TRM3221

Thermostatic Switch

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).

3.312 inches nominal overall length, 3.406 inches nominal overall height, 2.781 inches nominal overall width, 72.000 inches nominal capillary tube length, 4.000 inches nominal bulb length

Basic Details

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5930-00-349-7017

00-349-7017

Thermostatic Switch

TRM3221

Active

5930 - Switches

Electrical and Electronic Equipment Components

01/01/1961 (65 years ago)

00451

Technical Specifications

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Overall Length
3.312 inches nominal
Overall Height
3.406 inches nominal
Overall Width
2.781 inches nominal
Capillary Tube Length
72.000 inches nominal
Bulb Length
4.000 inches nominal
Bulb Diameter
0.875 inches nominal
Temp Sensing Element Type
capillary tube-bulb
Mounting Method
bracket
Contact Action Stimulus
increase
Nonpile-Up Contact Arrangement
2 pole, single throw, normally closed, momentary action
Terminal Type
screw
Contact Load Current Rating
4.6 amperes resistive load first voltage
Contact Load Current Rating
520.0 milliamperes resistive load third voltage
Contact Load Current Rating
1.0 amperes resistive load second voltage
Contact Adjustability
actuation point adjustable, preset
Contact Adjustment Range
+50.00 to 250.00 actuation point degrees fahrenheit
Contact Adjustment Type
external actuation point knob
Contact Stimulus Rating
2.00 differential point nominal degrees fahrenheit
Contact Voltage Rating In Volts
120.0 dc at sea level second voltage
Contact Voltage Rating In Volts
240.0 ac at sea level first voltage
Contact Voltage Rating In Volts
240.0 dc at sea level third voltage
Special Features
two mtg holes one 0.200 in. dia one 0.375 in. lg by 0.200 in. w 0.750 c to c

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Cross Referenced Parts

Our Cross-Referenced Parts section helps you quickly locate compatible or equivalent aerospace electrical components for: TRM3221

Part Number CAGE Manufacturer RNCC RNVC RNAAC
TRM3221 50306 Federal Equipment and Manufacturing Co., Inc. Div Federal Equipment & Manufacturing Co., Inc. 5 9 XX
TRM3221 50992 Ranco Inc Ranco Controls Div 3 2 XX
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