Model: 439-89

Thermostatic Switch

Properties:

Overall Length
3.766 inches
Overall Height
0.345 inches
Overall Width
0.750 inches
Body Length
0.766 inches
Tempurature Sensing Element Type
Internal sensor
Operating Tempurature Rating
90.0 degrees celsius and -65.0 degrees celsius
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
Wire lead
Contact Load Current Rating
5.0 amperes resistive load single voltage
Contact Adjustability
Deactuation point not adjustable and actuation point not adjustable
Contact Stimulus Rating
39.00 actuation point degrees celsius and 25.00 deactuation point degrees celsius and 14.00 differential point degrees celsius
Contact Voltage Rating In Volts
28.0 dc at sea level single voltage
Media For Which Designed
Gas or liquid
Style Designator
Rectangular
NSN
5930-00-642-9750
Part Number
439-89
Description
Switch,thermostatic
CAGE
04217

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 439-89 NSN 5930-00-642-9750

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:
CRITL:
X

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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