Model: 271AP12NB-2503

Pressure Switch

Special Features:

High pressure cut-out (100 to 425 psig adjustable)

Properties:

Thread Class
2b single threaded hole
Overall Length
5.660 inches
Overall Height
4.350 inches
Body Height
3.400 inches
Unthreaded Mounting Hole Diameter
0.203 inches
Distance Between Mounting Facility Centers
4.980 inches
End Application
Centrifugal pump 60
Pressure Switch Type
Differential
Mounting Method
Threaded hole and unthreaded hole
Features Provided
Electrical access port and manual reset button
Thready Qty Per Inch (tpi)
18 all pressure connection
Contact Action Stimulus
Decrease
Thread Size
0.190 inches single threaded hole
Thread Size
0.250 inches all pressure connection
Mounting Facility Pattern
Two position in-line
Nonpile-up Contact Arrangement
1 pole, single throw, normally open, momentary action
Terminal Type
Screw
Contact Load Current Rating
17.0 amperes resistive load second voltage
Contact Load Current Rating
20.0 amperes resistive load first voltage
Contact Adjustability
Actuation point adjustable and deactuation point adjustable
Contact Adjustment Range
+9.82/+100.00 actuation point pounds per square inch gage
Contact Adjustment Type
Internal actuation point pointer with scale
Contact Voltage Rating In Volts
120.0 ac at sea level first voltage
Contact Voltage Rating In Volts
240.0 ac at sea level second voltage
Media For Which Designed
Liquid
Precious Material And Location
Contacts silver
Precious Material
Silver
Thread Series Designator
Nptf all pressure connection
Thread Series Designator
Unf single threaded hole
NSN
5930-01-200-7879
Part Number
271AP12NB-2503
Description
Switch,pressure
CAGE
92578

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 271AP12NB-2503 NSN 5930-01-200-7879

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:
S
ESD:
ESD:
MMAC:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
3.0000lbs
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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