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Technical Data Sheet
400SX ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include duty_type: CONTINUOUS, overall_width: 3.500 INCHES NOMINAL IN, overall_height: 2.688 INCHES NOMINAL IN, overall_length: 3.876 INCHES NOMINAL IN, special_features: SCREW DROP-OUT TRIP ADJUSTMENT, frequency_in_hertz: 50.0 NOMINAL OR 400.0 NOMINAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-01-186-6194, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
400SX
NSN: 5945-01-186-6194
FSC: 5945
CAGE: 18741 — TE CONNECTIVITY CORPORATION (USA)
SPECIFICATIONS
duty_typeCONTINUOUS
coil_quantity1
overall_width3.500 INCHES NOMINAL IN
overall_height2.688 INCHES NOMINAL IN
overall_length3.876 INCHES NOMINAL IN
special_featuresSCREW DROP-OUT TRIP ADJUSTMENT
winding_quantity1
frequency_in_hertz50.0 NOMINAL OR 400.0 NOMINAL
environmental_protectionSHOCK RESISTANT AND HERMETIC
mounting_facility_patternRECTANGULAR SINGLE MOUNTING FACILITY
terminal_type_and_quantity6 THREADED STUD ALL FUNCTIONS
unthreaded_mounting_hole_diameter0.172 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
NSN5945-01-186-6194
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 400SX MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
FREQUENCY IN HERTZ: 50.0 NOMINAL OR 400.0 NOMINAL
MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS: 120.0 AC AND 30.0 DC
WINDING QUANTITY: 1
ENVIRONMENTAL PROTECTION: SHOCK RESISTANT AND HERMETIC
DUTY TYPE: CONTINUOUS
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH: 3.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH3.876 INCHES NOMINAL IN
SPECIAL FEATURESSCREW DROP-OUT TRIP ADJUSTMENT
FREQUENCY IN HERTZ50.0 NOMINAL OR 400.0 NOMINAL
MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS120.0 AC AND 30.0 DC
WINDING QUANTITY1
ENVIRONMENTAL PROTECTIONSHOCK RESISTANT AND HERMETIC
DUTY TYPECONTINUOUS
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH3.500 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
OVERALL WIDTH3.500 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER0.172 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
21578Interchangeable
interchangeable cross-reference
interchangeable
21578BInterchangeable
interchangeable cross-reference
interchangeable
477Interchangeable
interchangeable cross-reference
interchangeable
5209252Interchangeable
interchangeable cross-reference
interchangeable
21578-1Interchangeable
interchangeable cross-reference
interchangeable
5945PL0921435Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 400SX?
400SX is a RELAY,ELECTROMAGNETIC.
What parts can replace 400SX?
There are 6 known substitutes for 400SX: 21578, 21578B, 477 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 400SX?
400SX is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-01-186-6194. This indicates validated use in U.S. government and defense supply chains.
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