#MS556291-101 Input Mains Breaker | Circuit Breakers

MS556291-101

Circuit Breaker

NSN 5925-00-367-7620

DEMIL

Shelf Life

UOM

NIIN

Demil:

NO

Shelf Life:

N/A

UOM:

1 EA

NIIN:

003677620

Product Technical Spec.

Body Style:

Single pole type

Body Length:

2.510 inches

Body Width:

Between 0.730 inches and 0.780 inches

Case Material:

Plastic

Center To Center Distance Between Terminals Parallel To Length:

Between 1.660 inches and 1.960 inches

Distance Between Centerlines Of Mounting Facilities Parallel To Body Length:

Between 2.046 inches and 2.078 inches

Fragility Factor:

Moderately rugged

Boss Height:

0.140 inches

Mounting Surface To Terminal End Distance:

2.553 inches

Pole Quantity:

1

Arc Quenching Method:

Magnetic blowout

Mounting Facility Type And Quantity:

2 threaded hole

Storage Type:

General purpose warehouse

Special Handling Feature:

Magnetic

Thready Qty Per Inch (tpi):

32

Maximum Continuous Load Current Rating Per Pole:

20.0 amperes ac single location

Operating Voltage Type And Rating Per Pole In Volts:

240.0 ac single location

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

1000.0 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:

125.0 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 one

Internal Trip Release Configuration:

Series trip single location

Thread Size:

0.138 inches

Trip Delay Time In Seconds Per Rated Continuous Current:

2.200 at 200 pct single location and 20.000 at 200 pct single location

Inclosure Protection Type For Which Designed:

Moisture resistant and shock resistant and vibration resistant

Frequency In Hertz:

60.0 single location

Test Data Document:

81349-mil-c-55629 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:

Unc

Terminal Type And Quantity:

2 threaded stud

Specification Data:

81349-mil-c-55629/1 government specification

NSN:

5925-00-367-7620

Item Name:

Breaker,input Mains

Cage Code:

96906

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:

APL-1-1-62-203-M

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:

C

RNVC:

1

RNAAC:

ZZ

Status:

A

MSDS:

SADC:

AC

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AW

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

AM12-20-125V60HZ4

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:

AM12MG3-20-120-4

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

ZZ

Status:

A

MSDS:

SADC:

AC

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

ZZ

Status:

A

MSDS:

SADC:

AC

Part Number:

AM1-Z22-101

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

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:

MIL-PRF-55629/1

Cage Code:

RNCC:

4

RNVC:

1

RNAAC:

ZZ

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

5

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

Cage Code:

RNCC:

5

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

47A530118P5

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:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

APL1-55629-1-101

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

TX

Status:

A

MSDS:

SADC:

AF

Part Number:

APL-1-1-6-2-2-20

Cage Code:

RNCC:

C

RNVC:

1

RNAAC:

ZZ

Status:

A

MSDS:

SADC:

AC

Part Number:

Cage Code:

RNCC:

E

RNVC:

8

RNAAC:

TX

Status:

A

MSDS:

SADC:

Part Number:

UPL-1-1-62-203

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:

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Pricing & Availability

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Catalog Drilldown
--- Electrical And Electronic Equipment Components
------ Circuit Breakers
--------- Circuit Breakers
------------ P/N MS556291-101

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Last Updated: 06/02/2025