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Technical Data Sheet
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B2051 — RELAY,THERMAL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B2051: RELAY,THERMAL.

The RELAY,THERMAL is a the manufacturer industrial component. Key specifications include overall_length: 3.812 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, terminal_type_and_quantity: 4 PIN. This part is cataloged in the U.S.

Government catalog under NSN 5945-00-259-9259, 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
B2051
NSN: 5945-00-259-9259
FSC: 5945 — Relays and Solenoids
CAGE: 04435 — JETTRON PRODUCTS INC (USA)
SPECIFICATIONS
overall_length3.812 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
terminal_type_and_quantity4 PIN
heater_power_rating_in_watts5.0
mounting_facility_type_and_quantity1 OCTAL BASE PLUG-IN
contact_maximum_current_rating_in_amps3.0 AC OR 3.0 DC
NSN5945-00-259-9259
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,THERMAL TITLE COMPONENT PN B2051 MFR RELAY,THERMAL
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 OCTAL BASE PLUG-IN
•
CONTACT MAXIMUM VOLTAGE RATING IN VOLTS: 250.0 AC AND 150.0 DC
•
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: 26.5
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY1 OCTAL BASE PLUG-IN
CONTACT MAXIMUM VOLTAGE RATING IN VOLTS250.0 AC AND 150.0 DC
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 VOLTS26.5
OVERALL LENGTH3.812 INCHES NOMINAL IN
CONTACT MAXIMUM CURRENT RATING IN AMPS3.0 AC OR 3.0 DC
ENVIRONMENTAL PROTECTIONHERMETIC
OTHER ITEMS IN FSC 5945 — Relays and Solenoids
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5945-00-000-0093 5945-00-001-1891 5945-00-001-2622 5945-00-001-2795 5945-00-001-2806 5945-00-001-2938 5945-00-001-3015 5945-00-001-3016
SUBSTITUTES & CROSS-REFERENCES 1
VBE405-21Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B2051?
B2051 is a RELAY,THERMAL.
What parts can replace B2051?
There is 1 known substitute for B2051: VBE405-21. Substitute compatibility should be verified for your specific system.
What is the NSN for B2051?
B2051 is cataloged in the U.S. Government catalog under NSN 5945-00-259-9259. This indicates validated use in U.S. government and defense supply chains.
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