Model: DA521-2-8S

Pressure Switch

Special Features:

Steel bourdon tubes, motor 1 phase, 0.125 hp, magnetic sealed mercury contact

Properties:

Overall Length
7.250 inches
Overall Height
3.375 inches
Body Diameter
5.750 inches
Pressure Switch Type
Differential
Width Across Flats
0.563 inches
Mounting Method
Threaded hole
Contact Action Stimulus
Increase
Thread Size
0.250 inches single pressure connection
Mounting Facility Pattern
Isosceles triangle
Contact Load Current Rating
2.5 amperes resistive load first voltage
Contact Load Current Rating
5.0 amperes resistive load second voltage
Contact Adjustability
Deactuation point adjustable and actuation point adjustable
Contact Adjustment Range
+10.00/+200.00 actuation point pounds per square inch gage and +10.00/+200.00 deactuation point pounds per square inch gage
Contact Adjustment Type
Internal actuation point knob with scale and internal deactuation point knob with scale
Contact Stimulus Rating
4.00 differential point pounds per square inch gage
Contact Voltage Rating In Volts
120.0 ac at sea level second voltage
Contact Voltage Rating In Volts
240.0 ac at sea level first voltage
Pressure Connector Type
External seat-gasket seal, threaded external single connection
Media For Which Designed
Liquid
Style Designator
Cylindrical w/port
NSN
5930-00-629-0282
Part Number
DA521-2-8S
Description
Switch,pressure
CAGE
39709

A switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. Excludes baroswitch; switch, pressure-thermostatic; and switch, sensitive.

Part DA521-2-8S NSN 5930-00-629-0282

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00206
FIIG:
A048B0
Concept No.:
1
App. Key:
D
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8536509065
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, for a voltage not exceeding 1000 volts, nesoi

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