Model: 4391-8-78

Thermostatic Switch

Properties:

Overall Length
Between 1.812 inches and 1.875 inches
Overall Height
1.047 inches
Body Diameter
Between 1.094 inches and 1.156 inches
Body Height
Between 0.656 inches and 0.719 inches
Unthreaded Mounting Hole Diameter
Between 0.165 inches and 0.175 inches
Distance Between Mounting Facility Centers
Between 1.438 inches and 1.500 inches
Tempurature Sensing Element Type
Internal sensor
Mounting Method
Bracket and unthreaded hole
Features Provided
Hermetically sealed case
Contact Action Stimulus
Increase
Mounting Facility Pattern
Two position in-line
Nonpile-up Contact Arrangement
1 pole, single throw, normally closed, momentary action
Terminal Type
Tab, solder lug
Contact Load Current Rating
10.0 amperes resistive load first voltage
Contact Load Current Rating
10.0 amperes resistive load third voltage
Contact Load Current Rating
8.0 amperes resistive load second voltage
Contact Adjustability
Actuation point not adjustable and deactuation point not adjustable
Contact Stimulus Rating
104.00 actuation point degrees fahrenheit and 116.00 actuation point degrees fahrenheit and 94.00 deactuation point degrees fahrenheit and 106.00 deactuation point degrees fahrenheit
Contact Voltage Rating In Volts
125.0 ac at sea level first voltage
Contact Voltage Rating In Volts
250.0 ac at sea level second voltage
Contact Voltage Rating In Volts
30.0 dc at sea level third voltage
Media For Which Designed
Gas or liquid
Precious Material And Location
Contacts silver
Precious Material
Silver
Style Designator
Disc w/flange
NSN
5930-00-675-9604
Part Number
4391-8-78
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 4391-8-78 NSN 5930-00-675-9604

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:
S
ESD:
ESD:
MMAC:
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:
--
WCC:
723
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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