1AQ4120 — RELAY,ELECTROMAGNETIC

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

1AQ4120: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include duty_type: CONTINUOUS, time_delay: 0.50 SECONDS MINIMUM AND 3.50 SECONDS MAXIMUM ADJUSTABLE RELEASE TIME, overall_width: 3.430 INCHES NOMINAL IN, overall_height: 5.280 INCHES NOMINAL IN, overall_length: 5.500 INCHES NOMINAL IN, winding_dc_resistance_rating: 1.1 KILOHMS MINIMUM FIRST WINDING. This part is cataloged in the U.S.

Government catalog under NSN 5945-00-252-0991, 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

1AQ4120

NSN: 5945-00-252-0991
FSC: 5945 — Relays and Solenoids
CAGE: 79500 — WESTINGHOUSE ELECTRIC CORP (USA)

SPECIFICATIONS

duty_type	CONTINUOUS
time_delay	0.50 SECONDS MINIMUM AND 3.50 SECONDS MAXIMUM ADJUSTABLE RELEASE TIME
coil_quantity	1
overall_width	3.430 INCHES NOMINAL IN
overall_height	5.280 INCHES NOMINAL IN
overall_length	5.500 INCHES NOMINAL IN
winding_quantity	2
winding_dc_resistance_rating	1.1 KILOHMS MINIMUM FIRST WINDING
nonpile-up_main_contact_arrangement	2 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
nonpile-up_auxiliary_contact_arrangement	1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
main_contact_maximum_voltage_rating_in_volts	125.0 DC
auxiliary_contact_maximum_voltage_rating_in_volts	125.0 DC
NSN	5945-00-252-0991

COMPONENT DIAGRAM

KEY FEATURES

•

NONPILE-UP AUXILIARY CONTACT ARRANGEMENT: 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION

•

MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS: 125.0 DC

•

MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE: 150.0 AMPERES DC RESISTIVE LOAD

•

DUTY TYPE: CONTINUOUS

•

WINDING DC RESISTANCE RATING: 1.1 KILOHMS MINIMUM FIRST WINDING

TECHNICAL CHARACTERISTICS

NONPILE-UP AUXILIARY CONTACT ARRANGEMENT	1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
OVERALL HEIGHT	5.280 INCHES NOMINAL IN
MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS	125.0 DC
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE	150.0 AMPERES DC RESISTIVE LOAD
DUTY TYPE	CONTINUOUS
OVERALL LENGTH	5.500 INCHES NOMINAL IN
OVERALL WIDTH	3.430 INCHES NOMINAL IN
WINDING DC RESISTANCE RATING	1.1 KILOHMS MINIMUM FIRST WINDING
WINDING DC RESISTANCE RATING	745.0 OHMS MAXIMUM SECOND WINDING
TIME DELAY	0.50 SECONDS MINIMUM AND 3.50 SECONDS MAXIMUM ADJUSTABLE RELEASE TIME

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 2

37J890REV8Reference document

Same NSN cross-reference

Reference document — Secondary reference

37J890Reference 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 1AQ4120?

1AQ4120 is a RELAY,ELECTROMAGNETIC.

What parts can replace 1AQ4120?

There are 2 known substitutes for 1AQ4120: 37J890REV8, 37J890. Substitute compatibility should be verified for your specific system.

What is the NSN for 1AQ4120?

1AQ4120 is cataloged in the U.S. Government catalog under NSN 5945-00-252-0991. This indicates validated use in U.S. government and defense supply chains.

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1AQ4120 — RELAY,ELECTROMAGNETIC

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