Model: 21546-3-49-1

Thermostatic Switch

Properties:

Thread Class
3a single threaded bushing
Thread Length
0.394 inches single threaded bushing
Hazardous Locations/environmental Protection
Vibration resistant
Body Diameter
0.665 inches
Body Length
Between 1.440 inches and 1.560 inches
Tempurature Sensing Element Type
Bulb
Width Across Flats
Between 0.990 inches and 1.050 inches
Operating Tempurature Rating
233.0 degrees celsius and -54.0 degrees celsius
Mounting Method
Threaded bushing
Features Provided
Hermetically sealed case
Contact Action Stimulus
Decrease
Thread Size
0.750 inches single threaded bushing
Nonpile-up Contact Arrangement
1 pole, single throw, normally open, momentary action
Terminal Type
Connector, receptacle
Contact Load Current Rating
2.0 amperes resistive load first voltage
Contact Load Current Rating
3.0 amperes resistive load second voltage
Contact Adjustability
Actuation point not adjustable
Contact Stimulus Rating
24.90 actuation point degrees celsius and 28.30 actuation point degrees celsius and 1.10 differential point degrees celsius and 2.80 differential point degrees celsius
Contact Voltage Rating In Volts
120.0 ac at sea level first voltage
Contact Voltage Rating In Volts
30.0 dc at sea level second voltage
Media For Which Designed
Liquid
Style Designator
Cylindrical w/flange
Thread Series Designator
Unf single threaded bushing
NSN
5930-01-074-0885
Part Number
21546-3-49-1
Description
Switch,thermostatic
CAGE
82647

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 21546-3-49-1 NSN 5930-01-074-0885

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
3.0 X 2.0 X 2.0
Paclk Weight:
0.4000lbs
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:
77.5
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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