M55629/1-221

M556291221 Circuit Breaker
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Datasheet. M55629/1-221 specification


The style designation indicating the configuration that most nearly corresponds to the appearance of the body.

Body Length
A measurement of the longest dimension of the body,in distinction from width.

2.510in.

Body Width
A measurement taken at right angles to the length of the body,in distinction from thickness.

0.730in. and 0.780in.

Case Material
The element,compound,or mixture of which the case is fabricated,excluding any surface treatment.

plastic

Center To Center Distance Between Terminals Parallel To Length
The center to center distance between terminals parallel to the length of the item.

1.660in. and 1.960in.

Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
The distance between centerlines of mounting facilities parallel to the length of the item.

2.046in. and 2.078in.

Fragility Factor
The measure of sensitivity of the item to be packaged. a factor used by packaging engineers in devising proper cushioning in a package.

moderately rugged

Boss Height

0.109in. and 0.171in.

Mounting Surface To Terminal End Distance

2.553in.

Pole Quantity
The number of poles included in the item.

1

Arc Quenching Method
The means of quenching an arc.

magnetic blowout

Mounting Facility Type And Quantity
Indicates the type and number of facilities by which the item is mounted.

2 threaded hole

Storage Type
Indicates the type of storage space required for an item in order to provide the degree of protection necessary to maintain serviceability standards.

general purpose warehouse

Special Handling Feature
The unusual or unique characteristic/s/ or quality/ies/ of an item which necessitates the establishment of a requirement for special handling.

magnetic

Thread Quantity Per Inch
The number of threads on the item per linear inch measured on a line parallel to the thread axis.

32

Maximum Continuous Load Current Rating Per Pole
The maximum current load that each pole is rated to carry continuously.

10.0 amperes ac single location

Operating Voltage Type And Rating Per Pole In Volts
Indicates the type and value of operating voltage for which each pole is designed to operate,expressed in volts.

240.0 ac single location

Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps
Indicates the type and value of the maximum short circuit current that the item will successfully interrupt,per pole,at the specified rated voltage,expressed in amperes.

1000.0 ac single location

Circuit Protection Type
Indicates the type of electrical condition that will cause the device to trip.

overcurrent single location

Trip Release Method
The means by which the trip mechanism is released.

magnetic single location

Trip Release Characteristic
Denotes the type of trip release action.

instantaneous single location

Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
The continuous current rating per pole at which the device must trip in a specified time,expressed in percent.

150.0 single location

Reset Method
The means provided to reposition the mechanism so that the device is ready to function.

manual

Main Contact Tripping Mechanism Type
Indicates the type of mechanism provided for tripping main contacts.

trip free

Manual Actuator Type And Quantity
Indicates the type and number of actuators provided for manual control.

1 toggle

Actuator Function
Denotes the action imparted by actuator operation.

TRIP-Reset

Actuator Position Designation
An indication of the designated position of the actuator.

at pole one

Internal Trip Release Configuration
The basic internal electrical configuration of the trip mechanism.

series trip single location

Nominal Thread Size
A designation that is used for the purpose of general identification of the thread.

0.138in. ⁓9/64"

Inclosure Protection Type For Which Designed
Indicates the type of protection for which the inclosure is designed.

moisture resistant and shock resistant and vibration resistant

Frequency In Hertz
The cycles per second /hertz/ of the alternating current.

400.0 single location

Test Data Document
The specification,standard,drawing,or similar instrument that specifies environmental and performance requirements or test conditions under which an item is tested and establishes acceptable limits within which the item must conform identified by an alphabetic and/or numeric reference number. includes the commercial and government entity (cage) code of the entity controlling the instrument.

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
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.

unc

Terminal Type And Quantity
Indicates the type and number of terminals for providing electrical connection.

2 threaded stud

Specification/standard Data
The document designator of the specification or standard which established the item of supply.

81349-MIL-C-55629/1 government specification

Answers.

What class is the thread series?

Unc

What is the thread quantity per inch?

32

What is the NSN for M55629/1-221?

5925-01-226-3200

How is this classified for shipping?

Schedule B number: 8536200040
Automatic circuit breakers, for a voltage not exceeding 1,000 v

What's the federal classification of M55629/1-221?

FSC 5925 ⁓ Circuit breakers

Excluding relays.

NSN 5925-01-226-3200 CIRCUIT BREAKER

unc thread series 32 thread quantity per inch

NIIN
012263200
NIIN Date
02/15/86
Schedule B
8536200040 
Name Code
00136
FIIG
A030A0
DEMIL / ITAR
Uncontrolled item (Code A)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
--
Enviromental
N/A
Electrostatic ESD & EMI
No ESD or EMI sensitivity

Other Part Numbers Parts with same form, fit, and function by other manufacturers

1. MIL-C-55629 Cage 81349

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M55629/1-221 / Circuit breakerWhat is the formal definition of this item?

A device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. may include provisions for manual operation. at least one set of contacts must be in series with the actuating element(s). a combination of semiconductor and passive devices may be used in lieu of contacts. for automatically operated items in which the actuating (tripping) element and contacts are not in series, see relay (as modified). for items which are operated both manually and automatically but the actuating elements and contact are not in series, see relay-switch. excludes circuit breaker box and magneto "breaker" assemblies. see also switch (as modified); and controller.