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Process Control Instrumentation, Field Devices and Industrial Automation
PRODUCTS & SERVICES is a provider of process control and field instruments for Oil & Gas, Industrial Machinery, Pipelines, Custody Transfer, Tank Gauging, Waste Processing, Water Treatment Plants, Burner Management Systems and Incinerators, Conveyor Control, Food & Beverage, Motor, Pump & Compressor Control, Wireless Telemetry, Data Logging, Real-Time Process Data to Web.

Our Broad spectrum of products, 20+ years of experience with industrial automation, process control and hands-on approach ensure the success of Your project

At ControlSystemsUSA, you deal with the people who have actual and extensive experience in the use of process control instrumentation.

We are authorized resellers of instruments such as

  • Radio Modems
  • Flow Transmitters, Indicators, Sensors and Switches.
  • Pressure Switches, Indicators and Transmitters.
  • Level Switches, Indicators and Transmitters.
  • Temperature Elements, Switches and Transmitters.
  • Electric Power Measurement Devices.
SKU#(342) Be the First to Review this Item


NEMA-1 OR NEMA-4 (IP40 IP65)

$94.69     Availability: 7 Days
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Intec DBSL Duct Air Flow Switch for Air and non aggressive gases. Stainless Steel paddle. NEMA 1 or 4 Housing. Single-stage operation. 1 or 2 SPDT outputs. IP40 or IP65.

Part# with Options:        DBSL-1EPL-1US
Price with Options:        94.69


(1) Output for Intec DBSL
(2) Housing for Intec DBSL

  Availability 7 Days  ]


Duct air flow switches.


Control and monitor air and non aggressive gases flow in ducts, chambers, etc., of heating, cooling, and air conditioning equipment.

  • NEMA 1 & 4 housing
  • Cut-in and cut-out
  • Stainless steel paddle
  • Brass level

Type of operationOn/Off, single-stage, micro switch
Output1 SPDT, or 2 SPDT, 24/250 VAC, 15 (8) A
Cut-out Flow rate switchingMin. 197 ft/min (1.0 m/sec)*
Max. 1,575 ft/min (8.0 m/sec)
Cut-in Flow rate switchingMin. 492 ft/min (2.5 m/sec)
Max. 1,811 ft/min (9.2 m/sec)
Flow rate setting adjustmentInternal screw
Sensing elementPaddle
Paddle size3.2 x 6.9 in. (80 x 175 mm)
Paddle w/level - Length7.9 in. (200 mm)
Flow applicationsAir and non aggressive gases
Paddle materialStainless steel
Paddle level materialBrass
Permissible ambient temperatureHousing: -40F to 185F (-40C to 85C)
Paddle: 14F to 185F (-10C to 85C)
Permissible ambient humidity10...90% RH, non-condensing
Wire ConnectionTerminal with wire retaining screws
Wire SizeMaximum 14 AWG (2.5 mm 2 )
Cable entryM20 fitting, replaceable by 1/2" conduit connector
Housing MaterialBase: Steel, galvanized
Cover: ABS, fire retardant
Housing ColorDark gray/blue
Housing ProtectionNEMA 1 (IP 40), or NEMA 4 (IP 65)
Housing Dimensions4.3 x 2.8 x 2.8 in. (108 x 70 x 72 mm)
InstallationDuct mounted
Ship weight1.6 lb (0.7 kg)

B2B Checkout Options: PO#, Designated Carrier and Tax-Exempt purchase
Payment Options: Credit Card, Credit Card Over the Phone, PAYPAL, Wire Transfer, Check and Money Order

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> SWITCHES > NEMA-1 OR NEMA-4 (IP40 IP65) :    1 Items found.

Intec DBSF Watertight liquid flow Switch with adjustable setpoint. Stainless Steel paddle. NEMA 1 or 4 Housing. Single-stage operation. 1 or 2 SPDT outputs. IP40 or IP65.



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