Model: 4B1N21D20AB

Thermostatic Switch

Properties:

Overall Length
5.188 inches
Overall Height
5.406 inches
Overall Width
2.812 inches
Body Height
2.750 inches
Unthreaded Mounting Hole Diameter
0.281 inches
Distance Between Mounting Facility Centers
5.250 inches
Capillary Tube Length
240.0 inches
Bulb Length
1.125 inches
Bulb Diameter
6.000 inches
Tempurature Sensing Element Type
Capillary tube-bulb
Mounting Method
Bracket and unthreaded hole
Features Provided
Electrical access port
Contact Action Stimulus
Increase
Mounting Facility Pattern
Two position in-line
Nonpile-up Contact Arrangement
1 pole, single throw, both positions maintained
Terminal Type
Screw
Contact Load Current Rating
15.0 amperes resistive load first voltage
Contact Load Current Rating
15.0 amperes resistive load second voltage
Contact Load Current Rating
15.0 amperes resistive load third voltage
Contact Load Current Rating
0.3 amperes resistive load fifth voltage
Contact Load Current Rating
0.5 amperes resistive load fourth voltage
Contact Adjustability
Actuation point adjustable
Contact Adjustment Range
-20.00/+100.00 actuation point degrees fahrenheit
Contact Adjustment Type
External actuation point screw
Contact Voltage Rating In Volts
115.0 ac at sea level first voltage
Contact Voltage Rating In Volts
115.0 dc at sea level third voltage
Contact Voltage Rating In Volts
230.0 ac at sea level second voltage
Contact Voltage Rating In Volts
230.0 dc at sea level fourth voltage
Contact Voltage Rating In Volts
480.0 dc at sea level fifth voltage
Media For Which Designed
Gas
Style Designator
Rectangular
NSN
5930-01-205-2632
Part Number
4B1N21D20AB
Description
Switch,thermostatic
CAGE
19278

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 4B1N21D20AB NSN 5930-01-205-2632

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:
--
Paclk Weight:
--
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:
063250
UFC:
34410
LTL:
RATING VARIABLE
LCL:
--
WCC:
72D
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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