#457D446G20 Circuit Breaker Tripping Unit | Circuit Breakers

457D446G20

Circuit Breaker Tripper

NSN 5925-00-803-5488

DEMIL
Shelf Life
UOM
NIIN
Demil:
DEMIL/MLI
Shelf Life:
N/A
UOM:
1 EA
NIIN:
008035488

Product Technical Spec.

Body Style:
Rectangular dimensional envelope
Overall Length:
4.500 inches
Overall Height:
4.500 inches
Overall Width:
8.250 inches
Unthreaded Mounting Hole Diameter:
0.375 inches
End Application:
Used in circuit breaker nsn 5925-01-075-8931 onboard 270 ft. Wmec coast guard vessels
Pole Quantity:
3
Mounting Facility Type And Quantity:
3 unthreaded hole
Features Provided:
Adjustable trip release
Maximum Continuous Load Current Rating Per Pole:
150.0 amperes ac all locations
Operating Voltage Type And Rating Per Pole In Volts:
500.0 ac all locations
Circuit Protection Type:
Overcurrent all locations
Trip Release Method:
Thermal all locations
Trip Release Characteristic:
Time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent:
150.0 all locations
Ultimate Trip Time Per Pole In Seconds:
3600.000 all locations
Adjustable Trip Setting Current Range Per Pole In Amps:
+625.0/+1300.0 ac all locations
Internal Trip Release Configuration:
Series trip all locations
Trip Delay Time In Seconds Per Rated Continuous Current:
100.000 at 200 pct all locations and 300.000 at 200 pct all locations
Trip Release Ambient Tempurature Rating:
50.0 degrees celsius all locations
Frequency In Hertz:
400.0 all locations
Terminal Type And Quantity:
6 screw
NSN:
5925-00-803-5488
Item Name:
Circuit Breaker Tripping Unit
Cage Code:
79500

Cross Referenced Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
457D446G20
Cage Code:
89946
RNCC:
3
RNVC:
2
RNAAC:
XF
Status:
A
MSDS:
SADC:
Part Number:
4570446G20
Cage Code:
11660
RNCC:
5
RNVC:
9
RNAAC:
HD
Status:
A
MSDS:
SADC:
Part Number:
S457D446G20
Cage Code:
11660
RNCC:
5
RNVC:
9
RNAAC:
HD
Status:
A
MSDS:
SADC:

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Circuit Breakers
--------- Circuit Breaker Trippers
------------ P/N 457D446G20

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Last Updated: 06/05/2025