• Adjustable Set Point Range:
    • Increasing: 1 to 75 psid, 6.9 to 517.1 kPa, 0.069 to 5.17 bar
    • Decreasing: 0.4 to 71 psid, 2.7 to 489.5 kPa, 0.02 to 4.9 bar
  • Deadband: Approximately 0.6 to 4 psi, 4.13 to 27.5 kPa, 0.042 to 0.28 bar
  • System Pressure (Maximum): 400 psig, 2757.90 kPa, 28 bar
  • Proof Pressure:
    • Both Ports: 750 psig, 5171.07 kPa, 52 bar
    • High: 750 psig, 5171.07 kPa, 52 bar
    • Low: 400 psig, 2757.90 kPa, 28 bar
  • Wetted Materials:
    • Pressure Port: 1/4"-18 FNPT Aluminum
    • Diaphragm: Polyimide
    • O-Ring: Viton
  • Relay: SPDT or DPDT
  • UL, CRN, CE Mark, General Purpose
The above description encapsulates the entire product series. Specifications for individual configurations may vary depending on the selection chosen.
read more...

6 Models In Stock

604D1
604D1
$221.00
  • Base Model
  • psig
    • Increasing 1 to 18
    • Decreasing 0.4 to 17.4
  • kPa
    • Increasing 6.9 to 124.1
    • Decreasing 2.7 to 119.9
  • bar
    • Increasing 0.069 to 1.24
    • Decreasing 0.02 to 1.2
  • Base Model

    604D1
  • Process Connection

    1/4"-18 Female NPT Aluminum
  • O-Ring

    Viton
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CE, CRN
604D2
604D2
$221.00
  • Base Model
  • psig
    • Increasing 6 to 75
    • Decreasing 2 to 71
  • kPa
    • Increasing 41.4 to 517.1
    • Decreasing 13.8 to 489.6
  • bar
    • Increasing 0.42 to 5.17
    • Decreasing 0.14 to 4.9
  • Base Model

    604D2
  • Process Connection

    1/4"-18 Female NPT Aluminum
  • O-Ring

    Viton
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CE, CRN
604DJ1
604DJ1
$229.00
  • CSA (J)
  • psig
    • Increasing 1 to 18
    • Decreasing 0.4 to 17.4
  • kPa
    • Increasing 6.9 to 124.1
    • Decreasing 2.7 to 119.9
  • bar
    • Increasing 0.069 to 1.24
    • Decreasing 0.02 to 1.2
  • Base Model

    604D1
  • Process Connection

    1/4"-18 Female NPT Aluminum
  • O-Ring

    Viton
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    CSA
604DJ2
604DJ2
$229.00
  • CSA (J)
  • psig
    • Increasing 6 to 75
    • Decreasing 2 to 71
  • kPa
    • Increasing 41.4 to 517.1
    • Decreasing 13.8 to 489.6
  • bar
    • Increasing 0.42 to 5.17
    • Decreasing 0.14 to 4.9
  • Base Model

    604D2
  • Process Connection

    1/4"-18 Female NPT Aluminum
  • O-Ring

    Viton
  • Output

    SPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    CSA
604DM1
604DM1
$277.00
  • DPDT Electrical (M)
  • psig
    • Increasing 1 to 18
    • Decreasing 0.4 to 17.4
  • kPa
    • Increasing 6.9 to 124.1
    • Decreasing 2.7 to 119.9
  • bar
    • Increasing 0.069 to 1.24
    • Decreasing 0.02 to 1.2
  • Base Model

    604D1
  • Process Connection

    1/4"-18 Female NPT Aluminum
  • O-Ring

    Viton
  • Output

    DPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CE, CRN
604DM2
604DM2
$277.00
  • DPDT Electrical (M)
  • psig
    • Increasing 6 to 75
    • Decreasing 2 to 71
  • kPa
    • Increasing 41.4 to 517.1
    • Decreasing 13.8 to 489.6
  • bar
    • Increasing 0.42 to 5.17
    • Decreasing 0.14 to 4.9
  • Base Model

    604D2
  • Process Connection

    1/4"-18 Female NPT Aluminum
  • O-Ring

    Viton
  • Output

    DPDT
  • Electrical Contacts

    Silver
  • Agency Approvals

    UL, CE, CRN

Selected Configuration

Model #:

604D1

Price:
$221.00 USD
Availability:
In Stock (50+)
Min. Qty:
5 Items

Configuration

reset configuration

Agency Approvals

Available agency approvals listed below, CSA is a non standard option.
  • CE
  • CRN - Alberta
  • CRN - British Columbia
  • CRN - Manitoba
  • CRN - N.W. Territories
  • CRN - Saskatchewan
  • CSA
  • cUL
  • EMC Directive
  • LVD
  • PED
  • RoHS
  • UL

