604SeriesDPSwitch
•AUTOMATED CALIBRATION PROCESS
  FOR HIGH ACCURACY
•INTEGRATED CABLE STRAIN RELIEF
•TRAPEZOIDAL BEAD DIAPHRAGM
  DESIGN INSURES LONG TERM SET
  POINT STABILITY
•MULTI PLATED BRASS, SILVER
  PALLADIUM, GOLD CONTACTS
  SUITABLE FOR LOGIC LEVEL
  SWITCHING TO 2A

HUBA
604 Series Differential Pressure Switch
Switch Points From 0.05” w.c. to 4.0 “ w.c.

DESCRIPTION
The 604 differential pressure switch is typically used for system interlock and alarm in ventilation ducts for monitoring of filter and fan pressures. They are also used to protect heating coils from overheating and for monitoring liquid level, laboratory and clean room pressures, fume hood and paint spray booth pressures and other commercial and industrial differential pressure relationships.

They are for use with air and non-corrosive gases.


1) Mounting Bracket
2) Diaphragm
3) P1 Connection of Higher Pressure
or Lower Vacuum
4) P2 Connection of Lower Pressure
or Higher Vacuum
5) Scale (Switch Point Setting)

SPECIFICATIONS
Pressure ranges: See order code selection table.
Overpressure: 20.0 inches w.c. at medium and
       ambient temperature -22 to 185 °F
       (-30 to +85 °C)
Overpressure: 30 inches w.c. at medium and ambient
       temperature -22 to 167 °F (-30 to +75 °C)
Storage temperature: -40 to 185 °F (-40 to +85 °C)
Dead Band: Factory set
Lowest Actuation Pressure: 0.8 inches w.c.
Repeatability:
       In the range 0.1 to 1.2 inches w.c. < +/- 0.01
           inches w.c.
       In the ranges 0.4 to 4.0 inches w.c.< +/- 0.02
           inches w.c.
Case construction, Main case: fiberglass-reinforced
                                                plastic
Cover: plastic
Weight: 120 grams without bracket, 144 grams with
           bracket type C
Installation Orientation: Standard diaphragm
       vertical (factory calibration). When the
       switch is rotated to horizontal the switching
       points will change by 0.044 inches w.c.
       (higher when cover is up, lower when cover
       is down)
 
Pressure Connections: Tubing Connector for
       3/16 ID Tubes 
Diaphragm: Silicone LSR, Tempered 392 °F
       (200 °C), free of gas emissions
Electrical connections: Screw terminals
Cable gland: Pg 11 with cable strain relief
Standard Contact: Changeover switch (SPDT)
Option : N/O contact
Contact: Multi-layer contact (suitable for DDC)
       5 A 250 VAC, resistive
       2 A 30 VDC, resistive
Approval Marking: ETL & cETL Listed
Test Standards: UL Std 1054 Fith edition and
       CSA C22.2 No. 55-M1986
EU conformity:
       Low voltage directive 73/23/EWG
       Gas appliance directive 90/396/EWG
       CE 0085 A P0918
Protection class:IP 00 without cover,
       IP 54 with cover 
Service life: Mechanical, > 106 switching cycles                                    
 
1) Mounting Bracket Types A, B, C
2) Mounting Clip
3) Plastic Duct Mount Static Tips
 
DIMENSIONS (MM) & ELECTRICAL
   
   
   
   
ORDERING INFORMATION
FOR YOUR CONVENIENCE, THESE ITEMS ARE AVAILABLE ONLINE
Model Range Max Pressure
604.E020030 0.08-1.2 inches w.c. 20.0 inches w.c.
604.E220030 0.4-4.0 inches w.c. 20.0 inches w.c.
 
Accessories & Options:
104262:  Plastic Static Pressure Probe (See Figure 1 Above)
100064:  Connection set including two static probes, 6ft of tubing
100295:  Type A mounting bracket
100098:  Type B mounting bracket
100106:  Type C mounting bracket
102976:  Bracket mounting screw (use three per bracket)
100294:  Fastening clip
Bold Order Items Typically Ship From Stock

Qty:

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PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS
Model Range Max Pressure
604.E020030 0.08-1.2 inches w.c. 20.0 inches w.c.
604.E220030 0.4-4.0 inches w.c. 20.0 inches w.c.
 
Accessories & Options:
Ranges to 20.0 inches w.c.:  Consult Factory
Special Deadband Setting:  Consult Factory
104262:  Plastic Static Pressure Probe (See Figure 1 Above)
100064:  Connection set including two static probes, 6ft of tubing
A0012:  1/2 ? NPT Adapter to replace strain relief connector with conduit
100295:  Type A mounting bracket
100098:  Type B mounting bracket
100106:  Type C mounting bracket
102976:  Bracket mounting screw (use three per bracket)
100294:  Fastening clip
Bold Order Items Typically Ship From Stock
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