#0073-539P2 Magnetic Circuit Protector | Circuit Breakers

0073-539P2

Circuit Breaker

NSN 5925-01-044-0307

DEMIL

Shelf Life

UOM

NIIN

Demil:

NO

Shelf Life:

N/A

UOM:

1 EA

NIIN:

010440307

Product Technical Spec.

Thread Pitch Diameters:

+0.3503/+0.3537 inches

Body Style:

Multipole-single actuator type

Bushing Length:

Between 0.332 inches and 0.380 inches

Body Length:

1.562 inches

Body Width:

1.937 inches

Case Material:

Metal

Center To Center Distance Between Terminals Parallel To Length:

0.906 inches

Center To Center Distance Between Terminals Parallel To Width:

Between 0.594 inches and 0.656 inches

Fragility Factor:

Moderately rugged

Mounting Surface To Terminal End Distance:

1.828 inches

Pole Quantity:

3

Arc Quenching Method:

Magnetic blowout

Mounting Facility Type And Quantity:

1 threaded bushing w/panel seal

Storage Type:

General purpose warehouse

Special Handling Feature:

Magnetic

Thready Qty Per Inch (tpi):

32

Maximum Continuous Load Current Rating Per Pole:

2.0 amperes ac all locations and 2.0 amperes dc all locations

Operating Voltage Type And Rating Per Pole In Volts:

240.0 ac all locations and 50.0 dc all locations

Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps:

300.0 ac all locations and 500.0 dc all locations

Circuit Protection Type:

Overcurrent all locations

Trip Release Method:

Magnetic all locations

Trip Release Characteristic:

Time delay all locations

Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent:

115.0 single location

Reset Method:

Manual

Main Contact Tripping Mechanism Type:

Trip free

Manual Actuator Type And Quantity:

1 toggle

Actuator Function:

Trip-reset

Actuator Position Designation:

At pole two

Internal Trip Release Configuration:

Series trip all locations

Thread Size:

0.375 inches

Trip Delay Time In Seconds Per Rated Continuous Current:

0.550 at 200 pct all locations and 10.000 at 200 pct all locations

Inclosure Protection Type For Which Designed:

Fungus resistant and hermetically sealed

Frequency In Hertz:

400.0 all locations

Unpackaged Unit Weight:

150.0 grams

Test Data Document:

81349-mil-c-39019 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Thread Series Designator:

Unef

Terminal Type And Quantity:

6 wire hook

Specification Data:

81349-mil-c-39019/5 government specification

NSN:

5925-01-044-0307

Item Name:

Magnetic Circuit Protector

Cage Code:

99380

Cross Referenced Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

AP112-1-4-2-202

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

AP-112-1-7-2-202

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

AP112-1-6-2-202

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

A5

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

SM333-0-2-250VAC400C1

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

SM333-2-115-400-1

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AW

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

ZZ

Status:

A

MSDS:

SADC:

AC

Part Number:

Cage Code:

RNCC:

2

RNVC:

2

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

4

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

Cage Code:

RNCC:

E

RNVC:

8

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

5

RNVC:

9

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

MIL-C-39019+5B68

Cage Code:

RNCC:

5

RNVC:

9

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

5

RNVC:

9

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

E

RNVC:

8

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

E

RNVC:

8

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

E

RNVC:

8

RNAAC:

TX

Status:

H

MSDS:

SADC:

Part Number:

SM333-2-240VAC400C57

Cage Code:

RNCC:

E

RNVC:

8

RNAAC:

TX

Status:

H

MSDS:

SADC:

Part Number:

SM333-2.0-240V400C1

Cage Code:

RNCC:

E

RNVC:

8

RNAAC:

TX

Status:

H

MSDS:

SADC:

We Guarantee with Every Order

100% Genuine Manufacturers Parts
Every Product thoroughly Inspected
Sales Record Retention of 7 years
Fast Delivery
HAZMAT Certified
Global Shipping

Pricing & Availability

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Circuit Breakers
--------- Circuit Breakers
------------ P/N 0073-539P2

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Last Updated: 08/11/2025