B

B-X

COMPACT FAN AND FILTER FAN

AIR FLOW MONITOR

U

Reliable Mechanical

Switch Contact

U

Small Size

U

Economical

U

Easily Installs

Via Clip or Clamp

U

Versatile Fields

of Application

The FSW800 Series air-flow monitor

provides a simple but reliable

alternative to indicate positive or

negative air flow of fans. When

properly installed and connected

in series with an optical (i.e. LED)

or audible signaling device, a bi-

directional switch will activate an

electrical contact if the air flow of

the fan falls below 8.2 ft/s, thus either

turning the signaling device on or off.

SpECIFICAtIonS

Contact type: Reed/magnet contact

nC (normally Closed): Contact open

with air flow

no (normally open): Contact closed

with air flow

Switching threshold of Air Flow

Speed: >8.2 ft/s (2.5 m/s)

Hysteresis: 3.3 ft/s (1 m/s)—fixed

Contact Resistance Incl. Wire:

370 m (1214')

Service Life: >100,000 cycles

Maximum Switching Capacity: 10 W

(resistive load)

Maximum Switching Voltage: NC, AC/

DC 240 V/NO, DC 60V

Maximum Switching Current: NC, DC

500 mA/NO, DC 170 mA

Connection: 2 x single strand AWG

26, length 500 mm (20"), tip of stranded

wire stripped/tinned 5 mm (0.20")

Mounting: Attachment clamp and/or

clip, or integrated in protective grill

Housing: Plastic, UL 94HB, black

Dimensions: 34 x 17.5 x 7.5 mm

(1.3 x 0.7 x 0.3")

Mounting position: Air-flow monitor

opening perpendicular to air flow

operating temperature:

-20 to 50°C (-4 to 122°F)

Storage temperature:

-20 to 80°C (-4 to 176°F)

protection type: NEMA 1 (IP 20)

Agency Approvals: UL and VDE

To Order

Model no.

Description

Weight

FSW801

Air-flow switch, NC with mounting clip and clamp

6 g (0.2 oz)

FSW802

Air-flow monitor, NO with mounting clip and clamp

6 g (0.2 oz)

FSW803

Air-flow monitor, NC with 80 x 80 mm

20 g (0.7 oz)

(3.15") finger guard

FSW804

Air-flow monitor, NO with 80 x 80 mm (3.15")

20 g (0.7 oz)

finger guard

FSW805

Air-flow monitor, NC with 92 x 92 mm (3.62")

20 g (0.7 oz)

finger guard

FSW806

Air-flow monitor, NO with 92 x 92 mm (3.62")

20 g (0.7 oz)

finger guard

FSW807

Air-flow monitor, NC with 120 x 120 mm (4.72")

31 g (1.1 oz)

finger guard

FSW808

Air-flow monitor, NO with 120 x 120 mm (4.72")

31 g (1.1 oz)

finger guard

Comes complete with operator’s manual.

Ordering Example: FSW803, air-flow monitor, NC with 80 x 80 mm finger guard.

Dimensions: mm (inch)

+

-

Wiring Example

e.g. signal

device

+

-

7.5 (0.3)

34 (1.3)

+

-

80 x 80

(3.15 x 3.15)

92 x 92/120 x 120

(3.62 x 3.62/4.72 x 4.72)

Air-flow monitor integrated

in protective grill

FSW801 shown larger than actual size.

FSW800

Series