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Circuit Breaker NSN 5925-01-043-9978

Item Description

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.

NSN 5925-01-043-9978 NSN: 5925-01-043-9978

Features and Characteristics

Body Style
Multipole-single actuator type
Body Length
6.000 inches
Body Width
4.344 inches
Body Height
3.000 inches
Case Material
Plastic
Center To Center Distance Between Terminals Parallel To Length
5.125 inches
Center To Center Distance Between Terminals Parallel To Width
1.500 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Length
5.125 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
1.500 inches
Boss Height
0.125 inches
Pole Quantity
3
Mounting Facility Type And Quantity
4 threaded hole
Thready Qty Per Inch (tpi)
32
Maximum Continuous Load Current Rating Per Pole
20.0 amperes ac all locations and 20.0 amperes dc all locations
Operating Voltage Type And Rating Per Pole In Volts
600.0 ac all locations and 250.0 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
Thermal-magnetic all locations
Trip Release Characteristic
Time delay all locations
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent
125.0 all locations
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
Thread Size
0.164 inches
Trip Delay Time In Seconds Per Rated Continuous Current
40.000 at 200 pct all locations and 125.000 at 200 pct all locations
Inclosure Protection Type For Which Designed
Dustproof
Trip Release Ambient Tempurature Rating
40.0 degrees celsius all locations
Frequency In Hertz
60.0 all locations
Thread Series Designator
Unc
Terminal Type And Quantity
6 compression
FSC
5925 Circuit Breakers
NIIN
010439978
NSN
5925010439978

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FH 36020
Cage Code:
56302
Status:
A
MSDS:
Part Number:
FH036020
Cage Code:
56365
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8536200040
  • NAICS: 335313
  • SITC: 77252
  • Description: Automatic circuit breakers, for a voltage not exceeding 1,000 v, nesoi
  • End Use (Code 20005):
    Electric apparatus

Q & A

Frequently asked questions for NSN 5925-01-043-9978
What are the manufacturers of nsn 5925010439978?
Does this nsn 5925010439978 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5925010439978
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.
Does nsn 5925010439978 contain any precious metals?
Precious metal content is unknown.
Does nsn 5925010439978 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 5925010439978?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
00136
FIIG:
A030A0
App. Key:
A
Cond. Code:
1
Status:
A

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