NACE & NIST

  • NACE

Set Point - Increasing

Set Point Ranges below describe the adjustable increasing range of the entire series, for specific ranges by model click desired unit of measurement below.
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psi
Proof (Test)
Pressure

psi
Adjustable
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure

psi
Decreasing
Pressure

psi
Model
604D*
Wetted
Parts
High Low High Low
400 750 750 400 1 - 18 0.4 - 17.4 0.6 D1 Aluminum
Polyimide
Viton
400 750 750 400 6 - 75 2 - 71 4 D2
400 750 750 400 1.4 - 18 0.5 - 17.1 0.9 DM1
400 750 750 400 6 - 75 2 - 71 4 DM2
  
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
kPa
Proof (Test)
Pressure
 
kPa
Adjustable
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure
 
kPa
Decreasing
Pressure
 
kPa
Model
604D*
Wetted
Parts
 High Low  High Low
2800 5200 5200 2800 6.9 - 124 2.0 - 120 4.2 D1 Aluminum
Polyimide
Viton
2800 5200 5200 2800 42 - 517 14 - 490 28 D2
2800 5200 5200 2800 9.7 - 124 3.4 - 118 6.2 DM1
2800 5200 5200 2800 42 - 517 14 - 490 28 DM2
  
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
bar
Proof (Test)
Pressure
 
bar
Adjustable
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure
 
bar
Decreasing
Pressure
 
bar
Model
604D*
Wetted
Parts
High Low High Low
28 52 52 28 0.069 - 1.24 0.02 - 1.2 0.042 D1 Aluminum
Polyimide
Viton
28 52 52 28 0.42 - 5.17 0.14 - 4.9 0.28 D2
28 52 52 28 0.097 - 1.24 0.034 - 1.18 0.062 DM1
28 52 52 28 0.42 - 5.17 0.14 - 4.9 0.28 DM2
  
  • bar: 0.069 to 5.17
  • kPa: 6.89 to 517.11
  • psid: 1 to 75

Set Point - Decreasing

Set Point Ranges below describe the adjustable decreasing range of the entire series, for specific ranges by model click desired unit of measurement below.
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psi
Proof (Test)
Pressure

psi
Adjustable
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure

psi
Decreasing
Pressure

psi
Model
604D*
Wetted
Parts
High Low High Low
400 750 750 400 1 - 18 0.4 - 17.4 0.6 D1 Aluminum
Polyimide
Viton
400 750 750 400 6 - 75 2 - 71 4 D2
400 750 750 400 1.4 - 18 0.5 - 17.1 0.9 DM1
400 750 750 400 6 - 75 2 - 71 4 DM2
  
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
kPa
Proof (Test)
Pressure
 
kPa
Adjustable
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure
 
kPa
Decreasing
Pressure
 
kPa
Model
604D*
Wetted
Parts
 High Low  High Low
2800 5200 5200 2800 6.9 - 124 2.0 - 120 4.2 D1 Aluminum
Polyimide
Viton
2800 5200 5200 2800 42 - 517 14 - 490 28 D2
2800 5200 5200 2800 9.7 - 124 3.4 - 118 6.2 DM1
2800 5200 5200 2800 42 - 517 14 - 490 28 DM2
  
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
bar
Proof (Test)
Pressure
 
bar
Adjustable
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure
 
bar
Decreasing
Pressure
 
bar
Model
604D*
Wetted
Parts
High Low High Low
28 52 52 28 0.069 - 1.24 0.02 - 1.2 0.042 D1 Aluminum
Polyimide
Viton
28 52 52 28 0.42 - 5.17 0.14 - 4.9 0.28 D2
28 52 52 28 0.097 - 1.24 0.034 - 1.18 0.062 DM1
28 52 52 28 0.42 - 5.17 0.14 - 4.9 0.28 DM2
  
  • bar: 0.02 to 4.9
  • kPa: 2 to 489.5
  • psid: 0.4 to 71

Adjustment Type

  • Field Adjustable

System Pressure

System Pressure below describes the range of the entire series.
  • bar: 28
  • kPa: 2,758
  • psig: 400

Proof Pressure - Both Ports

Below describes the proof pressure - both ports range of the entire series.
  • bar: 52
  • kPa: 5,171
  • psig: 750

Proof Pressure - Low Over High

Below describes the proof pressure - low over high range of the entire series.
  • bar: 28
  • kPa: 2,758
  • psig: 400

Proof Pressure - High Over Low

Below describes the proof pressure - high over low range of the entire series.
  • bar: 52
  • kPa: 5,171
  • psig: 750

