Model: 721857-21

Thermostatic Switch

Properties:

Overall Height
0.607 inches
Body Height
0.364 inches
Overall Diameter
0.640 inches
Tempurature Sensing Element Type
Internal sensor
Operating Tempurature Rating
Between -80.0 degrees fahrenheit and 550.0 degrees fahrenheit
Mounting Method
Clamp
Features Provided
Hermetically sealed case
Contact Action Stimulus
Increase
Nonpile-up Contact Arrangement
1 pole, single throw, normally closed, momentary action
Terminal Type
Tab, solder lug
Contact Load Current Rating
1.0 amperes resistive load first voltage
Contact Load Current Rating
5.0 amperes resistive load second voltage
Contact Load Current Rating
5.0 amperes resistive load third voltage
Contact Adjustability
Deactuation point not adjustable and actuation point not adjustable
Contact Voltage Rating In Volts
250.0 ac at sea level first voltage
Contact Voltage Rating In Volts
30.0 ac at sea level second voltage
Contact Voltage Rating In Volts
30.0 dc at sea level third voltage
Media For Which Designed
Gas
NSN
5930-01-135-3836
Part Number
721857-21
Description
Switch,thermostatic
CAGE
05869

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 721857-21 NSN 5930-01-135-3836

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:
EH
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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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