Model: 288A (O-20PSI)

Pressure Switch

Special Features:

Square root scale, 0-25 gpm, graduations at 5 gpm intervals, 6 in. Diameter dial

Properties:

Hazardous Locations/environmental Protection
Weatherproof
Overall Length
Between 5.203 inches and 5.328 inches
Body Length
Between 4.344 inches and 4.438 inches
Overall Diameter
7.500 inches
Pressure Switch Type
Differential
Mounting Facility Circle Radius
3.500 inches
Mounting Method
Flange and threaded stud
Features Provided
Calibrated scale
Thready Qty Per Inch (tpi)
20 single pressure connection
Proof Pressure
500.00 pounds per square inch
Thread Size
0.250 inches single pressure connection
Mounting Facility Pattern
Four position circular
Nonpile-up Contact Arrangement
2 pole, double throw, both positions maintained
Terminal Type
Screw
Contact Load Current Rating
2.5 amperes resistive load first voltage
Contact Load Current Rating
200.0 milliamperes resistive load third voltage and 100.0 milliamperes inductive load third voltage
Contact Load Current Rating
4.0 amperes resistive load fourth voltage and 2.5 amperes inductive load fourth voltage
Contact Load Current Rating
5.0 amperes resistive load second voltage
Contact Adjustability
Actuation point adjustable
Contact Adjustment Range
+0.00/+50.00 actuation point inches of water
Contact Adjustment Type
External actuation point screw with scale
Contact Voltage Rating In Volts
125.0 dc at sea level third voltage
Contact Voltage Rating In Volts
125.0 ac at sea level second voltage
Contact Voltage Rating In Volts
240.0 ac at sea level first voltage
Contact Voltage Rating In Volts
30.0 dc at sea level fourth voltage
Thread Series Designator
Unc single pressure connection
NSN
5930-01-047-7018
Part Number
288A (O-20PSI)
Description
Switch,pressure
CAGE
05991

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 288A (O-20PSI) NSN 5930-01-047-7018

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
11.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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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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