Model: A28AA-4

Thermostatic Switch

Properties:

Overall Height
2.250 inches
Overall Width
2.141 inches
Body Length
4.391 inches
Unthreaded Mounting Hole Diameter
0.280 inches
Longest Horizontal Distance Between Mounting Centers
1.562 inches
Longest Vertical Distance Between Mounting Centers
2.938 inches
Tempurature Sensing Element Type
Internal sensor
Operating Tempurature Rating
Between -30.0 degrees fahrenheit and 140.0 degrees fahrenheit
Mounting Method
Unthreaded hole
Contact Action Stimulus
Increase
Mounting Facility Pattern
Four position rectangular
Nonpile-up Contact Arrangement
1 pole, double throw, one position momentary
Terminal Type
Screw
Contact Load Current Rating
16.0 amperes resistive load first voltage
Contact Load Current Rating
8.0 amperes resistive load second voltage
Contact Adjustability
Deactuation point adjustable and actuation point adjustable
Contact Adjustment Range
+30.00/+110.00 actuation point degrees fahrenheit and +26.00/+106.00 deactuation point degrees fahrenheit
Contact Adjustment Type
External deactuation point dial and external actuation point dial
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
Gas or liquid
NSN
5930-01-043-5891
Part Number
A28AA-4
Description
Switch,thermostatic
CAGE
92578

A switch that is actuated by changes in ambient temperature. Excludes circuit breaker; control, temperature (as modified); fuse (as modified); protector, thermal-overload, electrical motor; relay, thermal; and thermostat, flow control. See also control, temperature (as modified) and regulator, temperature (as modified).

Part A28AA-4 NSN 5930-01-043-5891

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00451
FIIG:
A048B0
Concept No.:
1
App. Key:
F
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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.0000lbs
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: 9032100000
  • SITC: 87461
  • End Use: Measuring, testing, control instruments
  • NAICS: 334512
  • USDA: 1

Freight Class: Thermostats

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