520A402

View detailed technical data, stock status, and sourcing information for: 520A402
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5925 Circuit Breakers

National Stock Number

5925-00-045-8091

Item Name Code

00136

Assigment Date

01/01/1961 (65 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."

0.630 inches nominal overall width, 1 threaded bushing mounting facility type and quantity, 1.750 inches nominal overall length, 1 pole quantity, 2.570 inches nominal overall height

Product Characteristics

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

Overall Length: 1.750 inches nominal
Overall Height: 2.570 inches nominal
Overall Width: 0.630 inches nominal
Pole Quantity: 1
Mounting Facility Type And Quantity: 1 threaded bushing
Thread Quantity Per Inch: 32
Maximum Continuous Load Current Rating Per Pole: 4.0 amperes ac single location
Operating Voltage Type And Rating Per Pole In Volts: 120.0 ac single location
Maximum Interrupting Capacity Current Type And Rating Per Pole In Amps: 500.0 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
Nominal Thread Size: 0.375 inches
Trip Delay Time In Seconds Per Rated Continuous Current: 0.150 minimum at 200 pct and 0.800 maximum at 200 pct and 0.050 minimum at 300 pct and 0.370 maximum at 300 pct and 0.010 minimum at 400 pct and 0.190 maximum at 400 pct single location
Inclosure Protection Type For Which Designed: hermetically sealed
Frequency In Hertz: 400.0 single location
Thread Series Designator: unef
Terminal Type And Quantity: 2 wire hook

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
1179003P14	Circuit Breaker
520A402	Circuit Breaker

FAQs

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

What is the FSCG of the NSN 5925-00-045-8091?

The FSCG of the NSN 5925-00-045-8091 is 5925

Does the NSN 5925-00-045-8091 have a Schedule B code assigned?

Yes, the Schedule B code is 8536200040

Does NSN 5925-00-045-8091 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 5925-00-045-8091 contain precious materials?

Precious metal content is unknown

Does NSN 5925-00-045-8091 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 5925-00-045-8091 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961