#520A302 Thermal Magnetic Trip Breaker | Circuit Breakers

520A302

Circuit Breaker

NSN 5925-00-615-7549

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
UOM:
NIIN:
006157549

Product Technical Spec.

Overall Length:
1.500 inches
Overall Height:
2.600 inches
Overall Width:
0.625 inches
Case Material:
Metal
Pole Quantity:
1
Arc Quenching Method:
Air
Mounting Facility Type And Quantity:
1 threaded bushing
Thready Qty Per Inch (tpi):
32
Maximum Continuous Load Current Rating Per Pole:
3.0 amperes ac single location
Operating Voltage Type And Rating Per Pole In Volts:
120.0 ac single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps:
500.0 ac single location
Circuit Protection Type:
Overcurrent single location
Trip Release Method:
Magnetic single location
Trip Release Characteristic:
Time delay single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent:
135.0 single location
Reset Method:
Manual
Main Contact Tripping Mechanism Type:
Trip free
Manual Actuator Type And Quantity:
1 toggle
Actuator Function:
Reset
Thread Size:
0.375 inches
Trip Delay Time In Seconds Per Rated Continuous Current:
0.140 at 200 pct single location and 0.700 at 200 pct single location and 0.010 at 400 pct single location and 0.150 at 400 pct single location
Inclosure Protection Type For Which Designed:
Hermetically sealed
Frequency In Hertz:
400.0 single location
Thread Series Designator:
Unef
Terminal Type And Quantity:
2 tab, solder lug
NSN:
5925-00-615-7549
Item Name:
Thermal Magnetic Trip Breaker
Cage Code:
81541

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
SWI377-23
Cage Code:
80249
RNCC:
3
RNVC:
2
RNAAC:
XX
Status:
A
MSDS:
SADC:
Part Number:
2039333-7
Cage Code:
10001
RNCC:
5
RNVC:
2
RNAAC:
XX
Status:
A
MSDS:
SADC:
Part Number:
420A302
Cage Code:
81541
RNCC:
5
RNVC:
2
RNAAC:
XX
Status:
A
MSDS:
SADC:

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Circuit Breakers
--------- Circuit Breakers
------------ P/N 520A302

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Last Updated: 08/14/2025