43A8304

View detailed technical data, stock status, and sourcing information for: 43A8304
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-00-109-1785

Item Name Code

00136

Assigment Date

01/01/1963 (63 years ago)

"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."

1.234 inches nominal center to center distance between terminals parallel to length, 1.312 inches nominal body length, 0.250 inches nominal bushing length, single pole type body style, 0.703 inches nominal body width

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Body Style: single pole type
Bushing Length: 0.250 inches nominal
Body Length: 1.312 inches nominal
Body Width: 0.703 inches nominal
Center To Center Distance Between Terminals Parallel To Length: 1.234 inches nominal
Mounting Surface To Terminal End Distance: 1.344 inches nominal
Pole Quantity: 1
Mounting Facility Type And Quantity: 1 threaded bushing
Storage Type: general purpose warehouse
Thread Quantity Per Inch: 32
Maximum Continuous Load Current Rating Per Pole: 20.0 amperes dc single location
Operating Voltage Type And Rating Per Pole In Volts: 30.0 dc single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 575.0 dc single location
Circuit Protection Type: overcurrent single location
Trip Release Method: thermal single location
Trip Release Characteristic: time delay single location
Ultimate Trip Rating Of Continuous Current Rating Per Pole In Percent: 130.0 single location
Reset Method: manual
Main Contact Tripping Mechanism Type: trip free
Manual Actuator Type And Quantity: 1 push button
Actuator Function: reset
Actuator Position Designation: at pole one
Internal Trip Release Configuration: series trip single location
Nominal Thread Size: 0.469 inches
Trip Delay Time In Seconds Per Rated Continuous Current: 10.000 minimum at 200 pct and 50.000 maximum at 200 pct single location
Inclosure Protection Type For Which Designed: dustproof
Trip Release Ambient Temp Rating: 25.0 celsius nominal single location
Thread Series Designator: uns
Terminal Type And Quantity: 2 tab w/screw
Specification/Standard Data: 58536-aa55571/06-003 professional/industrial association standard

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5925-00-539-2105	No Name Available	02/01/1998

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
43A8304	Circuit Breaker
A-A-55571/6	Circuit Breaker
AA55571	Circuit Breaker
AA55571/06-003	Circuit Breaker
PSM20	Circuit Breaker

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5925-00-109-1785?

The FSCG of the NSN 5925-00-109-1785 is 5925

Does the NSN 5925-00-109-1785 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-00-109-1785 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5925-00-109-1785 contain precious materials?

Precious metal content is unknown

Does NSN 5925-00-109-1785 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5925-00-109-1785 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963