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Technical Data Sheet
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B1946 — RELAY,THERMAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B1946: RELAY,THERMAL.

The RELAY,THERMAL is a the manufacturer industrial component. Key specifications include overall_length: 3.250 INCHES NOMINAL IN, overall_diameter: 1.275 INCHES NOMINAL IN, contact_arrangement: SINGLE POLE, SINGLE THROW, NORMALLY OPEN, delay_time_in_seconds: 2.0 FIXED OPERATE NOMINAL, environmental_protection: HERMETIC, heater_power_rating_in_watts: 5.0. This part is cataloged in the U.S.

Government catalog under NSN 5945-00-295-4869, 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
B1946
NSN: 5945-00-295-4869
FSC: 5945 — Relays and Solenoids
CAGE: 58880 — MEGGITT (NEW HAMPSHIRE), INC (USA)
SPECIFICATIONS
overall_length3.250 INCHES NOMINAL IN
overall_diameter1.275 INCHES NOMINAL IN
contact_arrangementSINGLE POLE, SINGLE THROW, NORMALLY OPEN
delay_time_in_seconds2.0 FIXED OPERATE NOMINAL
environmental_protectionHERMETIC
heater_power_rating_in_watts5.0
mounting_facility_type_and_quantity1 OCTAL BASE PLUG-IN
contact_maximum_current_rating_in_amps3.0 AC
NSN5945-00-295-4869
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,THERMAL TITLE COMPONENT PN B1946 MFR RELAY,THERMAL
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 OCTAL BASE PLUG-IN
•
CONTACT MAXIMUM VOLTAGE RATING IN VOLTS: 250.0 AC
•
DELAY TIME IN SECONDS: 2.0 FIXED OPERATE NOMINAL
•
CONTACT ARRANGEMENT: SINGLE POLE, SINGLE THROW, NORMALLY OPEN
•
OVERALL DIAMETER: 1.275 INCHES NOMINAL IN
•
HEATER POWER RATING IN WATTS: 5.0
•
HEATER VOLTAGE RATING IN VOLTS: 6.3
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY1 OCTAL BASE PLUG-IN
CONTACT MAXIMUM VOLTAGE RATING IN VOLTS250.0 AC
DELAY TIME IN SECONDS2.0 FIXED OPERATE NOMINAL
CONTACT ARRANGEMENTSINGLE POLE, SINGLE THROW, NORMALLY OPEN
OVERALL DIAMETER1.275 INCHES NOMINAL IN
HEATER POWER RATING IN WATTS5.0
HEATER VOLTAGE RATING IN VOLTS6.3
OVERALL LENGTH3.250 INCHES NOMINAL IN
CONTACT MAXIMUM CURRENT RATING IN AMPS3.0 AC
ENVIRONMENTAL PROTECTIONHERMETIC
SUBSTITUTES & CROSS-REFERENCES 1
53459Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B1946?
B1946 is a RELAY,THERMAL.
What parts can replace B1946?
There is 1 known substitute for B1946: 53459. Substitute compatibility should be verified for your specific system.
What is the NSN for B1946?
B1946 is cataloged in the U.S. Government catalog under NSN 5945-00-295-4869. This indicates validated use in U.S. government and defense supply chains.
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