Series MDA Miniature Adjustable Pressure Switch

Adjustable Set Points from 0.1 to 100" of H2O

Series MDA Miniature Adjustable Pressure Switch is used to sense differential pressure. The switch features field adjustable set point and gold inlay contacts. The lightweight and compact size make the MDA ideal for any application with space constraints. Applications include industrial, HVAC, pump and motor control, medical, automotive, pools and spas.

50 PIECE MINIMUM ORDER.

Product Applications

Industrial
Medical
HVAC
Pump and motor control
Automotive
Pools and spas

Starting at $35.75

Ordering

Grouped product items
Model	Description	Availability*	Price
MDA-011-T	Miniature adjustable pressure switch, min. set point 0.1" w.c. (0.25 mbar), max. set point 0.5" w.c. (1.25 mbar).	1-3 days*	$37.80
MDA-111	Miniature adjustable pressure switch, min. set point 0.5" w.c. (1.25 mbar), max. set point 2.0" w.c. (4.98 mbar).	1-3 days*	$35.75
MDA-211	Miniature adjustable pressure switch, min. set point 2.0" w.c. (4.98 mbar), max. set point 15" w.c. (37.37 mbar).	1-3 days*	$35.75
MDA-311	Miniature adjustable pressure switch, min. set point 15" w.c. (37.37 mbar), max. set point 60" w.c. (149.3 mbar).	7-8 Weeks*	$35.75
MDA-411	Miniature adjustable pressure switch, min. set point 60" water (149.3 mbar), max. set point 100" water (249.10 mbar).	1-3 days*	$35.75

Specifications

Switch Type:: SPST normally open.
Switching Media:: Air (compatible fluids on “high” side).
Pressure Limits:: MDA-0XX: 4 psi; MDA-1XX: 8 psi; MDA-2XX: 8 psi; MDA-3XX: 15 psi; MDA-4XX: 30 psi.
Current Rating:: 40 mA resistive; Cycle life: More than 20 million cycles.
Operating Temperature:: 40 to 150°F (4 to 66°C).
Storage Temperature:: -46 to 150°F (-43 to 66°C).
Contacts:: 18K gold inlay.
Electrical Connections:: Terminals - 0.187" x 0.20: spade (recessed) for use with quick disconnects.
Pressure Connections:: Smooth port 5/32" diameter for 1/8" ID tubing.
Housing:: Polycarbonate.
Diaphragm Material:: Polyurethane (MDA-0XX: PTFE).
Operating Voltage:: AC/DC - 30 V or less with resistive load.
Mounting:: Use #4 screws through mounting lugs or #2 screws through eyelets.
Weight:: Less than 0.353 oz (10 g).

Features

Support Library

Approvals

Drawings

Model Chart

     MDA-XXX-OPT    MDA MINIATURE ADJUSTABLE PRESSURE SWITCH
    
          1ST SYMBOL (1ST X) SET POINT RANGE
             0   0.1 - 0.5 IN WC
             1   0.5 - 2 IN WC
             2   2 - 15 IN WC
             3   15 - 60 IN WC
             4   60 - 100 IN WC
             5   0.03 - 0.1 IN WC            
    
          1ST SYMBOL (2ND X) LOW PORT CONNECTION
             1   TOP MOUNT SMOOTH PORT FOR 1/8 ID TUBING
             2   SIDE MOUNT BARB FOR 3/16 ID TUBING
    
          1ST SYMBOL (3RD X) HIGH PORT CONNECTION
             1   TOP MOUNT SMOOTH PORT FOR 1/8 ID TUBING
             2   SIDE MOUNT BARB FOR 3/16 ID TUBING
             3   BOTTOM MOUNT 1/8 MALE NPT CONNECTION
         
          OPTIONS (OPT)
            -PRESET  PRESET SWITCH
            -T       PTFE

          NOTES
            #1. 50 PIECE MINIMUM REQUIRED FOR ALL CONFIGURED ITEMS.

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