountered, the available Viton® seal allows the switch to withstand tank pressures up to 50 psi at ambient temperatures up to 220 °F. Occasional replacement of the quad ring seal may be necessary.

    Key Features

    • Closed Tank-Type HG
    • NEMA Type 1 Indoor Enclosure
    • Double-pole rated
    • 2 HP at 115 Vac and / 3 HP at 230 Vac
    • Type HG switch is attached to tank by means of 21/2 " screw connection
    • Switches come complete with stainless steel float and rod
    • Buna N Quad-Ring® seal is used between the float rod and sealing connector
    • Can withstand tank pressures up to 50 PSIG at temperatures up to 220°F

  • Closed-Tank-9038

    Alternators are designed to provide motor alternation in the operation of two motors.

    Key Features

    Type A (Open Tank)
    The Class 9038 Type A Open Tank level switch is a mechanical alternator designed to provide motor alternation in the operation of two motors.

    Type C (Closed Tank, Bushing Mounted)
    The Class 9038 Type C Closed Tank level switches are bushing mounted. Float movement is transmitted through a quad ring seal. Each switch consists of a basic switch, rod, and float.
    Type C switches are attached to the tank by means of a 2-1/2 in. bushing. An external pointer indicates the float position within the tank when the unit is mounted. Switches come complete with bushing, stainless steel float, and rod.

    Type D (Closed Tank, Flange Mounted, Top)
    Type D mechanical alternators are designed for applications where flange mounting is to be made at the top of a closed tank.