4LCK45-N1-C1A

Pressure Switch

A switch which is actuated by changes in pressure of any gas or liquid or by changes in a vacuum acting upon its sensing element. Excludes:baroswitch; switch,pressure-thermostatic; and switch,sensitive.

4.610 inches nominal overall height, 7.600 inches nominal overall length, explosion proof hazardous locations/environmental protection, 5.790 inches nominal overall width, 0.250 inches nominal single connection inside diameter

Basic Details

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NSN

5930-01-154-0592

NIIN

01-154-0592

Item Name

Pressure Switch

Part Number

4LCK45-N1-C1A

Active

Federal Supply Class

5930 - Switches

Federal Supply Group

Electrical and Electronic Equipment Components

Assigment Date

05/19/1983 (42 years ago)

Item Name Code

00206

Technical Specifications

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Inside Diameter: 0.250 inches nominal single connection
Hazardous Locations/Environmental Protection: explosion proof
Overall Length: 7.600 inches nominal
Overall Height: 4.610 inches nominal
Overall Width: 5.790 inches nominal
Unthreaded Mounting Hole Diameter: 0.250 inches nominal
Longest Horizontal Distance Between Mounting Centers: 4.250 inches nominal
Longest Vertical Distance Between Mounting Centers: 4.250 inches nominal
Pressure Switch Type: gage
Operating Temp Rating: 180.0 fahrenheit maximum
Mounting Method: bracket and unthreaded hole
Features Provided: electrical access port
Contact Action Stimulus: increase
Proof Pressure: 1000.00 pounds per square inch
Nominal Thread Size: 0.250 inches single pressure connection
Mounting Facility Pattern: four position rectangular
Nonpile-Up Contact Arrangement: 1 pole, double throw, one position momentary
Terminal Type: screw
Contact Load Current Rating: 0.4 amperes resistive load third voltage
Contact Load Current Rating: 5.0 amperes resistive load second voltage
Contact Load Current Rating: 15.0 amperes resistive load first voltage
Contact Adjustability: actuation point adjustable
Contact Adjustment Range: +4.00 to 75.00 actuation point pounds per square inch
Contact Adjustment Type: internal actuation point hex nut
Contact Voltage Rating In Volts: 125.0 dc at sea level third voltage
Contact Voltage Rating In Volts: 250.0 ac at sea level first voltage
Contact Voltage Rating In Volts: 30.0 dc at sea level second voltage
Pressure Connector Type: plain, threaded internal single connection
Media For Which Designed: gas or liquid
Thread Series Designator: npt single pressure connection

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Cross Referenced Parts

Our Cross-Referenced Parts section helps you quickly locate compatible or equivalent aerospace electrical components for: 4LCK45-N1-C1A

Part Number	CAGE	Manufacturer	RNCC	RNVC	RNAAC
4L-K45-N1-C1A	34950	Sor Inc	C	1	ZZ
4LCK45-C1A-N1	34950	Sor Inc	C	1	ZZ
4LCK45-N1-C1A	34950	Sor Inc	3	9	TX
4LCK45-N1-C1A	3M874	Sor, Inc.	3	2	ZZ

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