Operating Temperature

  • -40° to 86° C (-40° to 187° F)

Deadband, Approximate

Deadband below describes the approximate deadband range of the entire series, for specific values by model click desired unit of measurement below.
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure

psi
Proof (Test)
Pressure

psi
Adjustable
Set Point Range
Deadband
Approximate
psi
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure

psi
Decreasing
Pressure

psi
Model
604D*
Wetted
Parts
High Low High Low
400 750 750 400 1 - 18 0.4 - 17.4 0.6 D1 Aluminum
Polyimide
Viton
400 750 750 400 6 - 75 2 - 71 4 D2
400 750 750 400 1.4 - 18 0.5 - 17.1 0.9 DM1
400 750 750 400 6 - 75 2 - 71 4 DM2
  
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
kPa
Proof (Test)
Pressure
 
kPa
Adjustable
Set Point Range
Deadband
Approximate
kPa
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure
 
kPa
Decreasing
Pressure
 
kPa
Model
604D*
Wetted
Parts
 High Low  High Low
2800 5200 5200 2800 6.9 - 124 2.0 - 120 4.2 D1 Aluminum
Polyimide
Viton
2800 5200 5200 2800 42 - 517 14 - 490 28 D2
2800 5200 5200 2800 9.7 - 124 3.4 - 118 6.2 DM1
2800 5200 5200 2800 42 - 517 14 - 490 28 DM2
  
Operating & Ordering Data:
MODEL 604D 1/4" Aluminum Pressure Port & Polyimide Diaphragm
Maximum
System
Pressure
 
bar
Proof (Test)
Pressure
 
bar
Adjustable
Set Point Range
Deadband
Approximate
bar
Model Number &
 Wetted Parts
Both
Ports
 Simult.
High over Low
Low over High
Increasing
Pressure
 
bar
Decreasing
Pressure
 
bar
Model
604D*
Wetted
Parts
High Low High Low
28 52 52 28 0.069 - 1.24 0.02 - 1.2 0.042 D1 Aluminum
Polyimide
Viton
28 52 52 28 0.42 - 5.17 0.14 - 4.9 0.28 D2
28 52 52 28 0.097 - 1.24 0.034 - 1.18 0.062 DM1
28 52 52 28 0.42 - 5.17 0.14 - 4.9 0.28 DM2
  
  • bar: 0.042 to 0.28
  • kPa: 4.13 to 27.58
  • psig: 0.6 to 4

Process Connection - Threaded

  • 1/4" Female NPT

Environmental Protection

  • NEMA 4, 13 / IP65, 66
  • Non-Hazardous Area

Switch Type

  • DPDT
  • SPDT

Electrical Rating

Electrical Characteristics:
VOLTS AMPERES
SPDT DPDT "M" Dbl Brk"X"
Resistive Resistive Resistive
Silver Contacts
125 AC - 50/60 Hz 15 5 15
250 AC - 50/60 Hz 15 5 15
480 AC - 50/60 Hz 15 - 15
28 DC     6 5 -
125 DC     0.5 0.5 1
250 AC - 50/60 Hz 0.2 - 0.5
Gold Contacts
125 AC - 50/60 Hz 1 Max 1 Max -
30 DC     1 Max 1 Max -
SPDT (Single Pole Double Throw)
A SPDT switching element has one normally open, one normally closed and one common terminal. Three terminals mean that the switch can be wired with the circuit either normally open (N/O) or normally closed (N/C).

DPDT (Double Pole Double Throw)
A DPDT switching element has six electrical terminals. In simple terms, it is two SPDT switching elements operating simultaneously at the same settings. This type of switch can handle two independent circuits without using a relay.

Normally Closed Switching Element
A Normally Closed (NC) Switching Element is one in which the terminals are wired so that current can flow through the switching element until the plunger pin is actuated to open the circuit.
  • 1 A at 125 Vac, 50/60 Hz
  • 15 A at 125/250/480 Vac Resistive, 0.4 A at 125 DC, 0.2 A at 250 DC
  • 5 A at 125/250 Vac Resistive, 5 A at 28 Vdc, 0.5 A at 125 Vdc

Electrical Contacts

Available electrical contacts materials listed below, silver is standard.
  • Gold
  • Silver

Electrical Connectors

  • Terminal Strip - Internal

Enclosure/Body Material

  • Aluminum

Process Connection Material

  • Aluminum

O-Ring Material

Availble O-Ring Material is listed below, Viton is standard.
  • Ethylene Propylene
  • Viton

Diaphragm Material

  • Polyimide

Standard Features

  • Internal Case Ground
  • Weatherproof