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Dwyer Air Flow Switch Model 530

The Model 530 Air Flow Switch provides excellent sensitivity and reliability at a very reasonable price. Quality features include a rugged die cast body, stainless steel vane and SPDT snap switch. Unit is field adjustable from 400 - 1600 FPM. Mounting is fast and simple, with only two screws needed. Vane fits 6 in. or larger ducts.
SUGGESTED SPECIFICATION
Air flow switches shall be operated by a 7 ½" SS vane actuating a SPDT snap switch. Vane motion shall be restrained by a calibrated spring adjustable to the exact actuation point required. Vane motion shall be transmitted to the switch by direct mechanical linkage. Switch shall be Dwyer Instruments, Inc. Model No. 530.
PHYSICAL DATA
Adjustable Range:
400 - 1600 FPM
(300 - 1600 with vane vertical, pointing up)
Electrical:

½" HP: 


125 VAC - 9.8 amp full load
            58.8 amp locked rotor
250 VAC - 4.9 amp full load
            29.4 amp locked rotor
Pitot Duty Rating:  470 VA at 125, 250 VAC
Resistive:  15 amp at 125, 250, or 480 VAC
Temperature:
Maximum 180°F (82°C)
Wiring Connections:
3 screw type; common, normally open and normally closed
Conduit Connection:
½" NPT female
Housing:
Aluminum die casting with chemical conversion coating for corrosion protection; steel stamping, zinc plated
Gasket:
Silicone rubber
Vane:
Stainless steel
Installation:
Mount in any position in horizontal duct
Duct Size:
6 in. or larger
Weight:
1 lb., 1 oz.
CAUTION:  FOR USE ONLY WITH AIR OR NON-COMBUSTIBLE NON-CORROSIVE GASES. UNIT IS NOT SEALED AGAINST DUST.
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