Model: 840A52

Pressure-thermostatic Switch

Properties:

Inside Diameter
0.337 inches single connection
Overall Length
7.913 inches
Overall Height
3.110 inches
Overall Width
2.047 inches
Body Height
4.763 inches
Bulb Length
1.968 inches
Bulb Diameter
0.786 inches
End Application
2815-99-739-4949 engine, diesel paxman model 16rp200m aboard 110 ft class coast guard vessels
Pressure Switch Type
Gage
Tempurature Sensing Element Type
Bulb
Mounting Method
Immersion well
Features Provided
Electrical access port
Contact Action Stimulus
Decrease
Proof Pressure
1500.00 pounds per square inch
Nonpile-up Contact Arrangement
2 pole, double throw, two positions momentary
Terminal Type
Screw
Contact Load Current Rating
15.0 amperes resistive load second voltage
Contact Load Current Rating
5.0 amperes resistive load first voltage
Contact Adjustability
Actuation point adjustable
Contact Adjustment Range
+3.00/+54.00 actuation point pounds per square inch
Contact Adjustment Type
Internal actuation point shaft with scale
Contact Voltage Rating In Volts
30.0 dc at sea level first voltage
Contact Voltage Rating In Volts
480.0 ac at sea level second voltage
Pressure Connector Type
Plain, threaded internal single connection
Frequency In Hertz
60.0 second voltage
Media For Which Designed
Liquid
Style Designator
Rectangular
NSN
5930-01-233-9505
Part Number
840A52
Description
Switch,pressure-thermostatic
CAGE
K8098

A switch which is actuated by changes of pressure (vacuum) on any gas or liquid and by changes in ambient temperature. The contacts for the temperature and pressure sensitive elements may be common.

Part 840A52 NSN 5930-01-233-9505

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13383
FIIG:
A048B0
Concept No.:
1
App. Key:
E
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:
A
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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