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Technical Data Sheet
KR1277-1 ✓ 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: 1.370 INCHES NOMINAL IN, overall_height: 1.370 INCHES NOMINAL IN, overall_length: 2.500 INCHES NOMINAL IN, environmental_protection: FUNGUS PROOF, terminal_type_and_quantity: 8 PIN ALL FUNCTIONS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-239-2662, 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
KR1277-1
NSN: 5945-00-239-2662
FSC: 5945
CAGE: 77342 — TE CONNECTIVITY CORPORATION (USA)
SPECIFICATIONS
duty_typeCONTINUOUS
coil_quantity1
overall_width1.370 INCHES NOMINAL IN
overall_height1.370 INCHES NOMINAL IN
overall_length2.500 INCHES NOMINAL IN
winding_quantity1
environmental_protectionFUNGUS PROOF
terminal_type_and_quantity8 PIN ALL FUNCTIONS
winding_dc_resistance_rating2.5 KILOHMS NOMINAL SINGLE WINDING
mounting_facility_type_and_quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
nonpile-up_main_contact_arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
main_contact_maximum_voltage_rating_in_volts115.0 AC
NSN5945-00-239-2662
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN KR1277-1 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
WINDING DC RESISTANCE RATING: 2.5 KILOHMS NOMINAL SINGLE WINDING
DUTY TYPE: CONTINUOUS
MOUNTING FACILITY TYPE AND QUANTITY: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE: 3.0 AMPERES AC RESISTIVE LOAD
MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS: 115.0 AC
OPERATING VOLTAGE RATING AND TYPE AT SPECIFIED TEMP: 48.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
TERMINAL TYPE AND QUANTITY: 8 PIN ALL FUNCTIONS
TECHNICAL CHARACTERISTICS (FLIS)
WINDING DC RESISTANCE RATING2.5 KILOHMS NOMINAL SINGLE WINDING
DUTY TYPECONTINUOUS
MOUNTING FACILITY TYPE AND QUANTITY1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE3.0 AMPERES AC RESISTIVE LOAD
MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS115.0 AC
OPERATING VOLTAGE RATING AND TYPE AT SPECIFIED TEMP48.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
TERMINAL TYPE AND QUANTITY8 PIN ALL FUNCTIONS
OVERALL HEIGHT1.370 INCHES NOMINAL IN
OVERALL LENGTH2.500 INCHES NOMINAL IN
COIL QUANTITY1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MIL-C-22520Interchangeable
interchangeable cross-reference
interchangeable
M22520/1-08Interchangeable
interchangeable cross-reference
interchangeable
294-1722-02Interchangeable
interchangeable cross-reference
interchangeable
55108Interchangeable
interchangeable cross-reference
interchangeable
00044Interchangeable
interchangeable cross-reference
interchangeable
6223-66Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KR1277-1?
KR1277-1 is a RELAY,ELECTROMAGNETIC.
What parts can replace KR1277-1?
There are 8 known substitutes for KR1277-1: MIL-C-22520, M22520/1-08, 294-1722-02 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for KR1277-1?
KR1277-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-239-2662. This indicates validated use in U.S. government and defense supply chains.
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