Dwyer Bourdon Tube Pressure Switch, Series DA/DS
Images are representations only.

DA-21-3-9S

Series: Series DA/DS Bourdon Tube Pressure Switch Brand: Dwyer Instruments, LLC
Price
$2,115.00 CAD
Stock
25+ In Stock
Request Information

  • Deadband - Adjustable
  • Enclosure - General-Purpose
  • Agency Approvals - No Additional Approvals
  • Switch Type - Mercury Switch
  • Bourdon Tube Material - 403 Stainless Steel
  • Output - SPST Mercury Switch - Closes on Pressure Increase
  • Pressure Range - psig: 10 to 300 (bar: 0.689 to 20.68, kPa: 68.95 to 2,068)

Specifications

Brand

Adjustment Type

  • Thumbscrew

Approvals & Certifications

  • CE
  • CSA
  • FM
  • UL

Electrical Connectors

  • 1/2" Conduit
  • 3/4" NPT Female
  • Screw Terminal

Electrical Rating

  • Adjustable Deadband SPDT: 10 A at 120/240 Vac
  • Fixed Deadband 15 A at 120/240 Vac
  • Hermetically Sealed, Fixed Deadband SPDT: 5 A at 120/240 Vac Resistive
  • Hermetically Sealed, Fixed Deadband SPDT: 5 A at 30 Vdc

Environmental Protection

  • Explosion-proof
  • General-purpose
  • NEMA 7
  • NEMA 9
  • NEMA 9A
  • Weatherproof

NPT Connection

  • Explosion-proof: 1/4" NPT Female
  • Weatherproof: 1/2"Male NPT on Ranges 15S & 16S
  • Weatherproof: 1/4" NPT Male

Repeatability

  • ± 1 % of Full Operating Range
  • ± 1.5 % on DS-7300 Models

Sensor Orientation

  • Vertical

Set Point - Decreasing

  • bar: 0 to 552
  • inHg: -30 to 0
  • kPa: 0 to 55,200
  • psi: 0 to 8,000

Set Point - Increasing

  • bar: 0 to 552
  • inHg: -30 to 0
  • kPa: 0 to 55,200
  • psi: 0 to 8,000

Switch Type

  • SPDT (Mercury Switch, Snap Switch, SPDT Hermetically Sealed Snap Switch)
  • SPST Mercury Switch

System Pressure

  • bar: 550
  • kPa: 55,000
  • psig: up to 8,000 for Select Models

Temperature Range

  • 82° to (180° F)

Wetted Materials

  • 316 Stainless Steel
  • 403 Stainless Steel
  • Brass

Documentation

Approvals

Brochure

Catalogs

Manuals

View Product Series

Similar SKUs

DA-21-2-9S
DA-21-2-9S
Series DA/DS Bourdon Tube Pressure Switch
Dwyer Instruments
$137.00 CAD
25+ In Stock
DA-7221-3-9S
DA-7221-3-9S
Series DA/DS Bourdon Tube Pressure Switch
Dwyer Instruments
$1,968.00 CAD
100+ In Stock
DA-7021-3-9S
DA-7021-3-9S
Series DA/DS Bourdon Tube Pressure Switch
Dwyer Instruments
$976.00 CAD
25+ In Stock
DAF-21-3-9S
DAF-21-3-9S
Series DA/DS Bourdon Tube Pressure Switch
Dwyer Instruments
$2,037.00 CAD
50+ In Stock
DA-7321-3-9S
DA-7321-3-9S
Series DA/DS Bourdon Tube Pressure Switch
Dwyer Instruments
$2,231.00 CAD
21 In Stock
DS-21-3-9S
DS-21-3-9S
Series DA/DS Bourdon Tube Pressure Switch
Dwyer Instruments
$1,803.00 CAD
25+ In Stock
DSF-21-3-9S
DSF-21-3-9S
Series DA/DS Bourdon Tube Pressure Switch
Dwyer Instruments
$499.00 CAD
50+ In Stock
DAHF-21-3-9S
DAHF-21-3-9S
Series DA/DS Bourdon Tube Pressure Switch
Dwyer Instruments
$2,141.00 CAD
100+ In Stock
show more