Air flow measuring hood featuring a white base and a transparent bag shaped like a funnel

S688A1007 | Resideo | Flow

Air Flow, Switch, Single Pole, Double Throw (SPDT), 75-250 FPM

Brand:Resideo

MPN:S688A1007

SKU:S688A1007

List Price:

$296.47

Today's Price:

$154.16

product datasheet

catalog page

product specifications

Type

Sail Switch

product series specifications

Switching Action: SPDT snap-acting switch

Sail Material: Polyester film sealed on music wire frame

Minimum Air Flow:

N.O. Contacts: Makes: 250 FPM; Breaks : 75 FPM

N.C. Contacts:Makes: 75 FPM; Breaks: 250 FPM

Maximum Ambient Temp.: 125°F (52°C) at switches; 170°F (77°C) at sail

Mounting Means: Switch mounts on return air duct with two sheet metal screws. An adhesive backed mounting template is provided. Sail is inserted into duct through 1.5" H x 2.3" W (3.8 x 5.8 cm) hole

Mounting Position: Mounts in vertical (up or down) or horizontal air flow

Wiring Knockouts: 0.5” conduit knockouts in either end of case

Finish: Zinc plated case and cover

Dimensions: 3.0"H x 3.8" W x 2.0" D (7.6 x 9.7 x 5.1 cm); sail dimensions: 5" wide max.; 26.2 sq. in. of area

product series features

Polyester film sail directly mounted to a snap-acting micro switch for positive feedback
Removable spring counterbalances allows mounting in either vertical or horizontal ductwork
Top and bottom knockouts in enclosure for flexibility in conduit run layout and wiring convenience
Low velocity switch operation for reliable indication - makes at 250 fpm and breaks at 75 fpm

more information & related documents

Series Description

The Honeywell S688 Series sail switch proves duct air flow with a contact output signal to a building automation system, electronic air cleaner, humidifier or other system. The S688 is typically mounted in a return air flow duct where the sail will be in the direct path of an unobstructed air stream.

Kele Description

SPDT SAIL SWITCH

Manufacturer

Resideo